Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
418
FNUS56 KPDT 162044
FWFPDT
Fire Weather Planning Forecast for NE Oregon and SE Washington
National Weather Service Pendleton OR
144 PM PDT Fri May 16 2025
.DISCUSSION...Tonight, an incoming system will bring showers to
the region, with a 10-15% chance of thunderstorms in central and
east-central Oregon. Saturday, area-wide showers will continue
with a 15-30% chance of thunderstorms as well. The best chances
of wetting rains will be in the mountains. By Saturday night and
Sunday, showers will be mostly confined to the mountains. Winds
will increase in magnitude Saturday afternoon, with stronger winds
Sunday.
***Thunderstorms imply strong gusty winds***
***Winds are 20 foot 10 minute averages***
***CWR-chance of wetting rain 0.10 or greater***
***Ventilation Index is derived from the
transport wind multiplied by the mixing
height in 100`s of feet. Index categories
are a generalized indicator and users are
encourage to develop criteria that are
suitable and representative of dispersion
conditions in their local area of interest.***
Note: Max transport winds may not occur
at the same time as max mixing height.
WAZ695-171515-
East Washington South Central Cascade Mountains-
144 PM PDT Fri May 16 2025
.TONIGHT...
* Sky/weather.........Mostly cloudy. A chance of showers in the
evening, then showers likely after midnight.
* Chc of lightning....0 percent.
* Min temperature.....36-43.
* Max humidity........83-98 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 1 to 5 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....West winds 2 to 7 mph in the evening
becoming light winds less than 5 mph.
* CWR.................10 percent.
* Mixing height.......Near surface.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Poor to fair (99-201) decreasing to poor
(25-39) after midnight.
.SATURDAY...
* Sky/weather.........Mostly cloudy. A slight chance of light
freezing rain in the morning. Showers and a slight chance of snow
showers. A slight chance of thunderstorms in the afternoon.
* Chc of lightning....20 percent (slight chance).
* Max temperature.....50-58...except 41-50 ridges.
* Min humidity........56-71 percent...except 67-82 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming west 4 to 9
mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming west 4 to 10
mph in the afternoon.
* CWR.................30 percent.
* Mixing height.......5500 ft agl.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Poor (45-93) increasing to fair (239-497) in
the afternoon.
.SATURDAY NIGHT...
* Sky/weather.........Mostly cloudy. A chance of showers with
possible freezing rain, thunderstorms and snow showers likely in
the evening, then a chance of snow showers, a slight chance of
showers and light freezing rain after midnight.
* Chc of lightning....20 percent (slight chance).
* Min temperature.....33-38...except 28-33 ridges.
* Max humidity........77-92 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 8 to 14 mph with gusts up to 25
mph.
* Ridges/upr slopes....West winds 9 to 15 mph.
* CWR.................10 percent.
* Mixing height.......Near surface.
* Transport winds.....West around 25 mph.
* Ventilation Index...Fair to good (250-552) decreasing to poor to
fair (138-282) after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
chance of snow showers in the morning. A slight chance of rain
and snow showers in the afternoon.
* Chc of lightning....0 percent.
* Max temperature.....46-54...except 37-46 ridges.
* Min humidity........48-63 percent...except 60-75 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 10 to 16 mph with gusts up to 30
mph.
* Ridges/upr slopes....West winds 11 to 17 mph.
* CWR.................0 percent.
* Mixing height.......6500 ft agl.
* Transport winds.....Northwest around 25 mph.
* Ventilation Index...Fair (247-445) increasing to good to
excellent (543-953) in the afternoon.
.Forecast days 3 through 7......
.MONDAY...A chance of rain and snow showers. Partly cloudy. Lows
30 to 36. Highs 45 to 59. West winds 7 to 13 mph.
.TUESDAY...Partly cloudy with a chance of rain and snow showers.
Lows 32 to 39. Highs 44 to 57. West winds 4 to 10 mph.
.WEDNESDAY...Partly cloudy. Lows 30 to 36. Highs 49 to 61. West
winds 5 to 11 mph.
.THURSDAY...Partly cloudy with a slight chance of rain and snow
showers. Lows 32 to 38. Highs 49 to 61. West winds 3 to 8 mph.
.FRIDAY...Partly cloudy. Lows 32 to 38. Highs 53 to 66. West
winds 3 to 8 mph.
$$
WAZ690-171515-
Kittitas Valley-
144 PM PDT Fri May 16 2025
.TONIGHT...
* Sky/weather.........Mostly cloudy. A slight chance of showers in
the evening, then a chance of showers after midnight.
* Chc of lightning....0 percent.
* Min temperature.....46-51...except 41-47 ridges.
* Max humidity........72-87 percent.
* Humidity recovery...Excellent...except Good ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 3 to 8 mph.
* Ridges/upr slopes....Northwest winds 3 to 8 mph.
* CWR.................0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest 5 to 10 mph.
* Ventilation Index...Poor to fair (161-273) decreasing to poor
(25-36) after midnight.
.SATURDAY...
* Sky/weather.........Mostly cloudy. Showers likely in the morning,
then showers and a slight chance of thunderstorms in the
afternoon.
* Chc of lightning....20 percent (slight chance).
* Max temperature.....59-67...except 50-61 ridges.
* Min humidity........39-52 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northwest 5
to 11 mph in the afternoon.
* Ridges/upr slopes....Northwest winds 4 to 9 mph.
* CWR.................10 percent.
* Mixing height.......6500 ft agl.
* Transport winds.....Northwest around 5 mph increasing to around
15 mph in the afternoon.
* Ventilation Index...Poor (48-84) increasing to fair to good
(348-560) in the afternoon.
.SATURDAY NIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
slight chance of showers and thunderstorms in the evening.
* Chc of lightning....20 percent (slight chance).
* Min temperature.....38-43.
* Max humidity........59-74 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 11 to 18 mph with gusts up to 30
mph.
* Ridges/upr slopes....West winds 15 to 21 mph.
* CWR.................0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest 20 to 25 mph.
* Ventilation Index...Fair to good (482-684) decreasing to poor
(91-197) after midnight.
.SUNDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Chc of lightning....0 percent.
* Max temperature.....56-66...except 49-59 ridges.
* Min humidity........29-44 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 15 to 21 mph with gusts up
to 35 mph.
* Ridges/upr slopes....Northwest winds 15 to 25 mph.
* CWR.................0 percent.
* Mixing height.......8000 ft agl.
* Transport winds.....Northwest around 25 mph.
* Ventilation Index...Fair (306-478) increasing to excellent
(987-1050) in the afternoon.
.Forecast days 3 through 7......
.MONDAY...Partly cloudy with a slight chance of showers. Lows
37 to 42. Highs 61 to 71. West winds 10 to 16 mph.
.TUESDAY...Mostly clear. Lows 40 to 45. Highs 60 to 70. West
winds 7 to 13 mph.
.WEDNESDAY...Mostly clear. Lows 38 to 43. Highs 62 to 70.
Northwest winds 8 to 14 mph.
.THURSDAY...Partly cloudy. Lows 41 to 46. Highs 64 to 72. West
winds 5 to 11 mph.
.FRIDAY...Mostly clear. Lows 40 to 45. Highs 67 to 76. West winds
4 to 9 mph.
$$
WAZ694-171515-
Yakama Alpine District-
144 PM PDT Fri May 16 2025
.TONIGHT...
* Sky/weather.........Mostly cloudy. A slight chance of showers in
the evening, then a chance of showers after midnight.
* Chc of lightning....0 percent.
* Min temperature.....39-46...except 34-42 ridges.
* Max humidity........82-97 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 2 to 6 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....West winds 2 to 7 mph in the evening
becoming light winds less than 5 mph.
* CWR.................0 percent.
* Mixing height.......Near surface.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Poor (129-199) decreasing to poor (25-31)
after midnight.
.SATURDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
Light freezing rain likely in the morning. Showers likely. A
slight chance of thunderstorms in the afternoon.
* Chc of lightning....20 percent (slight chance).
* Max temperature.....56-63...except 44-57 ridges.
* Min humidity........42-57 percent...except 56-71 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming west 4 to
10 mph in the afternoon.
* Ridges/upr slopes....West winds 3 to 8 mph.
* CWR.................20 percent.
* Mixing height.......6500 ft agl.
* Transport winds.....Northwest around 5 mph increasing to west
around 15 mph in the afternoon.
* Ventilation Index...Poor (48-94) increasing to fair to good
(357-657) in the afternoon.
.SATURDAY NIGHT...
* Sky/weather.........Partly cloudy. A slight chance of showers,
light freezing rain likely, a slight chance of thunderstorms and
heavy snow showers in the evening, then a chance of light
freezing rain after midnight.
* Chc of lightning....20 percent (slight chance).
* Min temperature.....32-39...except 28-34 ridges.
* Max humidity........74-89 percent.
* Humidity recovery...Good...except Excellent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 8 to 14 mph with gusts up to 30
mph.
* Ridges/upr slopes....West winds 8 to 14 mph.
* CWR.................0 percent.
* Mixing height.......Near surface.
* Transport winds.....West 20 to 25 mph.
* Ventilation Index...Fair to good (393-595) decreasing to poor to
fair (92-240) after midnight.
.SUNDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny. A
chance of rain and snow showers.
* Chc of lightning....0 percent.
* Max temperature.....52-60...except 39-54 ridges.
* Min humidity........34-49 percent...except 47-62 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 9 to 15 mph with gusts up to 35
mph.
* Ridges/upr slopes....West winds 9 to 15 mph.
* CWR.................0 percent.
* Mixing height.......8000 ft agl.
* Transport winds.....Northwest 20 to 25 mph.
* Ventilation Index...Fair (262-448) increasing to good to
excellent (677-975) in the afternoon.
.Forecast days 3 through 7......
.MONDAY...Partly cloudy with a chance of rain and snow showers.
Lows 30 to 37. Highs 49 to 63. West winds 5 to 11 mph.
.TUESDAY...Mostly clear. Lows 33 to 41. Highs 50 to 64. West
winds 5 to 11 mph.
.WEDNESDAY...Mostly clear. Lows 31 to 38. Highs 54 to 67. West
winds 4 to 9 mph.
.THURSDAY...Partly cloudy. Lows 33 to 41. Highs 55 to 67. West
winds 2 to 7 mph.
.FRIDAY...Mostly clear. Lows 33 to 40. Highs 58 to 71. West winds
2 to 7 mph.
$$
ORZ691-WAZ691-171515-
Lower Columbia Basin of Oregon-Lower Columbia Basin of Washington-
144 PM PDT Fri May 16 2025
.TONIGHT...
* Sky/weather.........Mostly cloudy. A slight chance of showers
after midnight.
* Chc of lightning....0 percent.
* Min temperature.....45-51.
* Max humidity........75-88 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 3 to 8 mph.
* Ridges/upr slopes....West winds 3 to 8 mph.
* CWR.................0 percent.
* Mixing height.......Near surface.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Poor to fair (145-255) decreasing to poor
(25-29) after midnight.
.SATURDAY...
* Sky/weather.........Mostly cloudy. A chance of showers in the
morning, then showers likely and a slight chance of thunderstorms
in the afternoon.
* Chc of lightning....20 percent (slight chance).
* Max temperature.....60-68.
* Min humidity........41-54 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 2 to 7 mph increasing to 7 to 13
mph in the afternoon.
* Ridges/upr slopes....Northwest winds 2 to 7 mph shifting to the
west 7 to 13 mph in the afternoon.
* CWR.................20 percent.
* Mixing height.......7000 ft agl.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Poor (46-110) increasing to fair to excellent
(321-713) in the afternoon.
.SATURDAY NIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
slight chance of thunderstorms in the evening. A chance of
showers.
* Chc of lightning....20 percent (slight chance).
* Min temperature.....38-45.
* Max humidity........69-84 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 10 to 17 mph.
* Ridges/upr slopes....West winds 12 to 18 mph.
* CWR.................10 percent.
* Mixing height.......Near surface.
* Transport winds.....West around 20 mph.
* Ventilation Index...Fair to good (242-678) decreasing to poor to
fair (82-250) after midnight.
.SUNDAY...
* Sky/weather.........Partly cloudy. A slight chance of showers.
* Chc of lightning....0 percent.
* Max temperature.....56-67.
* Min humidity........31-46 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 12 to 18 mph with gusts up to 30
mph.
* Ridges/upr slopes....West winds 12 to 18 mph.
* CWR.................0 percent.
* Mixing height.......9500 ft agl.
* Transport winds.....West 20 to 25 mph.
* Ventilation Index...Fair to good (271-523) increasing to
excellent (1034-1050) in the afternoon.
.Forecast days 3 through 7......
.MONDAY...Partly cloudy with a slight chance of showers. Lows
36 to 42. Highs 63 to 71. Southwest winds 9 to 15 mph.
.TUESDAY...Mostly clear. Lows 41 to 46. Highs 63 to 72. West
winds 7 to 13 mph.
.WEDNESDAY...Mostly clear. Lows 39 to 44. Highs 65 to 72. West
winds 6 to 12 mph.
.THURSDAY...Partly cloudy. Lows 42 to 47. Highs 66 to 74. West
winds 4 to 9 mph.
.FRIDAY...Mostly clear. Lows 40 to 45. Highs 69 to 77. West winds
3 to 8 mph.
$$
ORZ692-WAZ692-171515-
Northern Blue Mountains of Oregon-Blue Mountains of Washington-
144 PM PDT Fri May 16 2025
.TONIGHT...
* Sky/weather.........Mostly cloudy. A slight chance of showers
after midnight.
* Chc of lightning....0 percent.
* Min temperature.....39-47...except 36-41 ridges.
* Max humidity........78-92 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Mixing height.......Near surface.
* Transport winds.....South around 5 mph.
* Ventilation Index...Poor (67-119) decreasing to poor (25-30)
after midnight.
.SATURDAY...
* Sky/weather.........Mostly cloudy. A chance of showers in the
morning, then showers and a slight chance of thunderstorms in the
afternoon.
* Chc of lightning....20 percent (slight chance).
* Max temperature.....51-59...except 44-49 ridges.
* Min humidity........60-75 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming west 1 to 6
mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming west 2 to 6
mph in the afternoon.
* CWR.................50 percent.
* Mixing height.......6000 ft agl.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Poor (25-51) increasing to fair (225-339) in
the afternoon.
.SATURDAY NIGHT...
* Sky/weather.........Mostly cloudy. A chance of thunderstorms in
the evening. Showers. A slight chance of snow showers after
midnight.
* Chc of lightning....30 percent (chance).
* Min temperature.....33-39...except 29-34 ridges.
* Max humidity........85-98 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 6 to 12 mph. Gusts to 25 mph
after midnight.
* Ridges/upr slopes....West winds 6 to 12 mph.
* CWR.................50 percent.
* Mixing height.......500 ft agl.
* Transport winds.....West 20 to 25 mph.
* Ventilation Index...Poor to fair (141-317) increasing to poor to
fair (181-283) after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy. Rain and snow showers likely
in the morning, then a chance of showers, snow showers and a
slight chance of thunderstorms in the afternoon.
* Chc of lightning....20 percent (slight chance).
* Max temperature.....46-56...except 38-45 ridges.
* Min humidity........49-64 percent...except 61-76 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 8 to 14 mph with gusts up to 25
mph.
* Ridges/upr slopes....West winds 8 to 14 mph.
* CWR.................20 percent.
* Mixing height.......7500 ft agl.
* Transport winds.....West 20 to 25 mph.
* Ventilation Index...Fair to good (296-530) increasing to
excellent (702-950) in the afternoon.
.Forecast days 3 through 7......
.MONDAY...Warmer. Partly cloudy with a chance of showers. Lows
30 to 38. Highs 53 to 64. Southwest winds 4 to 10 mph.
.TUESDAY...Partly cloudy with a chance of showers. Lows 36 to 43.
Highs 52 to 65. Southwest winds 4 to 10 mph.
.WEDNESDAY...Mostly clear. Lows 34 to 41. Highs 55 to 66.
Southwest winds 4 to 9 mph.
.THURSDAY...A slight chance of showers. Partly cloudy. Lows 36 to
42. Highs 55 to 66. West winds 2 to 7 mph.
.FRIDAY...Mostly clear. Lows 35 to 43. Highs 58 to 70. West winds
2 to 7 mph.
$$
ORZ693-WAZ693-171515-
Canyon Grasslands of Wallowa County-
Southeast Washington Grande Ronde Valley-
144 PM PDT Fri May 16 2025
.TONIGHT...
* Sky/weather.........Mostly cloudy.
* Chc of lightning....0 percent.
* Min temperature.....36-44.
* Max humidity........77-91 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Mixing height.......Near surface.
* Transport winds.....West around 5 mph shifting to the southeast
after midnight.
* Ventilation Index...Poor (58-122) decreasing to poor (25-32)
after midnight.
.SATURDAY...
* Sky/weather.........Mostly cloudy. A chance of showers in the
morning, then showers and a slight chance of thunderstorms in the
afternoon.
* Chc of lightning....20 percent (slight chance).
* Max temperature.....53-62...except 47-55 ridges.
* Min humidity........51-62 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northwest 1
to 5 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming northwest 2
to 6 mph in the afternoon.
* CWR.................40 percent.
* Mixing height.......6500 ft agl.
* Transport winds.....Northwest 5 to 10 mph.
* Ventilation Index...Poor (25-32) increasing to fair (234-340) in
the afternoon.
.SATURDAY NIGHT...
* Sky/weather.........Cloudy. A chance of thunderstorms in the
evening. Showers. Snow showers after midnight.
* Chc of lightning....30 percent (chance).
* Min temperature.....33-40...except 30-35 ridges.
* Max humidity........81-94 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 4 to 9 mph.
* Ridges/upr slopes....West winds 5 to 11 mph.
* CWR.................50 percent.
* Mixing height.......500 ft agl.
* Transport winds.....West 15 to 20 mph.
* Ventilation Index...Poor to fair (135-261) increasing to poor to
fair (180-278) after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy. Rain and snow showers likely
in the morning, then a chance of showers, snow showers and a
slight chance of thunderstorms in the afternoon.
* Chc of lightning....20 percent (slight chance).
* Max temperature.....46-54...except 39-47 ridges.
* Min humidity........49-59 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 5 to 11 mph.
* Ridges/upr slopes....West winds 6 to 12 mph.
* CWR.................20 percent.
* Mixing height.......8000 ft agl.
* Transport winds.....West 20 to 25 mph.
* Ventilation Index...Fair (314-468) increasing to excellent
(719-963) in the afternoon.
.Forecast days 3 through 7......
.MONDAY...Warmer. A slight chance of showers. Mostly cloudy. Lows
30 to 39. Highs 57 to 65. West winds 3 to 8 mph.
.TUESDAY...Partly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 34 to 43. Highs 58 to 67. West
winds 2 to 7 mph.
.WEDNESDAY...Mostly clear. Lows 34 to 41. Highs 60 to 69. West
winds 2 to 7 mph.
.THURSDAY...A slight chance of showers. Partly cloudy. Lows 37 to
44. Highs 59 to 68. West winds 2 to 7 mph.
.FRIDAY...Mostly clear. Lows 35 to 43. Highs 63 to 71. Northwest
winds 2 to 7 mph.
$$
ORZ701-171515-
Eastern Columbia River Gorge of Oregon-
144 PM PDT Fri May 16 2025
.TONIGHT...
* Sky/weather.........Mostly cloudy. A chance of showers after
midnight.
* Chc of lightning....0 percent.
* Min temperature.....44-49.
* Max humidity........86-97 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 3 to 8 mph in the evening
becoming drainage winds less than 5 mph. In the eastern
Columbia River Gorge, west winds 3 to 8 mph.
* Ridges/upr slopes....Northwest winds 2 to 7 mph in the evening
becoming light winds less than 5 mph.
* CWR.................10 percent.
* Mixing height.......Near surface.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Poor to fair (162-240) decreasing to poor
(25-39) after midnight.
.SATURDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
Showers likely. A slight chance of thunderstorms in the
afternoon.
* Chc of lightning....20 percent (slight chance).
* Max temperature.....59-65...except 55-60 ridges.
* Min humidity........48-60 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 2 to 7 mph increasing to 10 to 16
mph with gusts up to 30 mph in the afternoon. In the eastern
Columbia River Gorge, west winds 3 to 8 mph increasing to 11
to 17 mph with gusts up to 30 mph in the afternoon.
* Ridges/upr slopes....West winds 2 to 7 mph increasing to 7 to 13
mph in the afternoon.
* CWR.................10 percent.
* Mixing height.......5500 ft agl.
* Transport winds.....West around 10 mph increasing to around 25
mph in the afternoon.
* Ventilation Index...Poor (107-181) increasing to good to
excellent (685-933) in the afternoon.
.SATURDAY NIGHT...
* Sky/weather.........Partly cloudy. A chance of showers in the
evening, then a slight chance of showers after midnight.
* Chc of lightning....0 percent.
* Min temperature.....37-43.
* Max humidity........77-88 percent.
* Humidity recovery...Good...except Excellent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 12 to 18 mph with gusts up to 30
mph...except west 12 to 18 mph with gusts up to 35 mph in the
eastern Columbia River Gorge.
* Ridges/upr slopes....West winds 11 to 17 mph.
* CWR.................0 percent.
* Mixing height.......Near surface.
* Transport winds.....West around 25 mph.
* Ventilation Index...Good to excellent (507-751) decreasing to
poor to fair (151-307) after midnight.
.SUNDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny. A
slight chance of showers.
* Chc of lightning....0 percent.
* Max temperature.....54-59.
* Min humidity........46-55 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 13 to 19 mph with gusts up to 35
mph. Gusts to 40 mph in the eastern Columbia River Gorge. In
the eastern Columbia River Gorge, west winds 12 to 18 mph
increasing to 15 to 24 mph in the afternoon. Gusts to 40 mph
in the eastern Columbia River Gorge.
* Ridges/upr slopes....West winds 11 to 17 mph.
* CWR.................0 percent.
* Mixing height.......6500 ft agl.
* Transport winds.....West 25 to 30 mph.
* Ventilation Index...Fair to good (387-613) increasing to
excellent (996-1050) in the afternoon.
.Forecast days 3 through 7......
.MONDAY...Partly cloudy with a chance of showers. Lows 36 to 41.
Highs 59 to 64. West winds 8 to 14 mph.
.TUESDAY...Partly cloudy. Lows 41 to 46. Highs 61 to 66. West
winds 5 to 11 mph.
.WEDNESDAY...Partly cloudy. Lows 37 to 42. Highs 64 to 69. West
winds 6 to 12 mph.
.THURSDAY...Partly cloudy. Lows 39 to 44. Highs 64 to 69. West
winds 4 to 9 mph.
.FRIDAY...Mostly clear. Lows 38 to 43. Highs 68 to 73. West winds
4 to 9 mph.
$$
ORZ702-171515-
East Slopes of the Mt. Hood National Forest-
144 PM PDT Fri May 16 2025
.TONIGHT...
* Sky/weather.........Mostly cloudy. Showers likely after midnight.
* Chc of lightning....0 percent.
* Min temperature.....37-44.
* Max humidity........86-99 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................20 percent.
* Mixing height.......Near surface.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Poor (120-190) decreasing to poor (25-41)
after midnight.
.SATURDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
Showers. A slight chance of thunderstorms in the afternoon.
* Chc of lightning....20 percent (slight chance).
* Max temperature.....53-61...except 45-56 ridges.
* Min humidity........50-65 percent...except 62-77 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming west 3 to 8
mph in the afternoon.
* Ridges/upr slopes....West winds 2 to 7 mph.
* CWR.................30 percent.
* Mixing height.......5000 ft agl.
* Transport winds.....West 15 to 20 mph.
* Ventilation Index...Poor (81-173) increasing to fair to good
(357-665) in the afternoon.
.SATURDAY NIGHT...
* Sky/weather.........Mostly cloudy. Showers likely and a slight
chance of snow showers in the evening, then a chance of showers,
snow showers and light freezing rain after midnight.
* Chc of lightning....0 percent.
* Min temperature.....29-37.
* Max humidity........81-96 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 6 to 12 mph.
* Ridges/upr slopes....West winds 6 to 12 mph.
* CWR.................10 percent.
* Mixing height.......500 ft agl.
* Transport winds.....West 25 to 30 mph.
* Ventilation Index...Fair to good (336-570) decreasing to poor to
fair (155-299) after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
chance of showers in the morning. A chance of snow showers. A
slight chance of showers in the afternoon.
* Chc of lightning....0 percent.
* Max temperature.....48-56...except 41-51 ridges.
* Min humidity........48-62 percent...except 59-74 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 7 to 13 mph with gusts up to 30
mph.
* Ridges/upr slopes....West winds 7 to 13 mph.
* CWR.................0 percent.
* Mixing height.......6000 ft agl.
* Transport winds.....West 25 to 30 mph.
* Ventilation Index...Fair (283-475) increasing to good to
excellent (575-989) in the afternoon.
.Forecast days 3 through 7......
.MONDAY...Partly cloudy with a chance of rain and snow showers.
Lows 30 to 36. Highs 48 to 61. West winds 4 to 10 mph.
.TUESDAY...Partly cloudy with a slight chance of rain and snow
showers. Lows 35 to 42. Highs 50 to 63. West winds 2 to 7 mph.
.WEDNESDAY...Partly cloudy. Lows 31 to 39. Highs 54 to 66. West
winds 3 to 8 mph.
.THURSDAY...A slight chance of showers. Partly cloudy. Lows 34 to
41. Highs 54 to 66. West winds 2 to 7 mph.
.FRIDAY...Mostly clear. Lows 33 to 40. Highs 58 to 70. West winds
2 to 7 mph.
$$
ORZ695-171515-
Eagle Cap Wilderness-
144 PM PDT Fri May 16 2025
.TONIGHT...
* Sky/weather.........Mostly cloudy. A slight chance of showers
after midnight.
* Chc of lightning....0 percent.
* Min temperature.....36-42...except 28-36 ridges.
* Max humidity........81-96 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....Northwest winds 2 to 5 mph shifting to the
south after midnight.
* CWR.................0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest around 5 mph shifting to the
southeast after midnight.
* Ventilation Index...Poor (44-98) decreasing to poor (25-33) after
midnight.
.SATURDAY...
* Sky/weather.........Cloudy. Showers likely, a slight chance of
freezing rain and snow showers in the morning, then showers, snow
showers and a slight chance of thunderstorms in the afternoon.
* Chc of lightning....20 percent (slight chance).
* Max temperature.....46-56...except 36-47 ridges.
* Min humidity........65-80 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northwest 2
to 6 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming northwest 2
to 7 mph in the afternoon.
* CWR.................60 percent.
* Mixing height.......5000 ft agl.
* Transport winds.....North 5 to 10 mph.
* Ventilation Index...Poor (25-55) increasing to poor to fair
(129-257) in the afternoon.
.SATURDAY NIGHT...
* Sky/weather.........Mostly cloudy. Showers, snow showers and a
slight chance of thunderstorms in the evening, then rain and snow
showers likely after midnight.
* Chc of lightning....20 percent (slight chance).
* Min temperature.....30-37...except 22-30 ridges.
* Max humidity........85-96 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 6 to 12 mph.
* Ridges/upr slopes....Northwest winds 8 to 14 mph.
* CWR.................60 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest 15 to 20 mph.
* Ventilation Index...Poor to fair (105-251) decreasing to poor to
fair (104-234) after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy. Snow showers likely in the
morning, then a chance of snow showers, showers and a slight
chance of thunderstorms in the afternoon.
* Chc of lightning....20 percent (slight chance).
* Max temperature.....41-51...except 30-42 ridges.
* Min humidity........49-64 percent...except 63-78 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 8 to 14 mph with gusts up to
30 mph.
* Ridges/upr slopes....Northwest winds 8 to 14 mph.
* CWR.................20 percent.
* Mixing height.......8000 ft agl.
* Transport winds.....Northwest around 20 mph.
* Ventilation Index...Poor to fair (191-393) increasing to good to
excellent (501-819) in the afternoon.
.Forecast days 3 through 7......
.MONDAY...Warmer. Partly cloudy with a slight chance of rain and
snow showers. Lows 24 to 34. Highs 46 to 61. Northwest winds 5 to
11 mph.
.TUESDAY...A chance of rain and snow showers. Mostly clear. Lows
28 to 39. Highs 48 to 63. West winds 4 to 9 mph.
.WEDNESDAY...Mostly clear. Lows 28 to 37. Highs 51 to 66. West
winds 4 to 9 mph.
.THURSDAY...Partly cloudy with a slight chance of rain and snow
showers. Lows 30 to 40. Highs 50 to 65. Northwest winds 3 to
8 mph.
.FRIDAY...Mostly clear. Lows 30 to 39. Highs 53 to 68. Northwest
winds 3 to 8 mph.
$$
ORZ694-171515-
Grande Ronde Valley of Oregon-
144 PM PDT Fri May 16 2025
.TONIGHT...
* Sky/weather.........Mostly cloudy. A slight chance of showers
after midnight.
* Chc of lightning....0 percent.
* Min temperature.....40-45.
* Max humidity........84-90 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....North winds 2 to 5 mph in the evening
becoming light winds less than 5 mph.
* CWR.................0 percent.
* Mixing height.......Near surface.
* Transport winds.....North around 5 mph shifting to the southeast
after midnight.
* Ventilation Index...Poor (46-122) decreasing to poor (25-26)
after midnight.
.SATURDAY...
* Sky/weather.........Cloudy. Showers likely in the morning, then
showers and a slight chance of thunderstorms in the afternoon.
* Chc of lightning....20 percent (slight chance).
* Max temperature.....54-59.
* Min humidity........60-65 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northwest 4
to 9 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming northwest 4
to 9 mph in the afternoon.
* CWR.................50 percent.
* Mixing height.......4000 ft agl.
* Transport winds.....Southwest around 5 mph increasing to
northwest around 15 mph in the afternoon.
* Ventilation Index...Poor (40-60) increasing to fair (314-368) in
the afternoon.
.SATURDAY NIGHT...
* Sky/weather.........Mostly cloudy. Showers and a slight chance of
thunderstorms in the evening, then showers likely after midnight.
* Chc of lightning....20 percent (slight chance).
* Min temperature.....35-40.
* Max humidity........78-86 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 9 to 15 mph.
* Ridges/upr slopes....Northwest winds 10 to 16 mph.
* CWR.................30 percent.
* Mixing height.......500 ft agl.
* Transport winds.....Northwest around 20 mph.
* Ventilation Index...Fair (268-390) decreasing to fair (213-291)
after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy. A chance of snow showers in
the morning. A chance of showers. A slight chance of
thunderstorms in the afternoon.
* Chc of lightning....20 percent (slight chance).
* Max temperature.....51-56.
* Min humidity........48-53 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 13 to 19 mph with gusts up
to 35 mph.
* Ridges/upr slopes....Northwest winds 14 to 20 mph.
* CWR.................10 percent.
* Mixing height.......6500 ft agl.
* Transport winds.....Northwest around 20 mph.
* Ventilation Index...Fair to good (432-556) increasing to
excellent (899-1050) in the afternoon.
.Forecast days 3 through 7......
.MONDAY...Warmer. Partly cloudy with a slight chance of showers.
Lows 32 to 37. Highs 63 to 68. Northwest winds 8 to 14 mph.
.TUESDAY...A slight chance of showers. Partly cloudy. Lows 37 to
42. Highs 64 to 69. Northwest winds 4 to 9 mph.
.WEDNESDAY...Mostly clear. Lows 36 to 41. Highs 67 to 72.
Northwest winds 4 to 10 mph.
.THURSDAY...A slight chance of showers. Partly cloudy. Lows 39 to
44. Highs 65 to 70. Northwest winds 4 to 9 mph.
.FRIDAY...Mostly clear. Lows 38 to 43. Highs 69 to 74. Northwest
winds 3 to 8 mph.
$$
ORZ699-171515-
Western Forested Blue Mountains-
144 PM PDT Fri May 16 2025
.TONIGHT...
* Sky/weather.........Mostly cloudy. A chance of showers after
midnight.
* Chc of lightning....0 percent.
* Min temperature.....39-44...except 34-39 ridges.
* Max humidity........88-97 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................10 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest around 5 mph shifting to the
southeast after midnight.
* Ventilation Index...Poor (58-126) decreasing to poor (25-33)
after midnight.
.SATURDAY...
* Sky/weather.........Mostly cloudy. Showers, a slight chance of
thunderstorms and snow showers.
* Chc of lightning....20 percent (slight chance).
* Max temperature.....48-54...except 41-48 ridges.
* Min humidity........64-79 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northwest 2
to 7 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming northwest 2
to 7 mph in the afternoon.
* CWR.................60 percent.
* Mixing height.......4000 ft agl.
* Transport winds.....North around 5 mph increasing to northwest
around 15 mph in the afternoon.
* Ventilation Index...Poor (25-55) increasing to poor to fair
(187-329) in the afternoon.
.SATURDAY NIGHT...
* Sky/weather.........Mostly cloudy. Showers, a slight chance of
thunderstorms and snow showers in the evening, then a chance of
rain and snow showers after midnight.
* Chc of lightning....20 percent (slight chance).
* Min temperature.....32-37...except 27-33 ridges.
* Max humidity........85-94 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 6 to 12 mph.
* Ridges/upr slopes....West winds 7 to 13 mph.
* CWR.................20 percent.
* Mixing height.......500 ft agl.
* Transport winds.....Northwest around 25 mph.
* Ventilation Index...Fair (260-468) decreasing to fair (218-328)
after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy. A chance of snow showers. A
slight chance of showers and thunderstorms in the afternoon.
* Chc of lightning....20 percent (slight chance).
* Max temperature.....45-51...except 38-45 ridges.
* Min humidity........47-59 percent...except 55-70 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 7 to 13 mph with gusts up to 25
mph.
* Ridges/upr slopes....West winds 8 to 14 mph.
* CWR.................10 percent.
* Mixing height.......7000 ft agl.
* Transport winds.....West around 25 mph.
* Ventilation Index...Fair to good (395-565) increasing to
excellent (792-1036) in the afternoon.
.Forecast days 3 through 7......
.MONDAY...Warmer. Partly cloudy with a slight chance of showers.
Lows 27 to 32. Highs 53 to 61. West winds 4 to 9 mph.
.TUESDAY...A slight chance of showers. Mostly clear. Lows 33 to
38. Highs 55 to 63. West winds 2 to 7 mph.
.WEDNESDAY...Mostly clear. Lows 32 to 37. Highs 57 to 66. West
winds 2 to 7 mph.
.THURSDAY...A slight chance of rain and snow showers. Partly
cloudy. Lows 34 to 39. Highs 56 to 65. West winds 1 to 6 mph.
.FRIDAY...Mostly clear. Lows 34 to 39. Highs 60 to 68. West winds
1 to 6 mph.
$$
ORZ696-171515-
John Day Valley-
144 PM PDT Fri May 16 2025
.TONIGHT...
* Sky/weather.........Mostly cloudy. Showers likely and a slight
chance of thunderstorms after midnight.
* Chc of lightning....20 percent (slight chance).
* Min temperature.....39-45.
* Max humidity........85-92 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................20 percent.
* Mixing height.......Near surface.
* Transport winds.....Northeast around 5 mph.
* Ventilation Index...Poor (97-183) decreasing to poor (25-35)
after midnight.
.SATURDAY...
* Sky/weather.........Mostly cloudy. Showers and a slight chance of
thunderstorms.
* Chc of lightning....20 percent (slight chance).
* Max temperature.....51-59...except 46-51 ridges.
* Min humidity........54-68 percent...except 66-73 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northwest 3
to 8 mph in the afternoon.
* Ridges/upr slopes....Northwest winds 2 to 7 mph.
* CWR.................50 percent.
* Mixing height.......4500 ft agl.
* Transport winds.....Northwest 10 to 15 mph.
* Ventilation Index...Poor (33-93) increasing to fair (298-486) in
the afternoon.
.SATURDAY NIGHT...
* Sky/weather.........Mostly cloudy. Showers and a slight chance of
thunderstorms in the evening, then a chance of rain and snow
showers after midnight.
* Chc of lightning....20 percent (slight chance).
* Min temperature.....33-38.
* Max humidity........78-90 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 7 to 13 mph with gusts up to 25
mph.
* Ridges/upr slopes....West winds 9 to 15 mph.
* CWR.................10 percent.
* Mixing height.......500 ft agl.
* Transport winds.....Northwest 20 to 25 mph.
* Ventilation Index...Fair to good (394-628) decreasing to fair
(225-309) after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy. A chance of rain and snow
showers in the morning, then a slight chance of showers,
thunderstorms and snow showers in the afternoon.
* Chc of lightning....10 percent (very low chance).
* Max temperature.....47-55...except 42-47 ridges.
* Min humidity........40-52 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 8 to 14 mph with gusts up to 30
mph.
* Ridges/upr slopes....West winds 8 to 14 mph.
* CWR.................0 percent.
* Mixing height.......7500 ft agl.
* Transport winds.....Northwest around 25 mph.
* Ventilation Index...Fair to good (451-587) increasing to
excellent (979-1050) in the afternoon.
.Forecast days 3 through 7......
.MONDAY...Warmer. A slight chance of showers. Partly cloudy. Lows
30 to 35. Highs 60 to 68. West winds 4 to 10 mph.
.TUESDAY...A slight chance of showers. Mostly clear. Lows 37 to
42. Highs 60 to 68. West winds 2 to 7 mph.
.WEDNESDAY...Mostly clear. Lows 35 to 40. Highs 62 to 71.
Northwest winds 2 to 7 mph.
.THURSDAY...A slight chance of showers. Partly cloudy. Lows 38 to
43. Highs 62 to 70. Northwest winds 2 to 7 mph.
.FRIDAY...Mostly clear. Lows 36 to 41. Highs 65 to 73. Northwest
winds 2 to 7 mph.
$$
ORZ700-171515-
Central Mountains of Oregon-
144 PM PDT Fri May 16 2025
.TONIGHT...
* Sky/weather.........Mostly cloudy. A chance of showers after
midnight.
* Chc of lightning....0 percent.
* Min temperature.....38-44.
* Max humidity........84-92 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................10 percent.
* Mixing height.......Near surface.
* Transport winds.....North 5 to 10 mph.
* Ventilation Index...Poor to fair (171-295) decreasing to poor
(25-51) after midnight.
.SATURDAY...
* Sky/weather.........Mostly cloudy. Showers. A slight chance of
thunderstorms in the afternoon.
* Chc of lightning....20 percent (slight chance).
* Max temperature.....53-59...except 45-51 ridges.
* Min humidity........45-56 percent...except 55-70 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 4 to 10 mph.
* Ridges/upr slopes....Northwest winds 4 to 10 mph.
* CWR.................30 percent.
* Mixing height.......6000 ft agl.
* Transport winds.....Northwest 15 to 20 mph.
* Ventilation Index...Poor to fair (113-233) increasing to good to
excellent (556-864) in the afternoon.
.SATURDAY NIGHT...
* Sky/weather.........Mostly cloudy. A chance of showers, a slight
chance of thunderstorms and light freezing rain in the evening.
* Chc of lightning....20 percent (slight chance).
* Min temperature.....30-36.
* Max humidity........80-89 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 7 to 13 mph with gusts up to
25 mph.
* Ridges/upr slopes....Northwest winds 7 to 13 mph.
* CWR.................0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest 20 to 25 mph.
* Ventilation Index...Good to excellent (518-768) decreasing to
poor to fair (149-335) after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
slight chance of snow showers. A slight chance of showers in the
afternoon.
* Chc of lightning....0 percent.
* Max temperature.....49-55...except 41-48 ridges.
* Min humidity........36-46 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 8 to 14 mph with gusts up to
30 mph.
* Ridges/upr slopes....Northwest winds 8 to 14 mph.
* CWR.................0 percent.
* Mixing height.......8000 ft agl.
* Transport winds.....Northwest around 25 mph.
* Ventilation Index...Fair to good (409-593) increasing to
excellent (1040-1050) in the afternoon.
.Forecast days 3 through 7......
.MONDAY...Warmer. A slight chance of showers. Mostly clear. Lows
26 to 33. Highs 61 to 67. West winds 5 to 11 mph.
.TUESDAY...Mostly clear. Lows 33 to 39. Highs 62 to 68. West
winds 4 to 9 mph.
.WEDNESDAY...Mostly clear. Lows 33 to 38. Highs 64 to 70.
Northwest winds 3 to 8 mph.
.THURSDAY...Mostly clear. Lows 34 to 39. Highs 64 to 69.
Northwest winds 2 to 7 mph.
.FRIDAY...Mostly clear. Lows 34 to 39. Highs 67 to 73. West winds
1 to 6 mph.
$$
ORZ703-171515-
Warm Springs Reservation-
144 PM PDT Fri May 16 2025
.TONIGHT...
* Sky/weather.........Mostly cloudy. A chance of showers after
midnight.
* Chc of lightning....0 percent.
* Min temperature.....43-48...except 36-41 ridges.
* Max humidity........83-95 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 1 to 5 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....West winds 1 to 6 mph.
* CWR.................10 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest 5 to 10 mph.
* Ventilation Index...Poor to fair (163-219) decreasing to poor
(25-39) after midnight.
.SATURDAY...
* Sky/weather.........Mostly cloudy. Showers in the morning, then
showers likely and a slight chance of thunderstorms in the
afternoon.
* Chc of lightning....20 percent (slight chance).
* Max temperature.....54-62...except 41-51 ridges.
* Min humidity........47-59 percent...except 67-82 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 1 to 6 mph increasing to 7 to 13
mph with gusts up to 25 mph in the afternoon.
* Ridges/upr slopes....West winds 6 to 12 mph.
* CWR.................20 percent.
* Mixing height.......6000 ft agl.
* Transport winds.....West 15 to 20 mph.
* Ventilation Index...Poor to fair (134-220) increasing to good to
excellent (524-858) in the afternoon.
.SATURDAY NIGHT...
* Sky/weather.........Mostly cloudy. A slight chance of heavy snow
showers in the evening. A chance of showers. A chance of snow
showers and light freezing rain likely after midnight.
* Chc of lightning....0 percent.
* Min temperature.....36-41...except 28-34 ridges.
* Max humidity........75-83 percent...except 82-96 percent ridges.
* Humidity recovery...Good...except Excellent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 8 to 14 mph with gusts up to 30
mph.
* Ridges/upr slopes....West winds 8 to 14 mph.
* CWR.................0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....West 20 to 25 mph.
* Ventilation Index...Fair to good (455-667) decreasing to poor to
fair (114-298) after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
chance of rain and snow showers.
* Chc of lightning....0 percent.
* Max temperature.....49-58...except 38-47 ridges.
* Min humidity........42-57 percent...except 61-76 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 9 to 15 mph with gusts up to 30
mph.
* Ridges/upr slopes....West winds 9 to 15 mph.
* CWR.................0 percent.
* Mixing height.......7000 ft agl.
* Transport winds.....West 25 to 30 mph.
* Ventilation Index...Fair to good (348-528) increasing to
excellent (852-1050) in the afternoon.
.Forecast days 3 through 7......
.MONDAY...Partly cloudy with a chance of showers. Lows 32 to 37.
Highs 54 to 67. West winds 6 to 12 mph.
.TUESDAY...A slight chance of showers. Partly cloudy. Lows 37 to
42. Highs 56 to 68. West winds 4 to 10 mph.
.WEDNESDAY...Partly cloudy. Lows 34 to 39. Highs 60 to 70. West
winds 4 to 9 mph.
.THURSDAY...Partly cloudy. Lows 36 to 41. Highs 59 to 70. West
winds 3 to 8 mph.
.FRIDAY...Mostly clear. Lows 35 to 40. Highs 63 to 73. West winds
2 to 7 mph.
$$
ORZ704-171515-
Northern Deschutes National Forest-
144 PM PDT Fri May 16 2025
.TONIGHT...
* Sky/weather.........Mostly cloudy. Showers likely and a slight
chance of freezing rain after midnight.
* Chc of lightning....0 percent.
* Min temperature.....36-41.
* Max humidity........84-97 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....West winds 1 to 5 mph in the evening
becoming light winds less than 5 mph.
* CWR.................10 percent.
* Mixing height.......Near surface.
* Transport winds.....West around 10 mph.
* Ventilation Index...Poor to fair (140-238) decreasing to poor
(29-53) after midnight.
.SATURDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
Showers and a slight chance of heavy snow showers. A slight
chance of thunderstorms in the afternoon.
* Chc of lightning....20 percent (slight chance).
* Max temperature.....53-58...except 39-51 ridges.
* Min humidity........49-58 percent...except 65-80 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming west 3 to 7
mph in the afternoon.
* Ridges/upr slopes....West winds 4 to 9 mph.
* CWR.................20 percent.
* Mixing height.......6000 ft agl.
* Transport winds.....West 15 to 20 mph.
* Ventilation Index...Poor to fair (134-250) increasing to fair to
excellent (416-796) in the afternoon.
.SATURDAY NIGHT...
* Sky/weather.........Mostly cloudy. Showers likely with possible
snow showers, freezing rain and thunderstorms in the evening,
then a chance of showers, snow showers and light freezing rain
after midnight.
* Chc of lightning....20 percent (slight chance).
* Min temperature.....28-35.
* Max humidity........79-94 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 4 to 10 mph.
* Ridges/upr slopes....West winds 5 to 11 mph.
* CWR.................10 percent.
* Mixing height.......500 ft agl.
* Transport winds.....West 20 to 25 mph.
* Ventilation Index...Fair to good (367-607) decreasing to poor to
fair (154-294) after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
chance of rain and snow showers.
* Chc of lightning....0 percent.
* Max temperature.....49-54...except 36-46 ridges.
* Min humidity........45-53 percent...except 62-77 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 6 to 12 mph.
* Ridges/upr slopes....West winds 7 to 13 mph.
* CWR.................0 percent.
* Mixing height.......7000 ft agl.
* Transport winds.....West 25 to 30 mph.
* Ventilation Index...Fair to good (380-546) increasing to
excellent (791-1050) in the afternoon.
.Forecast days 3 through 7......
.MONDAY...Partly cloudy with a slight chance of showers. Lows
28 to 33. Highs 51 to 63. West winds 4 to 9 mph.
.TUESDAY...A slight chance of showers. Partly cloudy. Lows 34 to
39. Highs 54 to 66. West winds 3 to 8 mph.
.WEDNESDAY...Mostly clear. Lows 31 to 36. Highs 58 to 69. West
winds 3 to 8 mph.
.THURSDAY...Mostly clear. Lows 32 to 37. Highs 57 to 69. West
winds 2 to 7 mph.
.FRIDAY...Mostly clear. Lows 32 to 37. Highs 60 to 71. West winds
2 to 7 mph.
$$
ORZ705-171515-
Southern Deschutes National Forest-
144 PM PDT Fri May 16 2025
.TONIGHT...
* Sky/weather.........Mostly cloudy. A chance of showers and a
slight chance of light freezing rain after midnight.
* Chc of lightning....0 percent.
* Min temperature.....34-39.
* Max humidity........91-99 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....Northwest winds 1 to 5 mph in the evening
becoming light winds less than 5 mph.
* CWR.................10 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest around 10 mph.
* Ventilation Index...Poor to fair (157-309) decreasing to poor
(33-67) after midnight.
.SATURDAY...
* Sky/weather.........Mostly cloudy. Showers in the morning. A
slight chance of snow showers. A chance of showers and a slight
chance of thunderstorms in the afternoon.
* Chc of lightning....20 percent (slight chance).
* Max temperature.....49-54...except 38-48 ridges.
* Min humidity........47-62 percent...except 65-80 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 3 to 8 mph.
* Ridges/upr slopes....Northwest winds 4 to 9 mph.
* CWR.................20 percent.
* Mixing height.......5500 ft agl.
* Transport winds.....West 15 to 20 mph.
* Ventilation Index...Poor to fair (170-306) increasing to fair to
excellent (423-761) in the afternoon.
.SATURDAY NIGHT...
* Sky/weather.........Mostly cloudy. A chance of showers with
possible freezing rain, thunderstorms and snow showers in the
evening, then a chance of snow showers and light freezing rain
after midnight.
* Chc of lightning....20 percent (slight chance).
* Min temperature.....28-33.
* Max humidity........87-95 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 4 to 9 mph.
* Ridges/upr slopes....West winds 4 to 10 mph.
* CWR.................0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....West around 20 mph.
* Ventilation Index...Fair to good (353-647) decreasing to fair
(224-378) after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
chance of snow showers in the morning.
* Chc of lightning....0 percent.
* Max temperature.....46-51...except 36-45 ridges.
* Min humidity........39-54 percent...except 57-72 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 4 to 9 mph.
* Ridges/upr slopes....Northwest winds 5 to 11 mph.
* CWR.................0 percent.
* Mixing height.......7500 ft agl.
* Transport winds.....Northwest 20 to 25 mph.
* Ventilation Index...Fair to good (371-509) increasing to
excellent (851-1050) in the afternoon.
.Forecast days 3 through 7......
.MONDAY...Warmer. Partly cloudy. Lows 25 to 30. Highs 53 to 65.
West winds 2 to 7 mph.
.TUESDAY...A slight chance of showers. Mostly clear. Lows 32 to
37. Highs 56 to 68. West winds 2 to 7 mph.
.WEDNESDAY...Mostly clear. Lows 31 to 36. Highs 60 to 70. West
winds 1 to 6 mph.
.THURSDAY...Mostly clear. Lows 32 to 37. Highs 59 to 69. West
winds 2 to 7 mph.
.FRIDAY...Mostly clear. Lows 31 to 36. Highs 61 to 71. West winds
2 to 7 mph.
$$
ORZ697-171515-
Central Blue Mountains-
144 PM PDT Fri May 16 2025
.TONIGHT...
* Sky/weather.........Mostly cloudy. Showers likely and a slight
chance of thunderstorms after midnight.
* Chc of lightning....20 percent (slight chance).
* Min temperature.....36-41.
* Max humidity........89-98 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....Northwest winds 1 to 5 mph in the evening
becoming light winds less than 5 mph.
* CWR.................20 percent.
* Mixing height.......Near surface.
* Transport winds.....North around 10 mph shifting to the east
after midnight.
* Ventilation Index...Poor (75-171) decreasing to poor (25-39)
after midnight.
.SATURDAY...
* Sky/weather.........Mostly cloudy. A slight chance of
thunderstorms in the morning. Showers and a slight chance of snow
showers. A chance of thunderstorms in the afternoon.
* Chc of lightning....30 percent (chance).
* Max temperature.....48-53...except 42-48 ridges.
* Min humidity........62-77 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northwest 3
to 7 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming northwest 4
to 9 mph in the afternoon.
* CWR.................60 percent.
* Mixing height.......4500 ft agl.
* Transport winds.....North around 10 mph increasing to northwest
around 20 mph in the afternoon.
* Ventilation Index...Poor (43-97) increasing to fair (242-462) in
the afternoon.
.SATURDAY NIGHT...
* Sky/weather.........Mostly cloudy. Showers, a slight chance of
thunderstorms and snow showers in the evening, then a chance of
rain and snow showers after midnight.
* Chc of lightning....20 percent (slight chance).
* Min temperature.....28-33.
* Max humidity........86-94 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 8 to 14 mph with gusts up to
25 mph.
* Ridges/upr slopes....Northwest winds 9 to 15 mph.
* CWR.................10 percent.
* Mixing height.......500 ft agl.
* Transport winds.....Northwest around 25 mph.
* Ventilation Index...Fair (288-472) decreasing to poor to fair
(195-285) after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy. A chance of snow showers in
the morning, then a slight chance of rain and snow showers in the
afternoon.
* Chc of lightning....0 percent.
* Max temperature.....43-48...except 38-44 ridges.
* Min humidity........44-59 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 9 to 15 mph with gusts up to
30 mph.
* Ridges/upr slopes....Northwest winds 9 to 15 mph.
* CWR.................0 percent.
* Mixing height.......7500 ft agl.
* Transport winds.....Northwest around 25 mph.
* Ventilation Index...Fair to good (393-551) increasing to
excellent (939-1050) in the afternoon.
.Forecast days 3 through 7......
.MONDAY...Warmer. A slight chance of showers. Partly cloudy. Lows
25 to 30. Highs 55 to 62. Northwest winds 5 to 11 mph.
.TUESDAY...Mostly clear. Lows 32 to 37. Highs 58 to 64. West
winds 2 to 7 mph.
.WEDNESDAY...Mostly clear. Lows 32 to 37. Highs 61 to 67.
Northwest winds 3 to 8 mph.
.THURSDAY...A slight chance of showers. Partly cloudy. Lows 34 to
39. Highs 59 to 66. West winds 2 to 7 mph.
.FRIDAY...Mostly clear. Lows 34 to 39. Highs 63 to 69. West winds
2 to 7 mph.
$$
ORZ698-171515-
Southern Blue Mountains-
144 PM PDT Fri May 16 2025
.TONIGHT...
* Sky/weather.........Mostly cloudy. Showers likely and a slight
chance of thunderstorms after midnight.
* Chc of lightning....20 percent (slight chance).
* Min temperature.....37-42.
* Max humidity........82-91 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................20 percent.
* Mixing height.......Near surface.
* Transport winds.....Northeast around 10 mph.
* Ventilation Index...Poor to fair (102-208) decreasing to poor
(25-45) after midnight.
.SATURDAY...
* Sky/weather.........Mostly cloudy. A slight chance of
thunderstorms in the morning. Showers. A chance of thunderstorms
in the afternoon.
* Chc of lightning....30 percent (chance).
* Max temperature.....49-56.
* Min humidity........53-66 percent...except 64-71 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 3 to 8 mph.
* Ridges/upr slopes....light less than 5 mph becoming northwest 3
to 7 mph in the afternoon.
* CWR.................60 percent.
* Mixing height.......5000 ft agl.
* Transport winds.....North around 10 mph increasing to northwest
around 20 mph in the afternoon.
* Ventilation Index...Poor (69-161) increasing to fair to excellent
(430-740) in the afternoon.
.SATURDAY NIGHT...
* Sky/weather.........Mostly cloudy. Showers likely and a slight
chance of thunderstorms in the evening. A slight chance of snow
showers.
* Chc of lightning....20 percent (slight chance).
* Min temperature.....30-35.
* Max humidity........76-89 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 8 to 14 mph with gusts up to
25 mph.
* Ridges/upr slopes....Northwest winds 8 to 14 mph.
* CWR.................10 percent.
* Mixing height.......500 ft agl.
* Transport winds.....Northwest around 25 mph.
* Ventilation Index...Fair to good (427-689) decreasing to fair
(205-333) after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
slight chance of snow showers. A slight chance of showers in the
afternoon.
* Chc of lightning....0 percent.
* Max temperature.....46-51.
* Min humidity........38-46 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 8 to 14 mph with gusts up to
30 mph.
* Ridges/upr slopes....Northwest winds 8 to 14 mph.
* CWR.................0 percent.
* Mixing height.......8500 ft agl.
* Transport winds.....Northwest around 25 mph.
* Ventilation Index...Fair to good (488-654) increasing to
excellent (1049-1050) in the afternoon.
.Forecast days 3 through 7......
.MONDAY...Warmer. Mostly clear. Lows 25 to 30. Highs 61 to 66.
Northwest winds 6 to 12 mph.
.TUESDAY...Mostly clear. Lows 32 to 37. Highs 63 to 68. Northwest
winds 3 to 8 mph.
.WEDNESDAY...Mostly clear. Lows 32 to 37. Highs 66 to 72.
Northwest winds 3 to 8 mph.
.THURSDAY...Mostly clear. Lows 35 to 40. Highs 64 to 69. West
winds 2 to 7 mph.
.FRIDAY...Mostly clear. Lows 35 to 40. Highs 67 to 72. West winds
2 to 7 mph.
$$
.8-14 DAY OUTLOOK for Saturday May 24 through Friday May 30...
A greater chance of near- to above-normal temperatures and near-
to above-normal precipitation.
$$