Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
919
FNUS56 KPDT 122120
FWFPDT
Fire Weather Planning Forecast for NE Oregon and SE Washington
National Weather Service Pendleton OR
220 PM PDT Sat Sep 12 2026
.DISCUSSION...
Rain will begin to overspread the area from west to east as we
head into the evening hours. It may take a few hours for the
column to become saturated enough for rain to reach the ground,
with rains becoming more widespread overnight. Most likely
rainfall amounts will be in the 0.2 to 1" range through Sunday
afternoon, with the highest values over our northern zones and
higher elevation. Additionally, winds will become gusty overnight,
with gusts as high as 40 mph.
***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 transport wind
multiplied by the mixing height in 100`s of ft.
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.
Categories: low (< 200), moderate (200-500),
high (500-700), and very high (> 700).
-Note: Max transport winds may not occur
at the same time as max mixing height. ***
WAZ695-131130-
East Washington South Central Cascade Mountains-
220 PM PDT Sat Sep 12 2026
.TONIGHT...
* Sky/weather.........Cloudy. Showers.
* Min temperature.....41-46...except 36-42 ridges.
* Max humidity........95-100 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 5 to 11 mph.
* Ridges/upr slopes....Northwest winds 5 to 11 mph.
* CWR.................100 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......500 ft agl.
* Transport winds.....Northwest 10 to 15 mph.
* Ventilation Index...Low (37-139) increasing to low (95-163) after
midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy. Showers in the morning, then
showers likely in the afternoon.
* Max temperature.....49-55...except 42-48 ridges.
* Min humidity........75-90 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 6 to 12 mph.
* Ridges/upr slopes....West winds 6 to 12 mph.
* CWR.................100 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......3000 ft agl.
* Transport winds.....West around 20 mph.
* Ventilation Index...Low to moderate (189-267) increasing to
moderate (246-378) in the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
chance of showers in the evening.
* Min temperature.....38-44.
* Max humidity........82-97 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 5 to 11 mph.
* Ridges/upr slopes....West winds 6 to 12 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....West around 15 mph.
* Ventilation Index...Low to moderate (179-265) decreasing to low
(50-150) after midnight.
.MONDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....58-64...except 50-57 ridges.
* Min humidity........49-64 percent...except 60-75 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 3 to 8 mph.
* Ridges/upr slopes....West winds 5 to 11 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......4500 ft agl.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Low (63-131) increasing to low to moderate
(164-280) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Partly cloudy with a slight chance of showers. Lows
38 to 44. Highs 54 to 66. Northwest winds up to 5 mph.
.WEDNESDAY...Mostly clear. Lows 40 to 45. Highs 61 to 73.
Northeast winds up to 5 mph.
.THURSDAY...Clear. Lows 42 to 48. Highs 65 to 76. Terrain driven
winds less than 5 mph.
.FRIDAY...Mostly clear. Lows 46 to 51. Highs 67 to 78. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 47 to 52. Highs 64 to 76. Terrain
driven winds less than 5 mph.
$$
WAZ690-131130-
Kittitas Valley-
220 PM PDT Sat Sep 12 2026
.TONIGHT...
* Sky/weather.........Cloudy. Showers.
* Min temperature.....45-50.
* Max humidity........93-100 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 7 to 13 mph.
* Ridges/upr slopes....Northwest winds 8 to 14 mph.
* CWR.................100 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......500 ft agl.
* Transport winds.....Northwest 10 to 15 mph.
* Ventilation Index...Low (99-179) increasing to low (116-182)
after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy. Showers.
* Max temperature.....54-60...except 47-54 ridges.
* Min humidity........74-88 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 9 to 15 mph.
* Ridges/upr slopes....West winds 9 to 15 mph.
* CWR.................90 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......2500 ft agl.
* Transport winds.....West 15 to 20 mph.
* Ventilation Index...Low to moderate (147-237) increasing to
moderate (201-309) in the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Mostly cloudy then becoming mostly clear. A
slight chance of showers in the evening.
* Min temperature.....43-48.
* Max humidity........82-97 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 4 to 10 mph.
* Ridges/upr slopes....West winds 4 to 10 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....West around 10 mph.
* Ventilation Index...Low (71-145) decreasing to low (32-56) after
midnight.
.MONDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....62-68...except 55-62 ridges.
* Min humidity........54-64 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 2 to 7 mph.
* Ridges/upr slopes....West winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......5000 ft agl.
* Transport winds.....West around 10 mph.
* Ventilation Index...Low (33-85) increasing to low to moderate
(157-335) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Partly cloudy. Lows 44 to 49. Highs 62 to 69. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Mostly clear. Lows 45 to 51. Highs 67 to 74. Terrain
driven winds less than 5 mph.
.THURSDAY...Clear. Lows 47 to 52. Highs 70 to 76. Terrain driven
winds less than 5 mph.
.FRIDAY...Mostly clear. Lows 49 to 54. Highs 73 to 79. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 51 to 56. Highs 73 to 79. Terrain
driven winds less than 5 mph.
$$
WAZ694-131130-
Yakama Alpine District-
220 PM PDT Sat Sep 12 2026
.TONIGHT...
* Sky/weather.........Cloudy. Showers.
* Min temperature.....40-47...except 37-42 ridges.
* Max humidity........93-100 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 6 to 12 mph.
* Ridges/upr slopes....West winds 6 to 12 mph.
* CWR.................80 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......500 ft agl.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Low (87-191) decreasing to low (76-158) after
midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy. Showers in the morning, then
showers likely in the afternoon.
* Max temperature.....52-59...except 43-52 ridges.
* Min humidity........74-89 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 8 to 14 mph with gusts up to 30
mph.
* Ridges/upr slopes....West winds 8 to 14 mph.
* CWR.................70 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......2500 ft agl.
* Transport winds.....West around 20 mph.
* Ventilation Index...Low to moderate (152-268) increasing to
moderate (313-423) in the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
slight chance of showers in the evening.
* Min temperature.....37-45.
* Max humidity........84-99 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 5 to 11 mph.
* Ridges/upr slopes....West winds 5 to 11 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Low to moderate (130-224) decreasing to low
(34-70) after midnight.
.MONDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....63-69...except 54-63 ridges.
* Min humidity........47-57 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 2 to 7 mph.
* Ridges/upr slopes....West winds 4 to 9 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......4000 ft agl.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Low (35-75) increasing to low to moderate
(115-247) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Partly cloudy. Lows 38 to 46. Highs 57 to 70. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Mostly clear. Lows 40 to 48. Highs 62 to 75.
Northeast winds up to 5 mph.
.THURSDAY...Clear. Lows 43 to 49. Highs 67 to 78. Terrain driven
winds less than 5 mph.
.FRIDAY...Mostly clear. Lows 45 to 52. Highs 70 to 81. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 47 to 54. Highs 68 to 79. Terrain
driven winds less than 5 mph.
$$
ORZ691-WAZ691-131130-
Lower Columbia Basin of Oregon-Lower Columbia Basin of Washington-
220 PM PDT Sat Sep 12 2026
.TONIGHT...
* Sky/weather.........Mostly cloudy. A slight chance of
thunderstorms in the evening. Showers.
* Min temperature.....46-51.
* Max humidity........85-100 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 10 to 16 mph with gusts up to 30
mph.
* Ridges/upr slopes....West winds 11 to 17 mph.
* CWR.................70 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......500 ft agl.
* Transport winds.....West 15 to 20 mph.
* Ventilation Index...Low to moderate (112-282) decreasing to low
to moderate (120-222) after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy. A chance of showers in the
morning, then showers likely in the afternoon.
* Max temperature.....59-64...except 52-59 ridges.
* Min humidity........61-76 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 12 to 18 mph with gusts up
to 30 mph.
* Ridges/upr slopes....Southwest winds 12 to 18 mph.
* CWR.................30 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......5500 ft agl.
* Transport winds.....Southwest 20 to 25 mph.
* Ventilation Index...Moderate (209-381) increasing to moderate to
very high (411-857) in the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
slight chance of showers in the evening.
* Min temperature.....44-49.
* Max humidity........82-97 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 8 to 14 mph with gusts up to
25 mph.
* Ridges/upr slopes....Southwest winds 8 to 14 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....Southwest around 15 mph.
* Ventilation Index...Low to moderate (108-274) decreasing to low
(38-82) after midnight.
.MONDAY...
* Sky/weather.........Partly cloudy then becoming sunny.
* Max temperature.....66-72...except 60-67 ridges.
* Min humidity........36-51 percent...except 48-60 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 4 to 9 mph.
* Ridges/upr slopes....Southwest winds 4 to 9 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......5000 ft agl.
* Transport winds.....Southwest around 10 mph.
* Ventilation Index...Low (40-124) increasing to low to moderate
(199-455) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Partly cloudy. Lows 45 to 50. Highs 66 to 72. West
winds up to 5 mph.
.WEDNESDAY...Mostly clear. Lows 45 to 50. Highs 70 to 77. North
winds 1 to 6 mph.
.THURSDAY...Clear. Lows 47 to 52. Highs 75 to 80. Northeast winds
2 to 7 mph.
.FRIDAY...Mostly clear. Lows 49 to 54. Highs 78 to 83. Northeast
winds up to 5 mph.
.SATURDAY...Mostly clear. Lows 51 to 56. Highs 77 to 83. West
winds 1 to 5 mph.
$$
ORZ692-WAZ692-131130-
Northern Blue Mountains of Oregon-Blue Mountains of Washington-
220 PM PDT Sat Sep 12 2026
.TONIGHT...
* Sky/weather.........Mostly cloudy. Showers likely in the evening.
A slight chance of thunderstorms. Showers after midnight.
* Min temperature.....40-48.
* Max humidity........84-99 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 6 to 12 mph.
* Ridges/upr slopes....West winds 7 to 13 mph.
* CWR.................80 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......500 ft agl.
* Transport winds.....Northeast around 10 mph increasing to west
around 20 mph after midnight.
* Ventilation Index...Low (63-131) increasing to low to moderate
(142-244) after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy. A chance of showers in the
morning, then showers in the afternoon.
* Max temperature.....51-60...except 45-51 ridges.
* Min humidity........58-73 percent...except 71-86 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 7 to 13 mph with gusts up to
25 mph.
* Ridges/upr slopes....Southwest winds 7 to 13 mph.
* CWR.................50 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......5500 ft agl.
* Transport winds.....Southwest 20 to 25 mph.
* Ventilation Index...Moderate (316-410) increasing to high to very
high (650-862) in the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Mostly cloudy. Showers likely in the evening,
then a chance of showers after midnight.
* Min temperature.....38-46.
* Max humidity........84-99 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 5 to 11 mph.
* Ridges/upr slopes....Southwest winds 5 to 11 mph.
* CWR.................40 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......500 ft agl.
* Transport winds.....West 15 to 20 mph.
* Ventilation Index...Moderate (277-353) decreasing to low
(100-170) after midnight.
.MONDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....60-68...except 54-60 ridges.
* Min humidity........39-53 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 3 to 8 mph.
* Ridges/upr slopes....Southwest winds 4 to 9 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......6000 ft agl.
* Transport winds.....Southwest around 10 mph.
* Ventilation Index...Low (96-154) increasing to moderate (306-392)
in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Partly cloudy. Lows 38 to 45. Highs 58 to 68. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Mostly clear. Lows 38 to 46. Highs 62 to 72. Terrain
driven winds less than 5 mph.
.THURSDAY...Clear. Lows 41 to 48. Highs 68 to 78. Terrain driven
winds less than 5 mph.
.FRIDAY...Mostly clear. Lows 44 to 51. Highs 73 to 82. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 47 to 55. Highs 72 to 81. Terrain
driven winds less than 5 mph.
$$
ORZ693-WAZ693-131130-
Canyon Grasslands of Wallowa County-
Southeast Washington Grande Ronde Valley-
220 PM PDT Sat Sep 12 2026
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy. A
chance of showers in the evening, then showers and a slight
chance of thunderstorms after midnight.
* Min temperature.....41-49.
* Max humidity........81-96 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 4 to 9 mph shifting to the west
4 to 10 mph after midnight.
* Ridges/upr slopes....Southwest winds 6 to 12 mph.
* CWR.................60 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......500 ft agl.
* Transport winds.....Southeast around 10 mph shifting to the west
after midnight.
* Ventilation Index...Low (109-173) decreasing to low (91-163)
after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy. Showers likely. A slight
chance of thunderstorms in the afternoon.
* Max temperature.....54-64...except 50-57 ridges.
* Min humidity........43-58 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 4 to 10 mph.
* Ridges/upr slopes....Southwest winds 5 to 11 mph.
* CWR.................20 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......6000 ft agl.
* Transport winds.....Southwest 15 to 20 mph.
* Ventilation Index...Low to moderate (169-375) increasing to high
to very high (599-981) in the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Mostly cloudy. A chance of showers.
* Min temperature.....37-47.
* Max humidity........80-95 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 4 to 10 mph.
* Ridges/upr slopes....Southwest winds 4 to 10 mph.
* CWR.................10 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......500 ft agl.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Moderate (234-424) decreasing to low to
moderate (100-248) after midnight.
.MONDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....62-72...except 57-64 ridges.
* Min humidity........31-40 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 2 to 7 mph in the morning
becoming upslope less than 5 mph.
* Ridges/upr slopes....Southwest winds 2 to 7 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......6500 ft agl.
* Transport winds.....Southwest around 10 mph.
* Ventilation Index...Low (63-171) increasing to moderate (309-401)
in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Partly cloudy. Lows 37 to 46. Highs 63 to 72. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Mostly clear. Lows 37 to 46. Highs 64 to 73. North
winds 1 to 6 mph.
.THURSDAY...Clear. Lows 39 to 48. Highs 71 to 80. East winds up
to 5 mph.
.FRIDAY...Mostly clear. Lows 43 to 52. Highs 76 to 84. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 45 to 55. Highs 75 to 84. South
winds up to 5 mph.
$$
ORZ701-131130-
Eastern Columbia River Gorge of Oregon-
220 PM PDT Sat Sep 12 2026
.TONIGHT...
* Sky/weather.........Mostly cloudy. Showers in the evening, then a
chance of showers after midnight.
* Min temperature.....43-50.
* Max humidity........85-100 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 8 to 14 mph...except west 9 to 15
mph in the eastern Columbia River Gorge. Gusts to 25 mph
after midnight. In the eastern Columbia River Gorge, gusts to
30 mph after midnight.
* Ridges/upr slopes....West winds 6 to 12 mph.
* CWR.................90 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......500 ft agl.
* Transport winds.....West around 15 mph.
* Ventilation Index...Low (100-196) decreasing to low (51-97) after
midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy. A chance of showers.
* Max temperature.....61-66...except 56-62 ridges.
* Min humidity........61-76 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 9 to 15 mph...except west 10 to
16 mph with gusts up to 30 mph in the eastern Columbia River
Gorge.
* Ridges/upr slopes....West winds 8 to 14 mph.
* CWR.................0 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......4000 ft agl.
* Transport winds.....West 15 to 20 mph.
* Ventilation Index...Low to moderate (127-225) increasing to
moderate to high (456-674) in the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....42-50.
* Max humidity........84-99 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 4 to 10 mph...except west 5 to 11
mph in the eastern Columbia River Gorge.
* Ridges/upr slopes....West winds 4 to 9 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Low to moderate (141-251) decreasing to low
(33-53) after midnight.
.MONDAY...
* Sky/weather.........Partly cloudy then becoming sunny.
* Max temperature.....69-74...except 64-70 ridges.
* Min humidity........38-53 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 2 to 7 mph...except west 3 to 8
mph in the eastern Columbia River Gorge.
* Ridges/upr slopes....West winds 1 to 6 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......5000 ft agl.
* Transport winds.....West around 10 mph.
* Ventilation Index...Low (32-98) increasing to moderate (239-409)
in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Partly cloudy. Lows 43 to 48. Highs 69 to 74. West
winds 1 to 6 mph.
.WEDNESDAY...Mostly clear. Lows 45 to 51. Highs 73 to 78.
Northeast winds up to 5 mph.
.THURSDAY...Clear. Lows 47 to 53. Highs 77 to 82. East winds 1 to
6 mph.
.FRIDAY...Mostly clear. Lows 49 to 54. Highs 80 to 85. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 51 to 56. Highs 77 to 82. Terrain
driven winds less than 5 mph.
$$
ORZ702-131130-
East Slopes of the Mt. Hood National Forest-
220 PM PDT Sat Sep 12 2026
.TONIGHT...
* Sky/weather.........Mostly cloudy. Showers in the evening, then a
chance of showers after midnight.
* Min temperature.....37-44.
* Max humidity........85-100 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 4 to 9 mph.
* Ridges/upr slopes....West winds 4 to 9 mph.
* CWR.................90 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......500 ft agl.
* Transport winds.....West around 15 mph.
* Ventilation Index...Low (124-174) decreasing to low (72-160)
after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy. A chance of showers.
* Max temperature.....53-62...except 47-56 ridges.
* Min humidity........57-72 percent...except 70-85 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 6 to 12 mph.
* Ridges/upr slopes....West winds 5 to 11 mph.
* CWR.................20 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......3500 ft agl.
* Transport winds.....West 20 to 25 mph.
* Ventilation Index...Low to moderate (164-248) increasing to
moderate to high (458-654) in the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
slight chance of showers in the evening.
* Min temperature.....38-44.
* Max humidity........84-99 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 2 to 7 mph.
* Ridges/upr slopes....West winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....West around 20 mph decreasing to around 10
mph after midnight.
* Ventilation Index...Low to moderate (173-279) decreasing to low
(36-82) after midnight.
.MONDAY...
* Sky/weather.........Partly cloudy then becoming sunny.
* Max temperature.....64-71...except 58-67 ridges.
* Min humidity........36-51 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.......4500 ft agl.
* Transport winds.....West around 10 mph.
* Ventilation Index...Low (41-71) increasing to moderate (209-287)
in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Partly cloudy. Lows 37 to 44. Highs 58 to 70. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Mostly clear. Lows 41 to 47. Highs 62 to 73. Terrain
driven winds less than 5 mph.
.THURSDAY...Clear. Lows 44 to 50. Highs 68 to 79. Terrain driven
winds less than 5 mph.
.FRIDAY...Mostly clear. Lows 48 to 53. Highs 71 to 82. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 49 to 55. Highs 68 to 80. Terrain
driven winds less than 5 mph.
$$
ORZ695-131130-
Eagle Cap Wilderness-
220 PM PDT Sat Sep 12 2026
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy. A
chance of showers in the evening, then showers likely and a
slight chance of thunderstorms after midnight.
* Min temperature.....40-46...except 35-42 ridges.
* Max humidity........82-94 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Northeast winds 4 to 9 mph shifting to the
west 5 to 11 mph after midnight.
* Ridges/upr slopes....Southwest winds 5 to 11 mph.
* CWR.................50 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......500 ft agl.
* Transport winds.....Southeast around 10 mph shifting to the west
after midnight.
* Ventilation Index...Low to moderate (108-206) decreasing to low
(50-136) after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy. A chance of rain and snow
showers in the morning, then showers, snow showers likely and a
slight chance of thunderstorms in the afternoon.
* Max temperature.....50-62...except 41-52 ridges.
* Min humidity........44-59 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 5 to 11 mph.
* Ridges/upr slopes....Southwest winds 5 to 11 mph.
* CWR.................10 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......7500 ft agl.
* Transport winds.....Southwest around 10 mph increasing to around
20 mph in the afternoon.
* Ventilation Index...Low to moderate (132-264) increasing to high
to very high (610-902) in the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Mostly cloudy. Showers likely in the evening.
A chance of snow showers. A chance of showers after midnight.
* Min temperature.....37-43...except 31-37 ridges.
* Max humidity........83-98 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 2 to 7 mph.
* Ridges/upr slopes....West winds 2 to 7 mph.
* CWR.................10 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Low to moderate (199-291) decreasing to low
(44-148) after midnight.
.MONDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....59-68...except 49-58 ridges.
* Min humidity........33-47 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 1 to 6 mph in the morning
becoming upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph becoming west 2 to 5
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......5500 ft agl.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Low (25-83) increasing to moderate (244-336)
in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 34 to 42. Highs 55 to 69. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Mostly clear. Lows 34 to 43. Highs 57 to 71. North
winds 2 to 7 mph.
.THURSDAY...Mostly clear. Lows 37 to 45. Highs 62 to 76.
Northwest winds 2 to 7 mph.
.FRIDAY...Mostly clear. Lows 42 to 49. Highs 65 to 80. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 45 to 53. Highs 65 to 80. South
winds 1 to 6 mph.
$$
ORZ694-131130-
Grande Ronde Valley of Oregon-
220 PM PDT Sat Sep 12 2026
.TONIGHT...
* Sky/weather.........Mostly cloudy. Showers likely and a slight
chance of thunderstorms.
* Min temperature.....42-47.
* Max humidity........93-100 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 8 to 14 mph with gusts up to
30 mph.
* Ridges/upr slopes....Northwest winds 8 to 14 mph.
* CWR.................70 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......500 ft agl.
* Transport winds.....West 15 to 20 mph.
* Ventilation Index...Low (72-182) increasing to low to moderate
(171-239) after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy. A chance of showers.
* Max temperature.....59-64.
* Min humidity........47-57 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 4 to 9 mph.
* Ridges/upr slopes....West winds 4 to 9 mph.
* CWR.................10 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......6000 ft agl.
* Transport winds.....West around 10 mph increasing to around 20
mph in the afternoon.
* Ventilation Index...Low to moderate (116-270) increasing to high
to very high (647-903) in the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
chance of showers.
* Min temperature.....38-43.
* Max humidity........92-100 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 3 to 8 mph.
* Ridges/upr slopes....West winds 3 to 8 mph.
* CWR.................10 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Moderate (228-310) decreasing to low (70-120)
after midnight.
.MONDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....66-71.
* Min humidity........34-39 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.......5500 ft agl.
* Transport winds.....Southwest 5 to 10 mph.
* Ventilation Index...Low (27-59) increasing to moderate (219-333)
in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 38 to 43. Highs 69 to 74. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Mostly clear. Lows 38 to 43. Highs 71 to 76.
Northwest winds 2 to 7 mph.
.THURSDAY...Clear. Lows 40 to 45. Highs 76 to 81. Northwest winds
2 to 7 mph.
.FRIDAY...Mostly clear. Lows 43 to 48. Highs 80 to 85. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 46 to 51. Highs 80 to 85. Terrain
driven winds less than 5 mph.
$$
ORZ699-131130-
Western Forested Blue Mountains-
220 PM PDT Sat Sep 12 2026
.TONIGHT...
* Sky/weather.........Mostly cloudy. Showers likely and a slight
chance of thunderstorms in the evening, then a chance of showers
after midnight.
* Min temperature.....36-42.
* Max humidity........85-100 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 5 to 11 mph.
* Ridges/upr slopes....West winds 5 to 11 mph.
* CWR.................60 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......500 ft agl.
* Transport winds.....West around 15 mph.
* Ventilation Index...Low to moderate (124-292) decreasing to low
to moderate (146-232) after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy. A chance of showers.
* Max temperature.....52-58...except 46-52 ridges.
* Min humidity........50-65 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 5 to 11 mph.
* Ridges/upr slopes....West winds 5 to 11 mph.
* CWR.................10 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......6000 ft agl.
* Transport winds.....West 15 to 20 mph.
* Ventilation Index...Moderate (259-363) increasing to very high
(703-893) in the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
chance of showers in the evening. A slight chance of showers
after midnight.
* Min temperature.....34-40.
* Max humidity........85-100 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 2 to 7 mph.
* Ridges/upr slopes....West winds 3 to 8 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Moderate (312-382) decreasing to low (62-136)
after midnight.
.MONDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....61-67...except 55-62 ridges.
* Min humidity........28-41 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.......6000 ft agl.
* Transport winds.....West around 10 mph.
* Ventilation Index...Low (32-70) increasing to moderate (297-379)
in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 36 to 41. Highs 59 to 68. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Mostly clear. Lows 36 to 41. Highs 61 to 70. North
winds up to 5 mph.
.THURSDAY...Clear. Lows 39 to 44. Highs 69 to 77. Terrain driven
winds less than 5 mph.
.FRIDAY...Mostly clear. Lows 43 to 49. Highs 73 to 82. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 46 to 52. Highs 72 to 81. Terrain
driven winds less than 5 mph.
$$
ORZ696-131130-
John Day Valley-
220 PM PDT Sat Sep 12 2026
.TONIGHT...
* Sky/weather.........Mostly cloudy. A slight chance of
thunderstorms in the evening. A chance of showers.
* Min temperature.....40-46.
* Max humidity........80-95 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 8 to 14 mph with gusts up to 25
mph.
* Ridges/upr slopes....West winds 8 to 14 mph.
* CWR.................70 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......500 ft agl.
* Transport winds.....West around 15 mph.
* Ventilation Index...Moderate (249-361) decreasing to low to
moderate (170-242) after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy. A slight chance of showers in
the morning, then a chance of showers in the afternoon.
* Max temperature.....54-62...except 49-54 ridges.
* Min humidity........45-56 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 6 to 12 mph.
* Ridges/upr slopes....West winds 6 to 12 mph.
* CWR.................0 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......6000 ft agl.
* Transport winds.....West 15 to 20 mph.
* Ventilation Index...Moderate (243-305) increasing to very high
(804-954) in the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
slight chance of showers in the evening.
* Min temperature.....36-42.
* Max humidity........79-94 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 3 to 8 mph.
* Ridges/upr slopes....Southwest winds 3 to 8 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Moderate (273-345) decreasing to low (25-49)
after midnight.
.MONDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....63-70...except 58-63 ridges.
* Min humidity........25-32 percent.
* 20-foot winds.......
* Valleys/lwr slopes...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.......5500 ft agl.
* Transport winds.....Southwest 5 to 10 mph.
* Ventilation Index...Low (25-33) increasing to moderate (249-299)
in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 38 to 44. Highs 64 to 73. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Mostly clear. Lows 39 to 45. Highs 66 to 75. North
winds 1 to 6 mph.
.THURSDAY...Clear. Lows 41 to 47. Highs 74 to 83. East winds up
to 5 mph.
.FRIDAY...Mostly clear. Lows 46 to 51. Highs 78 to 87. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 48 to 53. Highs 77 to 86. Terrain
driven winds less than 5 mph.
$$
ORZ700-131130-
Central Mountains of Oregon-
220 PM PDT Sat Sep 12 2026
.TONIGHT...
* Sky/weather.........Mostly cloudy. Showers and a slight chance of
thunderstorms in the evening, then a chance of showers after
midnight.
* Min temperature.....33-42.
* Max humidity........84-96 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 8 to 14 mph with gusts up to 25
mph.
* Ridges/upr slopes....West winds 8 to 14 mph.
* CWR.................70 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......500 ft agl.
* Transport winds.....West around 15 mph.
* Ventilation Index...Moderate (244-470) decreasing to low to
moderate (128-266) after midnight.
.SUNDAY...
* Sky/weather.........Partly cloudy then becoming mostly cloudy. A
slight chance of showers in the afternoon.
* Max temperature.....55-61...except 47-52 ridges.
* Min humidity........46-55 percent...except 52-67 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 7 to 13 mph with gusts up to 25
mph.
* Ridges/upr slopes....West winds 7 to 13 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......6000 ft agl.
* Transport winds.....West 15 to 20 mph.
* Ventilation Index...Moderate (209-347) increasing to very high
(767-905) in the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....30-39.
* Max humidity........87-100 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 3 to 8 mph.
* Ridges/upr slopes....Southwest winds 3 to 8 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Moderate (201-307) decreasing to low (26-42)
after midnight.
.MONDAY...
* Sky/weather.........Partly cloudy then becoming sunny.
* Max temperature.....64-71...except 58-63 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.......5500 ft agl.
* Transport winds.....Southwest 5 to 10 mph.
* Ventilation Index...Low (25-28) increasing to low to moderate
(189-279) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 34 to 43. Highs 65 to 71. Northwest
winds up to 5 mph.
.WEDNESDAY...Mostly clear. Lows 35 to 43. Highs 67 to 74. North
winds 1 to 6 mph.
.THURSDAY...Mostly clear. Lows 37 to 45. Highs 75 to 82. East
winds 1 to 6 mph.
.FRIDAY...Mostly clear. Lows 41 to 49. Highs 79 to 86. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 43 to 51. Highs 77 to 83. South
winds up to 5 mph.
$$
ORZ703-131130-
Warm Springs Reservation-
220 PM PDT Sat Sep 12 2026
.TONIGHT...
* Sky/weather.........Mostly cloudy. Showers in the evening, then a
chance of showers after midnight.
* Min temperature.....42-47...except 37-42 ridges.
* Max humidity........82-89 percent...except 88-100 percent ridges.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 6 to 12 mph.
* Ridges/upr slopes....West winds 7 to 13 mph.
* CWR.................90 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....West around 15 mph.
* Ventilation Index...Low (152-198) decreasing to low (50-136)
after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy. A chance of showers.
* Max temperature.....56-65...except 45-53 ridges.
* Min humidity........49-64 percent...except 69-84 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 9 to 15 mph with gusts up to 30
mph.
* Ridges/upr slopes....West winds 9 to 15 mph.
* CWR.................0 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......5000 ft agl.
* Transport winds.....West around 15 mph increasing to around 25
mph in the afternoon.
* Ventilation Index...Low to moderate (170-270) increasing to high
to very high (620-816) in the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....39-44.
* Max humidity........84-95 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 3 to 8 mph.
* Ridges/upr slopes....West winds 4 to 9 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Low to moderate (165-287) decreasing to low
(25-68) after midnight.
.MONDAY...
* Sky/weather.........Partly cloudy then becoming sunny.
* Max temperature.....67-74...except 57-64 ridges.
* Min humidity........30-40 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 1 to 5 mph in the morning
becoming upslope less than 5 mph.
* Ridges/upr slopes....West winds 2 to 7 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......5000 ft agl.
* Transport winds.....West around 10 mph.
* Ventilation Index...Low (25-55) increasing to low to moderate
(178-294) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Partly cloudy. Lows 40 to 45. Highs 64 to 73.
Northwest winds up to 5 mph.
.WEDNESDAY...Mostly clear. Lows 42 to 47. Highs 66 to 75. North
winds 1 to 6 mph.
.THURSDAY...Clear. Lows 45 to 50. Highs 73 to 82. Northeast winds
2 to 7 mph.
.FRIDAY...Mostly clear. Lows 49 to 54. Highs 77 to 86. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 50 to 55. Highs 73 to 84. West
winds up to 5 mph.
$$
ORZ704-131130-
Northern Deschutes National Forest-
220 PM PDT Sat Sep 12 2026
.TONIGHT...
* Sky/weather.........Mostly cloudy. A slight chance of
thunderstorms in the evening. Showers likely. A slight chance of
snow showers after midnight.
* Min temperature.....33-40.
* Max humidity........85-100 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 6 to 12 mph.
* Ridges/upr slopes....West winds 8 to 14 mph.
* CWR.................80 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......500 ft agl.
* Transport winds.....West around 15 mph.
* Ventilation Index...Low to moderate (169-217) decreasing to low
(49-193) after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy. A chance of snow showers in
the morning. A chance of showers.
* Max temperature.....55-60...except 43-52 ridges.
* Min humidity........54-63 percent...except 69-84 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 7 to 13 mph with gusts up to 30
mph.
* Ridges/upr slopes....West winds 7 to 13 mph.
* CWR.................20 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......4500 ft agl.
* Transport winds.....West 20 to 25 mph.
* Ventilation Index...Low to moderate (191-307) increasing to high
to very high (531-815) in the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....33-39.
* Max humidity........85-100 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 2 to 7 mph.
* Ridges/upr slopes....West winds 3 to 8 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Low to moderate (156-242) decreasing to low
(29-53) after midnight.
.MONDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....68-73...except 56-65 ridges.
* Min humidity........25-33 percent...except 31-45 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....Southwest winds 2 to 7 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......5500 ft agl.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Low (25-35) increasing to moderate (224-278)
in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 35 to 41. Highs 61 to 71. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Mostly clear. Lows 37 to 43. Highs 62 to 72.
Northeast winds 2 to 7 mph.
.THURSDAY...Mostly clear. Lows 39 to 45. Highs 71 to 81. East
winds 1 to 6 mph.
.FRIDAY...Mostly clear. Lows 42 to 49. Highs 74 to 84. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 43 to 51. Highs 69 to 81. Terrain
driven winds less than 5 mph.
$$
ORZ705-131130-
Southern Deschutes National Forest-
220 PM PDT Sat Sep 12 2026
.TONIGHT...
* Sky/weather.........Mostly cloudy. Showers and a slight chance of
thunderstorms in the evening, then a chance of rain and snow
showers after midnight.
* Min temperature.....29-35.
* Max humidity........92-100 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 5 to 11 mph.
* Ridges/upr slopes....West winds 7 to 13 mph.
* CWR.................60 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......500 ft agl.
* Transport winds.....West around 15 mph.
* Ventilation Index...Moderate (217-385) decreasing to low to
moderate (160-252) after midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy. A
slight chance of snow showers in the morning. A chance of
showers.
* Max temperature.....52-57...except 42-50 ridges.
* Min humidity........49-64 percent...except 63-78 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 4 to 10 mph.
* Ridges/upr slopes....West winds 5 to 11 mph.
* CWR.................10 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......5000 ft agl.
* Transport winds.....West 15 to 20 mph.
* Ventilation Index...Moderate (224-308) increasing to high to very
high (500-762) in the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....27-34.
* Max humidity........93-100 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 2 to 7 mph.
* Ridges/upr slopes....West winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Low to moderate (146-248) decreasing to low
(25-36) after midnight.
.MONDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....65-70...except 56-64 ridges.
* Min humidity........20-33 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....West winds 1 to 6 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......6000 ft agl.
* Transport winds.....West around 5 mph.
* Ventilation Index...Low (25-29) increasing to moderate (207-281)
in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 31 to 38. Highs 63 to 72. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Mostly clear. Lows 32 to 39. Highs 65 to 73.
Northeast winds 1 to 6 mph.
.THURSDAY...Clear. Lows 34 to 42. Highs 74 to 82. East winds 1 to
6 mph.
.FRIDAY...Mostly clear. Lows 37 to 47. Highs 76 to 84. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 38 to 48. Highs 71 to 81. Terrain
driven winds less than 5 mph.
$$
ORZ697-131130-
Central Blue Mountains-
220 PM PDT Sat Sep 12 2026
.TONIGHT...
* Sky/weather.........Mostly cloudy. A chance of showers and a
slight chance of thunderstorms in the evening, then showers after
midnight.
* Min temperature.....35-40.
* Max humidity........82-94 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 5 to 11 mph.
* Ridges/upr slopes....West winds 6 to 12 mph.
* CWR.................20 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......500 ft agl.
* Transport winds.....West around 15 mph.
* Ventilation Index...Moderate (282-368) decreasing to low to
moderate (159-205) after midnight.
.SUNDAY...
* Sky/weather.........Partly cloudy then becoming mostly cloudy. A
slight chance of showers.
* Max temperature.....52-57...except 47-53 ridges.
* Min humidity........44-55 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 6 to 12 mph.
* Ridges/upr slopes....West winds 6 to 12 mph.
* CWR.................0 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......7000 ft agl.
* Transport winds.....West 15 to 20 mph.
* Ventilation Index...Moderate (256-316) increasing to very high
(849-985) in the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
* Min temperature.....32-37.
* Max humidity........84-97 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 3 to 8 mph.
* Ridges/upr slopes....West winds 3 to 8 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....West 10 to 15 mph.
* Ventilation Index...Moderate (304-366) decreasing to low (33-97)
after midnight.
.MONDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....62-67...except 57-62 ridges.
* Min humidity........24-30 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.......6500 ft agl.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Low (26-44) increasing to moderate (322-384)
in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 34 to 39. Highs 62 to 68. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Mostly clear. Lows 35 to 41. Highs 64 to 70. North
winds 1 to 5 mph.
.THURSDAY...Clear. Lows 37 to 43. Highs 69 to 76. Terrain driven
winds less than 5 mph.
.FRIDAY...Mostly clear. Lows 41 to 47. Highs 73 to 80. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 44 to 50. Highs 72 to 79. South
winds up to 5 mph.
$$
ORZ698-131130-
Southern Blue Mountains-
220 PM PDT Sat Sep 12 2026
.TONIGHT...
* Sky/weather.........Mostly cloudy. A chance of showers and a
slight chance of thunderstorms in the evening, then showers after
midnight.
* Min temperature.....36-41.
* Max humidity........78-93 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 7 to 13 mph with gusts up to 25
mph.
* Ridges/upr slopes....West winds 7 to 13 mph.
* CWR.................10 percent.
* Chc of lightning....20 percent (slight chance).
* Mixing height.......500 ft agl.
* Transport winds.....West around 20 mph.
* Ventilation Index...Moderate to high (366-520) decreasing to low
to moderate (179-269) after midnight.
.SUNDAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....52-59.
* Min humidity........36-49 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 8 to 14 mph with gusts up to 25
mph.
* Ridges/upr slopes....West winds 7 to 13 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......7500 ft agl.
* Transport winds.....West 15 to 20 mph.
* Ventilation Index...Moderate (288-354) increasing to very high
(924-1034) in the afternoon.
.SUNDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....32-37.
* Max humidity........84-99 percent.
* Humidity recovery...Excellent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 4 to 9 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....West winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....Northwest 10 to 15 mph.
* Ventilation Index...Moderate (336-400) decreasing to low (40-50)
after midnight.
.MONDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....62-67.
* 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.......6500 ft agl.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Low (26-34) increasing to moderate (312-370)
in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 35 to 40. Highs 66 to 71. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Mostly clear. Lows 36 to 42. Highs 67 to 73. North
winds 1 to 6 mph.
.THURSDAY...Mostly clear. Lows 38 to 43. Highs 73 to 78. North
winds up to 5 mph.
.FRIDAY...Mostly clear. Lows 41 to 47. Highs 77 to 82. Southeast
winds up to 5 mph.
.SATURDAY...Mostly clear. Lows 44 to 50. Highs 76 to 81.
Southeast winds 1 to 6 mph.
$$
.8-14 DAY OUTLOOK for Sunday September 20 through Saturday September 26...
A greater chance of above normal temperatures and near normal to
above normal precipitation.
$$