Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
980
FNUS56 KPDT 240041
FWFPDT
Fire Weather Planning Forecast for NE Oregon and SE Washington
National Weather Service Pendleton OR
541 PM PDT Sat Aug 23 2025
...RED FLAG WARNING IN EFFECT FROM NOON SUNDAY TO 9 PM PDT
MONDAY FOR PORTIONS OF OR700 AND OR704 FOR HOT, DRY, AND UNSTABLE
CONDITIONS...
.DISCUSSION...Hot and dry with largely poor RH recovery next two
nights. Light wind regime and increasing day-to-day instability
through Monday. High surface heating and deep mixing as upper
ridge maintains overhead. Isolated storm chances, mix of wet and
dry, across southern Deschutes National Forecast to central Blues
tomorrow and Monday, slightly higher chances on Monday.
***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.
WAZ695-241115-
East Washington South Central Cascade Mountains-
541 PM PDT Sat Aug 23 2025
.REST OF TONIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
Hazy after midnight.
* Min temperature.....60-65.
* Max humidity........29-40 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....East around 5 mph.
* Ventilation Index...Poor (62-144) decreasing to poor (25-67)
after midnight.
.SUNDAY...
* Sky/weather.........Partly cloudy. Hazy in the morning.
* Max temperature.....87-95...except 79-87 ridges.
* Min humidity........16-23 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......9500 ft agl.
* Transport winds.....Southeast around 5 mph.
* Ventilation Index...Poor (25-78) increasing to poor to fair
(154-310) in the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....62-68.
* Max humidity........35-50 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest around 5 mph.
* Ventilation Index...Poor (40-120) decreasing to poor (25-58)
after midnight.
.MONDAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....87-96...except 79-87 ridges.
* Min humidity........17-27 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming southeast 1
to 5 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......11500 ft agl.
* Transport winds.....Northeast around 5 mph shifting to the south
in the afternoon.
* Ventilation Index...Poor (25-57) increasing to fair (228-434) in
the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly cloudy. Lows 61 to 68. Highs 78 to 93.
Northwest winds 1 to 5 mph.
.WEDNESDAY...Mostly cloudy with a slight chance of showers and
thunderstorms. Lows 58 to 66. Highs 74 to 88. Northwest winds
2 to 7 mph.
.THURSDAY...A slight chance of showers. Partly cloudy. Lows 55 to
62. Highs 72 to 86. West winds 1 to 6 mph.
.FRIDAY...Partly cloudy with a slight chance of showers. Lows
52 to 59. Highs 67 to 81. West winds 2 to 7 mph.
.SATURDAY...Partly cloudy with a slight chance of showers. Lows
49 to 55. Highs 66 to 80. West winds 2 to 7 mph.
$$
WAZ690-241115-
Kittitas Valley-
541 PM PDT Sat Aug 23 2025
.REST OF TONIGHT...
* Sky/weather.........Partly cloudy. Hazy.
* Min temperature.....64-70.
* Max humidity........26-37 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Northeast winds 1 to 5 mph shifting to the
northwest after midnight.
* Ridges/upr slopes....Northeast winds 1 to 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northeast 5 to 10 mph.
* Ventilation Index...Poor (83-141) decreasing to poor (28-76)
after midnight.
.SUNDAY...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
Hazy in the afternoon.
* Max temperature.....94-100...except 83-94 ridges.
* Min humidity........12-17 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northeast winds 1 to 6 mph.
* Ridges/upr slopes....Northeast winds 1 to 6 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......9000 ft agl.
* Transport winds.....Northeast 5 to 10 mph.
* Ventilation Index...Poor (43-113) increasing to fair (267-383) in
the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....66-72.
* Max humidity........31-44 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph becoming
northwest 1 to 6 mph after midnight.
* Ridges/upr slopes....light winds less than 5 mph becoming
northwest 2 to 6 mph after midnight.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northeast around 5 mph shifting to the
northwest after midnight.
* Ventilation Index...Poor (58-130) decreasing to poor (27-73)
after midnight.
.MONDAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....94-101...except 85-96 ridges.
* Min humidity........13-18 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 1 to 6 mph shifting to the
east 2 to 6 mph in the afternoon.
* Ridges/upr slopes....Northwest winds 2 to 7 mph shifting to the
east 2 to 5 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......11500 ft agl.
* Transport winds.....North around 10 mph shifting to the southeast
in the afternoon.
* Ventilation Index...Poor (27-69) increasing to fair (230-430) in
the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Partly cloudy. Lows 68 to 73. Highs 92 to 99. North
winds 2 to 7 mph.
.WEDNESDAY...Mostly cloudy with a slight chance of showers. Lows
66 to 73. Highs 88 to 95. Northwest winds 2 to 7 mph.
.THURSDAY...A slight chance of showers. Partly cloudy. Lows 63 to
69. Highs 86 to 93. Northwest winds 2 to 7 mph.
.FRIDAY...Partly cloudy. Lows 59 to 65. Highs 83 to 90. West
winds 2 to 7 mph.
.SATURDAY...Mostly clear. Lows 56 to 62. Highs 80 to 88. West
winds 3 to 8 mph.
$$
WAZ694-241115-
Yakama Alpine District-
541 PM PDT Sat Aug 23 2025
.REST OF TONIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
Hazy after midnight.
* Min temperature.....60-67.
* Max humidity........28-40 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph becoming
northeast 2 to 5 mph after midnight.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northeast 5 to 10 mph.
* Ventilation Index...Poor (56-134) decreasing to poor (25-65)
after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
Hazy.
* Max temperature.....92-99...except 82-92 ridges.
* Min humidity........14-20 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming east 1 to 5
mph in the afternoon.
* Ridges/upr slopes....Northeast winds 2 to 5 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......8500 ft agl.
* Transport winds.....East around 5 mph.
* Ventilation Index...Poor (26-88) increasing to poor to fair
(129-285) in the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....63-70.
* Max humidity........34-49 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....North around 5 mph.
* Ventilation Index...Poor (38-96) decreasing to poor (25-49) after
midnight.
.MONDAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....91-98...except 81-92 ridges.
* Min humidity........15-25 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming southeast 1
to 5 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......10500 ft agl.
* Transport winds.....North around 5 mph shifting to the southeast
in the afternoon.
* Ventilation Index...Poor (25-42) increasing to fair (230-378) in
the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly cloudy. Lows 62 to 69. Highs 83 to 95.
Northwest winds 1 to 5 mph.
.WEDNESDAY...Mostly cloudy with a slight chance of showers and
thunderstorms. Lows 59 to 66. Highs 79 to 91. West winds 1 to
6 mph.
.THURSDAY...Partly cloudy. Lows 56 to 62. Highs 77 to 89. West
winds 1 to 6 mph.
.FRIDAY...Partly cloudy. Lows 53 to 60. Highs 73 to 86. West
winds 2 to 7 mph.
.SATURDAY...Partly cloudy. Lows 50 to 57. Highs 71 to 83.
Southwest winds 2 to 7 mph.
$$
ORZ691-WAZ691-241115-
Lower Columbia Basin of Oregon-Lower Columbia Basin of Washington-
541 PM PDT Sat Aug 23 2025
.REST OF TONIGHT...
* Sky/weather.........Partly cloudy. Hazy.
* Min temperature.....62-68.
* Max humidity........30-45 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Northeast winds 2 to 7 mph early in the
evening becoming drainage winds less than 5 mph.
* Ridges/upr slopes....North winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....North around 10 mph.
* Ventilation Index...Poor (68-146) decreasing to poor (25-52)
after midnight.
.SUNDAY...
* Sky/weather.........Partly cloudy. Hazy.
* Max temperature.....95-101.
* Min humidity........12-17 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming north 2 to
6 mph in the afternoon.
* Ridges/upr slopes....North winds 2 to 6 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......8500 ft agl.
* Transport winds.....North around 5 mph.
* Ventilation Index...Poor (25-66) increasing to fair (210-356) in
the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Partly cloudy. Hazy.
* Min temperature.....65-71.
* Max humidity........31-45 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Northeast winds 1 to 5 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....North winds 2 to 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....North around 5 mph.
* Ventilation Index...Poor (87-169) decreasing to poor (25-45)
after midnight.
.MONDAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....95-101.
* Min humidity........13-18 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming north 2 to
5 mph in the afternoon.
* Ridges/upr slopes....North winds 2 to 6 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......10000 ft agl.
* Transport winds.....West around 5 mph shifting to the northeast
in the afternoon.
* Ventilation Index...Poor (25-41) increasing to poor to fair
(189-325) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Partly cloudy. Lows 66 to 71. Highs 93 to 99.
Northwest winds 2 to 6 mph.
.WEDNESDAY...Mostly cloudy with a slight chance of showers. Lows
66 to 71. Highs 89 to 95. West winds 2 to 7 mph.
.THURSDAY...A slight chance of showers. Partly cloudy. Lows 62 to
69. Highs 88 to 95. Southwest winds 2 to 7 mph.
.FRIDAY...Partly cloudy. Lows 60 to 65. Highs 84 to 92. Southwest
winds 2 to 7 mph.
.SATURDAY...Mostly clear. Lows 57 to 62. Highs 83 to 89.
Southwest winds 3 to 8 mph.
$$
ORZ692-WAZ692-241115-
Northern Blue Mountains of Oregon-Blue Mountains of Washington-
541 PM PDT Sat Aug 23 2025
.REST OF TONIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
Areas of smoke early in the evening. Hazy.
* Min temperature.....60-68.
* Max humidity........26-36 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northeast 5 to 10 mph.
* Ventilation Index...Poor (37-133) decreasing to poor (25-51)
after midnight.
.SUNDAY...
* Sky/weather.........Partly cloudy. Hazy.
* Max temperature.....88-97...except 81-88 ridges.
* Min humidity........14-19 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......11500 ft agl.
* Transport winds.....Northwest around 5 mph.
* Ventilation Index...Poor (25-41) increasing to poor to fair
(168-346) in the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Partly cloudy. Hazy.
* Min temperature.....61-69.
* Max humidity........30-39 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northeast 5 to 10 mph.
* Ventilation Index...Poor (55-149) decreasing to poor (25-50)
after midnight.
.MONDAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....87-96...except 80-86 ridges.
* Min humidity........15-20 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......13000 ft agl.
* Transport winds.....Northwest around 5 mph.
* Ventilation Index...Poor (25-42) increasing to fair (293-401) in
the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly cloudy. Lows 61 to 69. Highs 82 to 93. West
winds 1 to 5 mph.
.WEDNESDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 60 to 68. Highs 77 to 89. Terrain
driven winds less than 5 mph.
.THURSDAY...A chance of showers and a slight chance of
thunderstorms. Mostly cloudy. Lows 57 to 64. Highs 76 to 88.
Southwest winds 1 to 5 mph.
.FRIDAY...Partly cloudy. Lows 55 to 62. Highs 76 to 86. Southwest
winds 1 to 5 mph.
.SATURDAY...Mostly clear. Lows 52 to 59. Highs 74 to 85. West
winds 1 to 5 mph.
$$
ORZ693-WAZ693-241115-
Canyon Grasslands of Wallowa County-
Southeast Washington Grande Ronde Valley-
541 PM PDT Sat Aug 23 2025
.REST OF TONIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
Hazy and areas of smoke.
* Min temperature.....58-67...except 63-68 ridges.
* Max humidity........26-36 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....Northeast winds 2 to 5 mph shifting to the
southeast after midnight.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northeast 5 to 10 mph.
* Ventilation Index...Poor (88-186) decreasing to poor (25-55)
after midnight.
.SUNDAY...
* Sky/weather.........Partly cloudy. Hazy.
* Max temperature.....90-98...except 83-90 ridges.
* Min humidity........11-16 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming north 2 to
5 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming north 2 to 5
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......13000 ft agl.
* Transport winds.....Northeast around 5 mph shifting to the
northwest in the afternoon.
* Ventilation Index...Poor (25-41) increasing to fair to good
(364-574) in the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
Hazy in the evening.
* Min temperature.....59-68.
* Max humidity........30-42 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 1 to 5 mph in the evening
becoming 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.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest 5 to 10 mph.
* Ventilation Index...Poor to fair (114-220) decreasing to poor
(25-51) after midnight.
.MONDAY...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Max temperature.....88-97...except 80-89 ridges.
* Min humidity........13-18 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......13500 ft agl.
* Transport winds.....Southwest around 5 mph shifting to the north
in the afternoon.
* Ventilation Index...Poor (25-52) increasing to fair (270-384) in
the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly cloudy. Lows 60 to 69. Highs 84 to 94. West
winds 1 to 5 mph.
.WEDNESDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 58 to 67. Highs 78 to 88. South
winds 1 to 6 mph.
.THURSDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 54 to 64. Highs 76 to 86. Southwest
winds 1 to 6 mph.
.FRIDAY...Partly cloudy with a slight chance of showers. Lows
51 to 61. Highs 78 to 88. Terrain driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 50 to 59. Highs 78 to 87. Terrain
driven winds less than 5 mph.
$$
ORZ701-241115-
Eastern Columbia River Gorge of Oregon-
541 PM PDT Sat Aug 23 2025
.REST OF TONIGHT...
* Sky/weather.........Mostly cloudy. Hazy.
* Min temperature.....64-69.
* Max humidity........29-43 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....East around 5 mph shifting to the west after
midnight.
* Ventilation Index...Poor (64-128) decreasing to poor (25-50)
after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
Hazy.
* Max temperature.....96-101.
* Min humidity........13-18 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......7500 ft agl.
* Transport winds.....Northeast around 5 mph.
* Ventilation Index...Poor (25-41) increasing to fair (230-306) in
the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....66-71.
* Max humidity........43-58 percent.
* Humidity recovery...Moderate...except Poor ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph. In the
eastern Columbia River Gorge, drainage winds less than 5 mph
becoming west 2 to 7 mph after midnight.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest 5 to 10 mph.
* Ventilation Index...Poor (56-142) decreasing to poor (27-71)
after midnight.
.MONDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
* Max temperature.....94-99.
* Min humidity........18-27 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph...except west 2 to 6
mph in the eastern Columbia River Gorge.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......8500 ft agl.
* Transport winds.....West around 5 mph shifting to the east in the
afternoon.
* Ventilation Index...Poor (25-52) increasing to poor to fair
(188-304) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly cloudy. Lows 65 to 71. Highs 90 to 95. West
winds 1 to 6 mph.
.WEDNESDAY...Mostly cloudy. Lows 62 to 67. Highs 87 to 93. West
winds 2 to 7 mph.
.THURSDAY...Partly cloudy. Lows 59 to 64. Highs 87 to 92. West
winds 2 to 7 mph.
.FRIDAY...Partly cloudy. Lows 56 to 61. Highs 82 to 87. West
winds 2 to 7 mph.
.SATURDAY...Partly cloudy. Lows 54 to 59. Highs 81 to 86.
Northwest winds 3 to 8 mph.
$$
ORZ702-241115-
East Slopes of the Mt. Hood National Forest-
541 PM PDT Sat Aug 23 2025
.REST OF TONIGHT...
* Sky/weather.........Mostly cloudy. Hazy.
* Min temperature.....62-70.
* Max humidity........26-35 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....East around 5 mph.
* Ventilation Index...Poor (52-122) decreasing to poor (25-46)
after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
Hazy.
* Max temperature.....93-99...except 86-94 ridges.
* Min humidity........14-20 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......7000 ft agl.
* Transport winds.....East around 5 mph.
* Ventilation Index...Poor (25-48) increasing to fair (200-304) in
the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....63-71.
* Max humidity........39-53 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest around 5 mph.
* Ventilation Index...Poor (39-125) decreasing to poor (25-44)
after midnight.
.MONDAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....92-98...except 83-93 ridges.
* Min humidity........18-29 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......8000 ft agl.
* Transport winds.....North around 5 mph shifting to the east in
the afternoon.
* Ventilation Index...Poor (25-33) increasing to fair (217-343) in
the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly cloudy. Lows 61 to 69. Highs 80 to 94. Terrain
driven winds less than 5 mph.
.WEDNESDAY...A slight chance of showers. Mostly cloudy. Lows
57 to 65. Highs 77 to 92. Terrain driven winds less than 5 mph.
.THURSDAY...Partly cloudy. Lows 54 to 62. Highs 76 to 90. Terrain
driven winds less than 5 mph.
.FRIDAY...Partly cloudy. Lows 53 to 59. Highs 71 to 85. Terrain
driven winds less than 5 mph.
.SATURDAY...Partly cloudy. Lows 50 to 57. Highs 71 to 84. West
winds up to 5 mph.
$$
ORZ695-241115-
Eagle Cap Wilderness-
541 PM PDT Sat Aug 23 2025
.REST OF TONIGHT...
* Sky/weather.........Mostly cloudy. Hazy. Patchy smoke in the
evening.
* Min temperature.....61-68...except 56-64 ridges.
* Max humidity........26-32 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph becoming
northeast 2 to 5 mph in the evening, then shifting to the
west after midnight.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northeast around 5 mph.
* Ventilation Index...Poor (43-163) decreasing to poor (25-61)
after midnight.
.SUNDAY...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
Hazy.
* Max temperature.....86-96...except 74-85 ridges.
* Min humidity........15-22 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph becoming northwest 2
to 5 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......12500 ft agl.
* Transport winds.....Northwest 5 to 10 mph.
* Ventilation Index...Poor (25-54) increasing to fair to good
(352-518) in the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Mostly cloudy. Hazy in the evening.
* Min temperature.....61-67...except 55-63 ridges.
* Max humidity........31-38 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 2 to 5 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....North winds 2 to 6 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....North 5 to 10 mph.
* Ventilation Index...Poor to fair (76-204) decreasing to poor
(25-68) after midnight.
.MONDAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....82-93...except 70-82 ridges.
* Min humidity........18-26 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....Northwest winds 2 to 5 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......13500 ft agl.
* Transport winds.....North around 5 mph.
* Ventilation Index...Poor (25-53) increasing to poor to fair
(195-395) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly cloudy with a slight chance of showers and
thunderstorms. Lows 56 to 65. Highs 72 to 87. Terrain driven
winds less than 5 mph.
.WEDNESDAY...Mostly cloudy with a chance of showers and
thunderstorms. Lows 53 to 63. Highs 66 to 81. Terrain driven
winds less than 5 mph.
.THURSDAY...A chance of showers and a slight chance of
thunderstorms. Mostly cloudy. Lows 49 to 59. Highs 66 to 81.
Terrain driven winds less than 5 mph.
.FRIDAY...Partly cloudy with a slight chance of showers. Lows
48 to 58. Highs 68 to 83. Terrain driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 47 to 56. Highs 67 to 82.
Southwest winds 1 to 5 mph.
$$
ORZ694-241115-
Grande Ronde Valley of Oregon-
541 PM PDT Sat Aug 23 2025
.REST OF TONIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
Hazy.
* Min temperature.....57-63.
* Max humidity........33-42 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....North winds 2 to 5 mph early in the evening
becoming light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......5000 ft agl early in the evening then near
surface.
* Transport winds.....North around 5 mph.
* Ventilation Index...Poor (52-172) decreasing to poor (31-57)
after midnight.
.SUNDAY...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
Hazy.
* Max temperature.....95-100.
* Min humidity........12-17 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northwest 2
to 5 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming north 3 to 6
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......11000 ft agl.
* Transport winds.....Northwest around 5 mph.
* Ventilation Index...Poor (34-56) increasing to fair (352-440) in
the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
Hazy in the evening.
* Min temperature.....59-64.
* Max humidity........37-45 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 3 to 6 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....Northwest winds 3 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest 5 to 10 mph.
* Ventilation Index...Poor to fair (158-222) decreasing to poor
(36-70) after midnight.
.MONDAY...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Max temperature.....91-96.
* Min humidity........14-19 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph becoming north 2 to 5
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......13000 ft agl.
* Transport winds.....North around 5 mph.
* Ventilation Index...Poor (28-50) increasing to fair (393-495) in
the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly cloudy with a slight chance of showers and
thunderstorms. Lows 61 to 66. Highs 88 to 94. West winds 1 to
6 mph.
.WEDNESDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 60 to 65. Highs 82 to 88. South
winds 1 to 5 mph.
.THURSDAY...A chance of showers and a slight chance of
thunderstorms. Mostly cloudy. Lows 57 to 62. Highs 83 to 88.
Terrain driven winds less than 5 mph.
.FRIDAY...A slight chance of showers. Partly cloudy. Lows 54 to
59. Highs 84 to 89. Terrain driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 52 to 57. Highs 83 to 88.
Northwest winds 1 to 5 mph.
$$
ORZ699-241115-
Western Forested Blue Mountains-
541 PM PDT Sat Aug 23 2025
.REST OF TONIGHT...
* Sky/weather.........Mostly cloudy. Hazy.
* Min temperature.....59-65.
* Max humidity........29-35 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northeast 5 to 10 mph.
* Ventilation Index...Poor (42-120) decreasing to poor (25-45)
after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy. Hazy.
* Max temperature.....88-94...except 81-88 ridges.
* Min humidity........16-21 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......12500 ft agl.
* Transport winds.....Northwest around 5 mph.
* Ventilation Index...Poor (25-42) increasing to fair (209-357) in
the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Mostly cloudy. Hazy in the evening.
* Min temperature.....59-66.
* Max humidity........34-42 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest 5 to 10 mph.
* Ventilation Index...Poor (80-170) decreasing to poor (25-50)
after midnight.
.MONDAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....85-91...except 78-85 ridges.
* Min humidity........18-23 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......12500 ft agl.
* Transport winds.....North around 5 mph.
* Ventilation Index...Poor (25-39) increasing to fair (301-431) in
the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly cloudy with a slight chance of showers and
thunderstorms. Lows 58 to 64. Highs 78 to 87. Terrain driven
winds less than 5 mph.
.WEDNESDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 56 to 63. Highs 74 to 84. Terrain
driven winds less than 5 mph.
.THURSDAY...A slight chance of showers and thunderstorms. Mostly
cloudy. Lows 53 to 59. Highs 74 to 84. Terrain driven winds less
than 5 mph.
.FRIDAY...Partly cloudy. Lows 51 to 57. Highs 74 to 83. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 49 to 54. Highs 73 to 82. Terrain
driven winds less than 5 mph.
$$
ORZ696-241115-
John Day Valley-
541 PM PDT Sat Aug 23 2025
.REST OF TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
Hazy.
* Min temperature.....61-66.
* Max humidity........31-37 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 1 to 5 mph early in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....North winds 2 to 5 mph early in the evening
becoming light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....North 5 to 10 mph.
* Ventilation Index...Poor to fair (78-202) decreasing to poor
(25-55) after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
Hazy.
* Max temperature.....89-98...except 85-90 ridges.
* Min humidity........14-19 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph becoming northwest 2
to 5 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......11500 ft agl.
* Transport winds.....North around 5 mph.
* Ventilation Index...Poor (25-44) increasing to poor to fair
(174-314) in the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Mostly cloudy. Hazy.
* Min temperature.....63-68.
* Max humidity........35-46 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 1 to 5 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....North winds 1 to 5 mph in the evening
becoming light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northeast around 10 mph shifting to the south
after midnight.
* Ventilation Index...Poor to fair (116-230) decreasing to poor
(25-67) after midnight.
.MONDAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....87-95...except 82-87 ridges.
* Min humidity........15-20 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......13000 ft agl.
* Transport winds.....South around 5 mph shifting to the north in
the afternoon.
* Ventilation Index...Poor (25-48) increasing to poor to fair
(176-412) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly cloudy with a slight chance of showers and
thunderstorms. Lows 61 to 66. Highs 83 to 91. North winds 1 to
5 mph.
.WEDNESDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 58 to 65. Highs 80 to 89. Terrain
driven winds less than 5 mph.
.THURSDAY...A slight chance of showers and thunderstorms. Partly
cloudy. Lows 55 to 62. Highs 81 to 90. Terrain driven winds less
than 5 mph.
.FRIDAY...Partly cloudy. Lows 54 to 59. Highs 80 to 89. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 52 to 57. Highs 78 to 87.
Southwest winds 1 to 5 mph.
$$
ORZ700-241115-
Central Mountains of Oregon-
541 PM PDT Sat Aug 23 2025
...RED FLAG WARNING IN EFFECT FROM NOON SUNDAY TO 9 PM PDT
MONDAY...
.REST OF TONIGHT...
* Sky/weather.........Mostly cloudy. Hazy. Areas of smoke after
midnight.
* Min temperature.....55-63...except 60-65 ridges.
* Max humidity........33-42 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 1 to 6 mph early in the
evening becoming drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest 5 to 10 mph.
* Ventilation Index...Poor to fair (105-257) decreasing to poor
(25-44) after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy. Areas of smoke in the morning.
Hazy. A slight chance of showers and thunderstorms in the
afternoon.
* Max temperature.....90-96...except 84-89 ridges.
* Min humidity........14-19 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming west 2 to 5
mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......11500 ft agl.
* Transport winds.....North around 5 mph shifting to the south in
the afternoon.
* Ventilation Index...Poor (25-36) increasing to fair (220-368) in
the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Mostly cloudy. A slight chance of showers and
thunderstorms in the evening. Hazy.
* Min temperature.....59-66.
* Max humidity........40-54 percent.
* Humidity recovery...Moderate...except Poor ridges.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 1 to 6 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......Near surface.
* Transport winds.....Northeast around 10 mph shifting to the south
after midnight.
* Ventilation Index...Poor to fair (140-256) decreasing to poor
(25-55) after midnight.
.MONDAY...
* Sky/weather.........Mostly cloudy. A slight chance of showers and
thunderstorms in the afternoon.
* Max temperature.....86-94...except 80-85 ridges.
* Min humidity........17-23 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......11500 ft agl.
* Transport winds.....Southeast around 5 mph.
* Ventilation Index...Poor (25-39) increasing to fair (228-394) in
the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly cloudy with a slight chance of showers and
thunderstorms. Lows 56 to 65. Highs 82 to 91. Northwest winds
1 to 6 mph.
.WEDNESDAY...Mostly cloudy with a slight chance of showers and
thunderstorms. Lows 53 to 62. Highs 81 to 89. West winds 1 to
6 mph.
.THURSDAY...Partly cloudy with a slight chance of showers and
thunderstorms. Lows 50 to 59. Highs 81 to 89. Southwest winds
1 to 6 mph.
.FRIDAY...Partly cloudy. Lows 49 to 57. Highs 80 to 86. Southwest
winds 2 to 7 mph.
.SATURDAY...Mostly clear. Lows 47 to 54. Highs 79 to 85.
Southwest winds 2 to 7 mph.
$$
ORZ703-241115-
Warm Springs Reservation-
541 PM PDT Sat Aug 23 2025
.REST OF TONIGHT...
* Sky/weather.........Mostly cloudy. Hazy.
* Min temperature.....63-68.
* Max humidity........28-33 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 2 to 7 mph early in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....Northeast winds 1 to 5 mph early in the
evening becoming light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....North 5 to 10 mph.
* Ventilation Index...Poor (92-180) decreasing to poor (25-42)
after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
Hazy.
* Max temperature.....93-100...except 82-91 ridges.
* Min humidity........13-18 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northeast 2
to 6 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......8500 ft agl.
* Transport winds.....Northeast around 5 mph.
* Ventilation Index...Poor (25-37) increasing to fair (260-340) in
the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
Hazy after midnight.
* Min temperature.....65-70.
* Max humidity........40-48 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 2 to 7 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....Northwest winds 1 to 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....North 5 to 10 mph.
* Ventilation Index...Poor to fair (107-225) decreasing to poor
(25-46) after midnight.
.MONDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
* Max temperature.....92-98...except 80-90 ridges.
* Min humidity........17-25 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northeast 2
to 5 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......11000 ft agl.
* Transport winds.....Northwest around 5 mph shifting to the east
in the afternoon.
* Ventilation Index...Poor (25-35) increasing to fair (306-388) in
the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly cloudy. Lows 64 to 69. Highs 85 to 95.
Northwest winds 2 to 7 mph.
.WEDNESDAY...Mostly cloudy. Lows 60 to 65. Highs 83 to 93. West
winds 2 to 7 mph.
.THURSDAY...Partly cloudy. Lows 57 to 62. Highs 82 to 93. West
winds 2 to 7 mph.
.FRIDAY...Partly cloudy. Lows 55 to 60. Highs 77 to 89. West
winds 2 to 7 mph.
.SATURDAY...Partly cloudy. Lows 52 to 57. Highs 77 to 87. West
winds 2 to 7 mph.
$$
ORZ704-241115-
Northern Deschutes National Forest-
541 PM PDT Sat Aug 23 2025
...RED FLAG WARNING IN EFFECT FROM NOON SUNDAY TO 9 PM PDT
MONDAY...
.REST OF TONIGHT...
* Sky/weather.........Mostly cloudy. Hazy and areas of smoke.
* Min temperature.....57-63.
* Max humidity........30-37 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph becoming
northwest 1 to 5 mph after midnight.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....North 5 to 10 mph.
* Ventilation Index...Poor (89-177) decreasing to poor (25-47)
after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
Hazy. Areas of smoke in the afternoon.
* Max temperature.....92-99...except 80-89 ridges.
* Min humidity........16-24 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......8500 ft agl.
* Transport winds.....Northeast around 5 mph.
* Ventilation Index...Poor (25-40) increasing to fair (205-313) in
the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Mostly cloudy. Areas of smoke in the evening.
Hazy.
* Min temperature.....60-65.
* Max humidity........44-52 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph becoming west 1
to 5 mph after midnight.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest 5 to 10 mph.
* Ventilation Index...Poor to fair (122-224) decreasing to poor
(25-49) after midnight.
.MONDAY...
* Sky/weather.........Mostly cloudy. A slight chance of showers in
the afternoon.
* Max temperature.....89-96...except 76-87 ridges.
* Min humidity........20-25 percent...except 24-36 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......11500 ft agl.
* Transport winds.....Northeast around 5 mph.
* Ventilation Index...Poor (25-35) increasing to fair (296-416) in
the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly cloudy. Lows 58 to 63. Highs 78 to 92.
Northwest winds 1 to 5 mph.
.WEDNESDAY...A slight chance of showers and thunderstorms. Mostly
cloudy. Lows 54 to 60. Highs 76 to 89. West winds 1 to 6 mph.
.THURSDAY...Partly cloudy with a slight chance of showers. Lows
52 to 57. Highs 75 to 88. West winds 2 to 7 mph.
.FRIDAY...Partly cloudy. Lows 49 to 55. Highs 71 to 85. West
winds 2 to 7 mph.
.SATURDAY...Partly cloudy. Lows 47 to 52. Highs 70 to 84. West
winds 2 to 7 mph.
$$
ORZ705-241115-
Southern Deschutes National Forest-
541 PM PDT Sat Aug 23 2025
.REST OF TONIGHT...
* Sky/weather.........Mostly cloudy. Hazy and areas of smoke.
* Min temperature.....52-60.
* Max humidity........37-52 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph becoming north 1
to 5 mph after midnight.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest 5 to 10 mph.
* Ventilation Index...Poor to fair (155-281) decreasing to poor
(25-46) after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy. Hazy and areas of smoke. A
slight chance of showers and thunderstorms in the afternoon.
* Max temperature.....88-93...except 79-86 ridges.
* Min humidity........19-25 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......11500 ft agl.
* Transport winds.....South around 5 mph.
* Ventilation Index...Poor (25-34) increasing to fair (206-398) in
the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Mostly cloudy. A slight chance of showers and
thunderstorms in the evening. Areas of smoke in the evening.
Hazy.
* Min temperature.....54-61.
* Max humidity........52-67 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................10 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......Near surface.
* Transport winds.....Southwest around 5 mph.
* Ventilation Index...Poor (74-164) decreasing to poor (25-37)
after midnight.
.MONDAY...
* Sky/weather.........Mostly cloudy. A slight chance of showers and
thunderstorms in the afternoon.
* Max temperature.....83-88...except 74-81 ridges.
* Min humidity........26-35 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................10 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......11500 ft agl.
* Transport winds.....East around 5 mph.
* Ventilation Index...Poor (25-29) increasing to fair to good
(348-552) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly cloudy with a slight chance of showers and
thunderstorms. Lows 52 to 59. Highs 77 to 86. Terrain driven
winds less than 5 mph.
.WEDNESDAY...A chance of showers and a slight chance of
thunderstorms. Mostly cloudy. Lows 48 to 56. Highs 76 to 84.
Terrain driven winds less than 5 mph.
.THURSDAY...Partly cloudy with a slight chance of showers and
thunderstorms. Lows 46 to 54. Highs 75 to 84. Terrain driven
winds less than 5 mph.
.FRIDAY...Partly cloudy. Lows 44 to 51. Highs 72 to 82. Terrain
driven winds less than 5 mph.
.SATURDAY...Partly cloudy. Lows 44 to 49. Highs 72 to 81. South
winds 1 to 5 mph.
$$
ORZ697-241115-
Central Blue Mountains-
541 PM PDT Sat Aug 23 2025
.REST OF TONIGHT...
* Sky/weather.........Mostly cloudy. Hazy early in the evening.
* Min temperature.....57-63.
* Max humidity........28-40 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Southeast around 5 mph shifting to the
northeast after midnight.
* Ventilation Index...Poor (60-146) decreasing to poor (25-40)
after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy. Hazy in the morning.
* Max temperature.....86-91...except 80-87 ridges.
* Min humidity........17-22 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......12000 ft agl.
* Transport winds.....Northeast around 5 mph shifting to the
southwest in the afternoon.
* Ventilation Index...Poor (25-37) increasing to poor to fair
(160-462) in the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Mostly cloudy. Hazy in the evening.
* Min temperature.....56-63.
* Max humidity........41-52 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Poor (82-162) decreasing to poor (25-54)
after midnight.
.MONDAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....81-86...except 76-83 ridges.
* Min humidity........21-26 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......12000 ft agl.
* Transport winds.....North around 5 mph.
* Ventilation Index...Poor (25-41) increasing to fair (214-422) in
the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 54 to 61. Highs 76 to 83. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 51 to 58. Highs 72 to 80. Terrain
driven winds less than 5 mph.
.THURSDAY...A chance of showers and a slight chance of
thunderstorms. Partly cloudy. Lows 48 to 54. Highs 73 to 81.
Terrain driven winds less than 5 mph.
.FRIDAY...Partly cloudy. Lows 48 to 54. Highs 73 to 81. Terrain
driven winds less than 5 mph.
.SATURDAY...Partly cloudy. Lows 47 to 52. Highs 72 to 80. Terrain
driven winds less than 5 mph.
$$
ORZ698-241115-
Southern Blue Mountains-
541 PM PDT Sat Aug 23 2025
.REST OF TONIGHT...
* Sky/weather.........Mostly cloudy. Hazy early in the evening.
* Min temperature.....58-63.
* Max humidity........30-41 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......8000 ft agl early in the evening then near
surface.
* Transport winds.....Southeast 5 to 10 mph shifting to the
northeast after midnight.
* Ventilation Index...Poor to fair (145-239) decreasing to poor
(25-44) after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy. Hazy. A slight chance of
showers and thunderstorms in the afternoon.
* Max temperature.....86-91.
* Min humidity........17-22 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......10500 ft agl.
* Transport winds.....Northeast around 5 mph shifting to the
southwest in the afternoon.
* Ventilation Index...Poor (25-39) increasing to fair to good
(354-536) in the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Mostly cloudy. A slight chance of showers and
thunderstorms in the evening.
* Min temperature.....58-63.
* Max humidity........43-53 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......Near surface.
* Transport winds.....West around 10 mph.
* Ventilation Index...Poor (96-192) decreasing to poor (25-47)
after midnight.
.MONDAY...
* Sky/weather.........Mostly cloudy. A slight chance of showers and
thunderstorms in the afternoon.
* Max temperature.....82-88.
* Min humidity........20-25 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......10000 ft agl.
* Transport winds.....Northwest around 5 mph.
* Ventilation Index...Poor (25-41) increasing to fair (203-449) in
the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 54 to 60. Highs 79 to 85. North
winds 1 to 5 mph.
.WEDNESDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 52 to 57. Highs 76 to 82. West
winds 1 to 5 mph.
.THURSDAY...A chance of showers and a slight chance of
thunderstorms. Partly cloudy. Lows 49 to 54. Highs 78 to 84. West
winds 1 to 5 mph.
.FRIDAY...Partly cloudy. Lows 49 to 54. Highs 78 to 84. Southwest
winds 1 to 6 mph.
.SATURDAY...Partly cloudy. Lows 47 to 52. Highs 77 to 83.
Southwest winds 1 to 6 mph.
$$
.8-14 DAY OUTLOOK for Sunday August 31 through Saturday September 6...
A greater chance of above normal temperatures and precipitation.
$$