Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
308
FNUS56 KPDT 101332
FWFPDT
Fire Weather Planning Forecast for NE Oregon and SE Washington
National Weather Service Pendleton OR
632 AM PDT Sun Aug 10 2025
.DISCUSSION...
Increasing heat is expected through Tuesday.
Extreme heat warnings are in effect for this afternoon through
Tuesday evening for most lower elevation areas from central Oregon
to northeast Oregon to southeast and south-central Washington.
By midweek, a trough is expected to move through the area and
cool things down and also bring breezy to windy conditions,
especially for the Cascade gaps and Columbia Basin, and enhanced
fire weather concerns focused on later Tuesday through Wednesday
at this time.
Dry weather is expected through the week.
***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.
WAZ695-110000-
East Washington South Central Cascade Mountains-
632 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....85-94...except 77-84 ridges.
* Min humidity........26-36 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming south 1 to
5 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming north 1 to 5
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......9000 ft agl.
* Transport winds.....Northeast around 5 mph shifting to the west
in the afternoon.
* Ventilation Index...Poor (27-59) increasing to poor to fair
(65-203) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....59-66...except 56-61 ridges.
* Max humidity........49-64 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 2 to 7 mph.
* Ridges/upr slopes....Northwest winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest around 10 mph.
* Ventilation Index...Poor to fair (136-332) decreasing to poor
(30-98) after midnight.
.MONDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....86-95...except 78-86 ridges.
* Min humidity........22-32 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 1 to 5 mph shifting to the
east in the afternoon.
* Ridges/upr slopes....Northwest winds 1 to 6 mph in the morning
becoming 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 (26-72) increasing to poor to fair
(87-249) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Clear. Lows 60 to 66. Highs 78 to 92. Northwest winds
2 to 7 mph.
.WEDNESDAY...Not as warm. Mostly clear. Lows 53 to 61. Highs
66 to 81. West winds 4 to 9 mph.
.THURSDAY...Partly cloudy. Lows 46 to 53. Highs 60 to 74. West
winds 5 to 11 mph.
.FRIDAY...Partly cloudy. Lows 45 to 52. Highs 60 to 74. West
winds 3 to 8 mph.
.SATURDAY...Partly cloudy. Lows 47 to 53. Highs 61 to 75. West
winds 2 to 7 mph.
$$
WAZ690-110000-
Kittitas Valley-
632 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....92-98...except 82-93 ridges.
* Min humidity........22-27 percent.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 2 to 7 mph in the morning
becoming upslope less than 5 mph.
* Ridges/upr slopes....North winds 2 to 7 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......10000 ft agl.
* Transport winds.....Northwest around 5 mph.
* Ventilation Index...Poor (51-101) increasing to poor to fair
(74-204) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....64-69.
* Max humidity........41-56 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 4 to 9 mph.
* Ridges/upr slopes....Northwest winds 4 to 9 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest around 15 mph.
* Ventilation Index...Fair (301-473) decreasing to poor (45-121)
after midnight.
.MONDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....93-100...except 82-94 ridges.
* Min humidity........19-24 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 3 to 8 mph shifting to the
east 2 to 7 mph in the afternoon.
* Ridges/upr slopes....North winds 3 to 8 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......8500 ft agl.
* Transport winds.....North 5 to 10 mph.
* Ventilation Index...Poor (46-122) increasing to fair (241-421) in
the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Clear. Lows 65 to 72. Highs 93 to 100. North winds
2 to 7 mph.
.WEDNESDAY...Clear. Lows 62 to 67. Highs 83 to 92. West winds
7 to 13 mph.
.THURSDAY...Mostly clear. Lows 54 to 60. Highs 76 to 85.
Northwest winds 8 to 14 mph.
.FRIDAY...Partly cloudy. Lows 53 to 58. Highs 77 to 85. West
winds 6 to 12 mph.
.SATURDAY...Partly cloudy. Lows 54 to 59. Highs 76 to 84. West
winds 4 to 9 mph.
$$
WAZ694-110000-
Yakama Alpine District-
632 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....89-95...except 79-90 ridges.
* Min humidity........21-30 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.....Northeast around 5 mph.
* Ventilation Index...Poor (28-66) increasing to poor to fair
(147-287) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....59-66.
* Max humidity........45-60 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph becoming
northwest 1 to 5 mph after midnight.
* 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.....Northwest around 5 mph.
* Ventilation Index...Poor (84-172) decreasing to poor (25-55)
after midnight.
.MONDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....91-98...except 81-92 ridges.
* Min humidity........18-26 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming southeast 1
to 5 mph in the afternoon.
* Ridges/upr slopes....Northwest winds 1 to 5 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......7500 ft agl.
* Transport winds.....North around 5 mph shifting to the south in
the afternoon.
* Ventilation Index...Poor (25-33) increasing to poor to fair
(133-243) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Clear. Lows 61 to 67. Highs 84 to 97. Northwest winds
2 to 7 mph.
.WEDNESDAY...Not as warm. Clear. Lows 55 to 62. Highs 73 to 86.
West winds 4 to 9 mph.
.THURSDAY...Mostly clear. Lows 47 to 54. Highs 67 to 80. West
winds 5 to 11 mph.
.FRIDAY...Partly cloudy. Lows 45 to 52. Highs 67 to 80. West
winds 3 to 8 mph.
.SATURDAY...Partly cloudy. Lows 47 to 54. Highs 67 to 80. West
winds 2 to 7 mph.
$$
ORZ691-WAZ691-110000-
Lower Columbia Basin of Oregon-Lower Columbia Basin of Washington-
632 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....93-98.
* Min humidity........19-25 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 1 to 5 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......9000 ft agl.
* Transport winds.....West around 5 mph shifting to the northeast
in the afternoon.
* Ventilation Index...Poor (25-55) increasing to fair (224-416) in
the afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....64-69.
* Max humidity........44-59 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...East winds 2 to 5 mph shifting to the
southwest after midnight.
* Ridges/upr slopes....light winds less than 5 mph becoming
northwest 2 to 7 mph after midnight.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....North around 5 mph shifting to the southwest
after midnight.
* Ventilation Index...Poor (53-173) decreasing to poor (25-48)
after midnight.
.MONDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....97-102...except 92-97 ridges.
* Min humidity........16-21 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 1 to 5 mph shifting to the
north 2 to 5 mph in the afternoon.
* Ridges/upr slopes....West winds 2 to 6 mph shifting to the
northeast 2 to 5 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......9500 ft agl.
* Transport winds.....West around 5 mph.
* Ventilation Index...Poor (25-51) increasing to poor to fair
(150-322) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Clear. Lows 65 to 70. Highs 95 to 102. Northwest winds
3 to 8 mph.
.WEDNESDAY...Clear. Lows 63 to 69. Highs 86 to 94. West winds
7 to 13 mph.
.THURSDAY...Mostly clear. Lows 54 to 61. Highs 79 to 86. West
winds 8 to 14 mph.
.FRIDAY...Mostly clear. Lows 53 to 59. Highs 79 to 85. Southwest
winds 5 to 11 mph.
.SATURDAY...Mostly clear. Lows 54 to 59. Highs 79 to 86.
Southwest winds 4 to 9 mph.
$$
ORZ692-WAZ692-110000-
Northern Blue Mountains of Oregon-Blue Mountains of Washington-
632 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....83-93...except 76-82 ridges.
* Min humidity........23-30 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 northwest 2
to 5 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......9000 ft agl.
* Transport winds.....North 5 to 10 mph.
* Ventilation Index...Poor (36-84) increasing to fair (346-476) in
the afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....58-67.
* Max humidity........47-62 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph becoming
southeast 1 to 5 mph after midnight.
* Ridges/upr slopes....light winds less than 5 mph becoming north 2
to 5 mph after midnight.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....North around 5 mph shifting to the south
after midnight.
* Ventilation Index...Poor (98-184) decreasing to poor (25-44)
after midnight.
.MONDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....89-98...except 81-87 ridges.
* Min humidity........19-25 percent.
* 20-foot winds.......
* Valleys/lwr slopes...South winds 1 to 5 mph in the morning
becoming upslope less than 5 mph.
* Ridges/upr slopes....South winds 1 to 5 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......10500 ft agl.
* Transport winds.....South around 5 mph shifting to the west in
the afternoon.
* Ventilation Index...Poor (25-50) increasing to fair (216-346) in
the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Clear. Lows 60 to 68. Highs 85 to 96. West winds 1 to
6 mph.
.WEDNESDAY...Clear. Lows 58 to 66. Highs 78 to 89. Southwest
winds 4 to 9 mph.
.THURSDAY...Mostly clear. Lows 50 to 58. Highs 70 to 81. West
winds 4 to 10 mph.
.FRIDAY...Partly cloudy. Lows 48 to 56. Highs 70 to 81. West
winds 2 to 7 mph.
.SATURDAY...Mostly clear. Lows 49 to 57. Highs 71 to 81. West
winds 2 to 7 mph.
$$
ORZ693-WAZ693-110000-
Canyon Grasslands of Wallowa County-
Southeast Washington Grande Ronde Valley-
632 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....83-92...except 76-84 ridges.
* Min humidity........21-28 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 6
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......10000 ft agl.
* Transport winds.....North 5 to 10 mph.
* Ventilation Index...Poor (30-70) increasing to fair to good
(438-586) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....56-66.
* Max humidity........52-67 percent...except 48-56 percent ridges.
* Humidity recovery...Moderate.
* 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....Northwest winds 2 to 6 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....North around 10 mph shifting to the southwest
after midnight.
* Ventilation Index...Poor to fair (163-237) decreasing to poor
(25-52) after midnight.
.MONDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....88-97...except 81-89 ridges.
* Min humidity........16-21 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....South winds 2 to 5 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......11000 ft agl.
* Transport winds.....South around 5 mph shifting to the northwest
in the afternoon.
* Ventilation Index...Poor (25-55) increasing to fair (208-298) in
the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Clear. Lows 58 to 67. Highs 88 to 98. West winds 1 to
5 mph.
.WEDNESDAY...Mostly clear. Lows 56 to 66. Highs 82 to 93. West
winds 3 to 8 mph.
.THURSDAY...Mostly clear. Lows 49 to 60. Highs 75 to 85. West
winds 4 to 9 mph.
.FRIDAY...Partly cloudy. Lows 47 to 57. Highs 75 to 85. West
winds 2 to 7 mph.
.SATURDAY...Partly cloudy. Lows 48 to 57. Highs 76 to 85. West
winds 2 to 7 mph.
$$
ORZ701-110000-
Eastern Columbia River Gorge of Oregon-
632 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....94-99.
* 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....0 percent.
* Mixing height.......7500 ft agl.
* Transport winds.....East 5 to 10 mph.
* Ventilation Index...Poor (25-68) increasing to fair (325-451) in
the afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....64-69.
* Max humidity........45-60 percent.
* Humidity recovery...Moderate.
* 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 1 to 6 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 around 5 mph.
* Ventilation Index...Poor (61-139) decreasing to poor (28-58)
after midnight.
.MONDAY...
* Sky/weather.........Sunny.
* Max temperature.....96-101.
* Min humidity........17-23 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph...except northwest 1
to 5 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.......8000 ft agl.
* Transport winds.....Southwest around 5 mph.
* Ventilation Index...Poor (25-37) increasing to poor (37-151) in
the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Clear. Lows 64 to 69. Highs 94 to 99. West winds 3 to
8 mph.
.WEDNESDAY...Not as warm. Clear. Lows 59 to 65. Highs 81 to 87.
West winds 7 to 13 mph.
.THURSDAY...Mostly clear. Lows 51 to 57. Highs 75 to 81. West
winds 7 to 13 mph.
.FRIDAY...Partly cloudy. Lows 50 to 56. Highs 75 to 81. West
winds 5 to 11 mph.
.SATURDAY...Partly cloudy. Lows 51 to 57. Highs 76 to 81. West
winds 3 to 8 mph.
$$
ORZ702-110000-
East Slopes of the Mt. Hood National Forest-
632 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....90-96...except 83-92 ridges.
* Min humidity........20-27 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.......6500 ft agl.
* Transport winds.....East around 10 mph.
* Ventilation Index...Poor (26-80) increasing to fair (284-446) in
the afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....61-69.
* Max humidity........40-54 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 (50-130) decreasing to poor (25-43)
after midnight.
.MONDAY...
* Sky/weather.........Sunny.
* Max temperature.....94-100...except 86-95 ridges.
* Min humidity........18-26 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.......7500 ft agl.
* Transport winds.....Southwest around 5 mph.
* Ventilation Index...Poor (25-35) increasing to poor to fair
(113-219) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Clear. Lows 61 to 68. Highs 84 to 97. Terrain driven
winds less than 5 mph.
.WEDNESDAY...Not as warm. Clear. Lows 55 to 63. Highs 71 to 86.
West winds 2 to 7 mph.
.THURSDAY...Mostly clear. Lows 47 to 54. Highs 65 to 80. West
winds 2 to 7 mph.
.FRIDAY...Partly cloudy. Lows 45 to 53. Highs 66 to 80. West
winds 2 to 7 mph.
.SATURDAY...Partly cloudy. Lows 47 to 54. Highs 66 to 80. West
winds 1 to 6 mph.
$$
ORZ695-110000-
Eagle Cap Wilderness-
632 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....79-90...except 69-79 ridges.
* Min humidity........23-34 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 north 3 to 6
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......9500 ft agl.
* Transport winds.....North around 10 mph.
* Ventilation Index...Poor (53-133) increasing to fair to good
(351-621) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....58-63...except 51-59 ridges.
* Max humidity........49-62 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 2 to 6 mph 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 5 to 10 mph.
* Ventilation Index...Poor to fair (141-267) decreasing to poor
(25-59) after midnight.
.MONDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....84-94...except 73-83 ridges.
* Min humidity........18-27 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.......10500 ft agl.
* Transport winds.....North around 5 mph.
* Ventilation Index...Poor (25-48) increasing to fair (222-290) in
the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Clear. Lows 55 to 64. Highs 78 to 93. Northwest winds
1 to 6 mph.
.WEDNESDAY...Mostly clear. Lows 53 to 62. Highs 73 to 88. West
winds 2 to 7 mph.
.THURSDAY...Mostly clear. Lows 47 to 56. Highs 66 to 81.
Northwest winds 3 to 8 mph.
.FRIDAY...Partly cloudy. Lows 44 to 53. Highs 66 to 81. West
winds 2 to 7 mph.
.SATURDAY...Partly cloudy. Lows 45 to 54. Highs 67 to 82. West
winds 1 to 6 mph.
$$
ORZ694-110000-
Grande Ronde Valley of Oregon-
632 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....89-94.
* Min humidity........19-24 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming north 2 to
7 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming north 3 to 7
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......8500 ft agl.
* Transport winds.....North 5 to 10 mph.
* Ventilation Index...Poor (70-102) increasing to good (531-627) in
the afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....56-61.
* Max humidity........60-72 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 3 to 8 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....Northwest winds 3 to 8 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.....North 5 to 10 mph.
* Ventilation Index...Fair (237-289) decreasing to poor (33-51)
after midnight.
.MONDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....93-98.
* 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.......9500 ft agl.
* Transport winds.....Northwest around 5 mph.
* Ventilation Index...Poor (26-34) increasing to fair (203-263) in
the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Clear. Lows 59 to 64. Highs 94 to 99. Northwest winds
1 to 5 mph.
.WEDNESDAY...Clear. Lows 58 to 63. Highs 89 to 94. West winds
2 to 7 mph.
.THURSDAY...Mostly clear. Lows 52 to 57. Highs 81 to 86.
Northwest winds 4 to 9 mph.
.FRIDAY...Partly cloudy. Lows 49 to 54. Highs 81 to 86. Northwest
winds 2 to 7 mph.
.SATURDAY...Partly cloudy. Lows 49 to 54. Highs 82 to 87.
Northwest winds 2 to 7 mph.
$$
ORZ699-110000-
Western Forested Blue Mountains-
632 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....83-89...except 77-84 ridges.
* Min humidity........21-28 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 10 mph.
* Ventilation Index...Poor (46-100) increasing to fair (341-459) in
the afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....55-62.
* Max humidity........47-61 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.....Northeast 5 to 10 mph.
* Ventilation Index...Poor to fair (132-222) decreasing to poor
(25-46) after midnight.
.MONDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....89-95...except 82-89 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....0 percent.
* Mixing height.......9500 ft agl.
* Transport winds.....East around 5 mph shifting to the northwest
in the afternoon.
* Ventilation Index...Poor (25-35) increasing to fair (226-340) in
the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Clear. Lows 57 to 64. Highs 84 to 94. Terrain driven
winds less than 5 mph.
.WEDNESDAY...Clear. Lows 55 to 61. Highs 78 to 87. West winds
2 to 7 mph.
.THURSDAY...Mostly clear. Lows 48 to 54. Highs 71 to 80. West
winds 2 to 7 mph.
.FRIDAY...Mostly clear. Lows 46 to 51. Highs 71 to 80. West winds
1 to 6 mph.
.SATURDAY...Mostly clear. Lows 47 to 52. Highs 71 to 81. West
winds 1 to 5 mph.
$$
ORZ696-110000-
John Day Valley-
632 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....87-95...except 82-87 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 becoming north 2 to 5
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......9000 ft agl.
* Transport winds.....Northeast around 5 mph.
* Ventilation Index...Poor (47-83) increasing to fair (328-430) in
the afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....59-65.
* Max humidity........45-58 percent.
* Humidity recovery...Moderate.
* 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.....Northeast 5 to 10 mph.
* Ventilation Index...Poor to fair (183-265) decreasing to poor
(26-46) after midnight.
.MONDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....91-99...except 87-92 ridges.
* Min humidity........12-17 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.......10500 ft agl.
* Transport winds.....Southeast around 5 mph shifting to the west
in the afternoon.
* Ventilation Index...Poor (25-49) increasing to poor to fair
(163-351) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Clear. Lows 61 to 66. Highs 91 to 99. North winds 1 to
6 mph.
.WEDNESDAY...Clear. Lows 58 to 63. Highs 84 to 92. West winds
2 to 7 mph.
.THURSDAY...Mostly clear. Lows 51 to 56. Highs 77 to 86. West
winds 3 to 8 mph.
.FRIDAY...Mostly clear. Lows 49 to 54. Highs 77 to 85. West winds
2 to 7 mph.
.SATURDAY...Mostly clear. Lows 50 to 55. Highs 77 to 86. West
winds 2 to 7 mph.
$$
ORZ700-110000-
Central Mountains of Oregon-
632 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....88-95...except 81-87 ridges.
* Min humidity........14-19 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.....East around 5 mph.
* Ventilation Index...Poor (31-69) increasing to fair (289-401) in
the afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....55-64.
* Max humidity........44-57 percent.
* Humidity recovery...Moderate.
* 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....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northeast 5 to 10 mph.
* Ventilation Index...Fair (206-296) decreasing to poor (25-38)
after midnight.
.MONDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....93-99...except 86-92 ridges.
* Min humidity........11-16 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.......10000 ft agl.
* Transport winds.....South around 5 mph shifting to the west in
the afternoon.
* Ventilation Index...Poor (25-37) increasing to fair (212-388) in
the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Clear. Lows 56 to 64. Highs 92 to 98. Northwest winds
2 to 7 mph.
.WEDNESDAY...Clear. Lows 53 to 61. Highs 85 to 91. West winds
4 to 9 mph.
.THURSDAY...Mostly clear. Lows 46 to 53. Highs 78 to 84. West
winds 4 to 10 mph.
.FRIDAY...Mostly clear. Lows 44 to 51. Highs 77 to 84. West winds
2 to 7 mph.
.SATURDAY...Mostly clear. Lows 45 to 52. Highs 78 to 83. West
winds 2 to 7 mph.
$$
ORZ703-110000-
Warm Springs Reservation-
632 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....91-98...except 80-89 ridges.
* Min humidity........17-23 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 becoming east 2 to 5
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......8000 ft agl.
* Transport winds.....East 5 to 10 mph.
* Ventilation Index...Poor (25-61) increasing to fair (389-491) in
the afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....63-68.
* Max humidity........42-51 percent.
* Humidity recovery...Moderate.
* 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....Northeast winds 1 to 5 mph shifting to the
south after midnight.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....North 5 to 10 mph.
* Ventilation Index...Poor to fair (145-259) decreasing to poor
(25-41) after midnight.
.MONDAY...
* Sky/weather.........Sunny.
* Max temperature.....96-103...except 84-94 ridges.
* Min humidity........14-21 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....Southwest winds 1 to 5 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......9000 ft agl.
* Transport winds.....Southwest around 5 mph.
* Ventilation Index...Poor (25-35) increasing to poor to fair
(58-200) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Clear. Lows 63 to 68. Highs 89 to 100. Northwest winds
2 to 7 mph.
.WEDNESDAY...Clear. Lows 58 to 63. Highs 78 to 92. West winds
4 to 10 mph.
.THURSDAY...Mostly clear. Lows 51 to 56. Highs 73 to 86. West
winds 6 to 12 mph.
.FRIDAY...Mostly clear. Lows 49 to 54. Highs 73 to 85. West winds
4 to 9 mph.
.SATURDAY...Mostly clear. Lows 50 to 55. Highs 73 to 85. West
winds 3 to 8 mph.
$$
ORZ704-110000-
Northern Deschutes National Forest-
632 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....90-97...except 78-87 ridges.
* Min humidity........18-25 percent.
* 20-foot winds.......
* Valleys/lwr slopes...East winds 1 to 5 mph.
* Ridges/upr slopes....East winds 1 to 6 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......7500 ft agl.
* Transport winds.....East 5 to 10 mph.
* Ventilation Index...Poor (26-80) increasing to fair (309-411) in
the afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....58-63.
* Max humidity........43-51 percent.
* Humidity recovery...Moderate...except Poor ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....Northeast winds 2 to 5 mph shifting to the
west 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 to fair (149-243) decreasing to poor
(25-44) after midnight.
.MONDAY...
* Sky/weather.........Sunny.
* Max temperature.....95-101...except 82-92 ridges.
* Min humidity........16-24 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....Southwest winds 1 to 5 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......10000 ft agl.
* Transport winds.....West around 5 mph.
* Ventilation Index...Poor (25-38) increasing to fair (245-365) in
the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Clear. Lows 58 to 63. Highs 84 to 97. West winds 2 to
7 mph.
.WEDNESDAY...Clear. Lows 53 to 58. Highs 75 to 89. West winds
4 to 9 mph.
.THURSDAY...Mostly clear. Lows 47 to 52. Highs 70 to 83. West
winds 4 to 10 mph.
.FRIDAY...Mostly clear. Lows 44 to 50. Highs 69 to 82. West winds
2 to 7 mph.
.SATURDAY...Partly cloudy. Lows 45 to 51. Highs 69 to 82. West
winds 2 to 7 mph.
$$
ORZ705-110000-
Southern Deschutes National Forest-
632 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....87-92...except 78-85 ridges.
* Min humidity........16-22 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.......8000 ft agl.
* Transport winds.....East 5 to 10 mph.
* Ventilation Index...Poor (41-87) increasing to fair (299-395) in
the afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....51-59.
* Max humidity........47-61 percent.
* Humidity recovery...Moderate...except Poor ridges.
* 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.....Northeast 5 to 10 mph.
* Ventilation Index...Poor to fair (178-266) decreasing to poor
(25-42) after midnight.
.MONDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....91-96...except 81-89 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.......10000 ft agl.
* Transport winds.....Southwest around 5 mph.
* Ventilation Index...Poor (25-33) increasing to fair (335-443) in
the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 52 to 59. Highs 84 to 94. West
winds 1 to 5 mph.
.WEDNESDAY...Clear. Lows 48 to 54. Highs 77 to 87. West winds
2 to 7 mph.
.THURSDAY...Mostly clear. Lows 42 to 48. Highs 72 to 82. West
winds 2 to 7 mph.
.FRIDAY...Mostly clear. Lows 40 to 46. Highs 71 to 81. West winds
2 to 7 mph.
.SATURDAY...Mostly clear. Lows 42 to 47. Highs 70 to 81. West
winds 1 to 6 mph.
$$
ORZ697-110000-
Central Blue Mountains-
632 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....83-88...except 77-84 ridges.
* Min humidity........19-24 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.......8000 ft agl.
* Transport winds.....Northeast around 5 mph.
* Ventilation Index...Poor (36-88) increasing to fair (275-371) in
the afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....52-59.
* Max humidity........50-64 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.....North around 5 mph.
* Ventilation Index...Poor to fair (147-209) decreasing to poor
(25-45) after midnight.
.MONDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....88-93...except 82-89 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.......9500 ft agl.
* Transport winds.....West around 5 mph.
* Ventilation Index...Poor (25-35) increasing to fair (312-390) in
the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 55 to 61. Highs 85 to 92. Northwest
winds 1 to 5 mph.
.WEDNESDAY...Clear. Lows 52 to 58. Highs 80 to 87. West winds
2 to 7 mph.
.THURSDAY...Mostly clear. Lows 46 to 52. Highs 73 to 81.
Northwest winds 2 to 7 mph.
.FRIDAY...Mostly clear. Lows 44 to 50. Highs 73 to 80. West winds
2 to 7 mph.
.SATURDAY...Mostly clear. Lows 45 to 51. Highs 73 to 80. West
winds 1 to 6 mph.
$$
ORZ698-110000-
Southern Blue Mountains-
632 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....84-89.
* Min humidity........15-20 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......8500 ft agl.
* Transport winds.....Northeast around 5 mph.
* Ventilation Index...Poor (52-90) increasing to fair (258-350) in
the afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....54-59.
* Max humidity........49-58 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....North around 5 mph.
* Ventilation Index...Poor to fair (132-202) decreasing to poor
(25-49) after midnight.
.MONDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....89-94.
* Min humidity........11-16 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......9500 ft agl.
* Transport winds.....South around 5 mph shifting to the west in
the afternoon.
* Ventilation Index...Poor (25-31) increasing to fair (300-376) in
the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 56 to 61. Highs 90 to 96. Northwest
winds 2 to 7 mph.
.WEDNESDAY...Mostly clear. Lows 53 to 59. Highs 84 to 91. West
winds 2 to 7 mph.
.THURSDAY...Mostly clear. Lows 47 to 53. Highs 78 to 85.
Northwest winds 3 to 8 mph.
.FRIDAY...Mostly clear. Lows 45 to 51. Highs 77 to 84. West winds
2 to 7 mph.
.SATURDAY...Mostly clear. Lows 47 to 52. Highs 78 to 84. West
winds 2 to 7 mph.
$$
.8-14 DAY OUTLOOK for Sunday August 17 through Saturday August 23...
A greater chance of near normal temperatures and near to below
normal precipitation.
$$