659
FNUS56 KPDT 241312
FWFPDT
FIRE WEATHER PLANNING FORECAST FOR NE OREGON AND SE WASHINGTON
NATIONAL WEATHER SERVICE PENDLETON OR
612 AM PDT THU SEP 24 2026
DISCUSSION
SOUTHERLY BREEZY WINDS WILL DEVELOP ACROSS PORTIONS
OF THE EASTERN MOUNTAINS TODAY, THEN AREA-WIDE BREEZY TO LOCALLY
GUSTY WESTERLY WINDS WILL DEVELOP FRIDAY WITH A COLD FRONT
PASSAGE. LIGHT RAIN SHOWERS WILL DEVELOP LATE TONIGHT THROUGH
TOMORROW AFTERNOON, WITH A SLIGHT CHANCE OF THUNDER IN THE WA
CASCADES. AFTER FRIDAY, DRY CONDITIONS WITH LIGHT WINDS WILL
REDEVELOP AND PREVAIL INTO NEXT WEEK.
***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. ***
WAZ695-242345-
EAST WASHINGTON SOUTH CENTRAL CASCADE MOUNTAINS-
612 AM PDT THU SEP 24 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY.
* MAX TEMPERATURE.....63-68...EXCEPT 56-62 RIDGES.
* MIN HUMIDITY........42-51 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING SOUTHEAST 1
TO 6 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHEAST WINDS UP TO 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......4000 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (27-43) INCREASING TO LOW TO MODERATE
(194-328) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN
THE EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT.
* MIN TEMPERATURE.....44-50...EXCEPT 38-45 RIDGES.
* MAX HUMIDITY........83-98 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 1 TO 6 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 1 TO 6 MPH.
* CWR.................50 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
* VENTILATION INDEX...LOW (34-136) DECREASING TO LOW (25-100) AFTER
MIDNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS LIKELY IN THE MORNING,
THEN SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* MAX TEMPERATURE.....50-58...EXCEPT 45-51 RIDGES.
* MIN HUMIDITY........69-84 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 6 TO 12 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 6 TO 12 MPH.
* CWR.................70 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......4000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.
* VENTILATION INDEX...LOW TO MODERATE (81-241) INCREASING TO
MODERATE TO HIGH (256-506) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
A CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 33 TO 39.
HIGHS 47 TO 58. WEST WINDS 6 TO 12 MPH.
SUNDAY
MOSTLY CLOUDY. LOWS 33 TO 39. HIGHS 50 TO 61. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
PARTLY CLOUDY. LOWS 34 TO 39. HIGHS 50 TO 61. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
36 TO 42. HIGHS 50 TO 61. WEST WINDS UP TO 5 MPH.
WEDNESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
38 TO 43. HIGHS 52 TO 63. SOUTHWEST WINDS UP TO 5 MPH.
WAZ690-242345-
KITTITAS VALLEY-
612 AM PDT THU SEP 24 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY.
* MAX TEMPERATURE.....67-73...EXCEPT 59-68 RIDGES.
* MIN HUMIDITY........36-45 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.......3500 FT AGL.
* TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH SHIFTING TO THE SOUTH
IN THE AFTERNOON.
* VENTILATION INDEX...LOW (25-26) INCREASING TO LOW TO MODERATE
(134-204) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS LIKELY AFTER MIDNIGHT.
* MIN TEMPERATURE.....49-55.
* MAX HUMIDITY........80-95 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT...EXCEPT GOOD RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH BECOMING
SOUTHWEST 1 TO 6 MPH AFTER MIDNIGHT.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (25-42).
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS.
* MAX TEMPERATURE.....58-65...EXCEPT 51-59 RIDGES.
* MIN HUMIDITY........54-69 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 6 TO 12 MPH INCREASING TO 12
TO 18 MPH IN THE AFTERNOON. GUSTS TO 30 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 7 TO 13 MPH INCREASING TO 14
TO 20 MPH IN THE AFTERNOON.
* CWR.................30 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.
* VENTILATION INDEX...LOW TO MODERATE (114-222) INCREASING TO HIGH
TO VERY HIGH (570-912) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLEAR. LOWS 38 TO 43. HIGHS 56 TO 63. WEST
WINDS 6 TO 12 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 39 TO 45. HIGHS 59 TO 66. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
MOSTLY CLEAR. LOWS 39 TO 44. HIGHS 60 TO 67. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 41 TO 46. HIGHS 60 TO 67. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 42 TO 47. HIGHS 60 TO 67.
TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
WAZ694-242345-
YAKAMA ALPINE DISTRICT-
612 AM PDT THU SEP 24 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY.
* MAX TEMPERATURE.....67-73...EXCEPT 59-70 RIDGES.
* MIN HUMIDITY........35-45 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.......3500 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* VENTILATION INDEX...LOW (25-34) INCREASING TO LOW TO MODERATE
(142-262) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS LIKELY AFTER MIDNIGHT.
* MIN TEMPERATURE.....41-49.
* MAX HUMIDITY........88-100 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 4 TO 9 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 5 TO 11 MPH.
* CWR.................60 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
* VENTILATION INDEX...LOW (49-95) DECREASING TO LOW (44-76) AFTER
MIDNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
MORNING, THEN SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE.....52-59...EXCEPT 45-53 RIDGES.
* MIN HUMIDITY........69-84 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 9 TO 15 MPH WITH GUSTS UP TO
40 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 9 TO 15 MPH.
* CWR.................60 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......4500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH.
* VENTILATION INDEX...LOW TO MODERATE (185-329) INCREASING TO
MODERATE TO VERY HIGH (398-720) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
33 TO 39. HIGHS 50 TO 61. WEST WINDS 6 TO 12 MPH.
SUNDAY
MOSTLY CLOUDY. LOWS 35 TO 42. HIGHS 53 TO 64. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
MOSTLY CLEAR. LOWS 34 TO 41. HIGHS 54 TO 65. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 37 TO 44. HIGHS 54 TO 65. WEST
WINDS 1 TO 5 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 38 TO 45. HIGHS 55 TO 67.
SOUTHWEST WINDS 1 TO 5 MPH.
ORZ691-WAZ691-242345-
LOWER COLUMBIA BASIN OF OREGON-LOWER COLUMBIA BASIN OF WASHINGTON-
612 AM PDT THU SEP 24 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
* MAX TEMPERATURE.....74-79...EXCEPT 67-74 RIDGES.
* MIN HUMIDITY........28-37 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.......5000 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH.
* VENTILATION INDEX...LOW (25-26) INCREASING TO LOW (49-125) IN THE
AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
* MIN TEMPERATURE.....51-56.
* MAX HUMIDITY........70-85 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH BECOMING
SOUTHWEST 3 TO 8 MPH AFTER MIDNIGHT.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH BECOMING
SOUTHWEST 7 TO 13 MPH AFTER MIDNIGHT.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (25-48).
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY. PATCHY BLOWING DUST. A CHANCE
OF SHOWERS.
* MAX TEMPERATURE.....62-72...EXCEPT 57-67 RIDGES.
* MIN HUMIDITY........41-56 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...BREEZY. SOUTHWEST WINDS 8 TO 14 MPH WITH
GUSTS UP TO 30 MPH INCREASING TO 15 TO 25 MPH WITH GUSTS UP
TO 40 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 9 TO 15 MPH INCREASING TO 16
TO 25 MPH IN THE AFTERNOON.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH INCREASING TO AROUND
25 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW TO MODERATE (157-347) INCREASING TO VERY
HIGH (945-1050) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLEAR. LOWS 40 TO 46. HIGHS 60 TO 67.
SOUTHWEST WINDS 9 TO 15 MPH.
SUNDAY
MOSTLY CLOUDY. LOWS 41 TO 46. HIGHS 61 TO 69. NORTH
WINDS 1 TO 6 MPH.
MONDAY
MOSTLY CLEAR. LOWS 41 TO 46. HIGHS 64 TO 70. SOUTHWEST
WINDS 1 TO 5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 43 TO 48. HIGHS 65 TO 71.
SOUTHWEST WINDS 1 TO 6 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 44 TO 49. HIGHS 66 TO 71.
SOUTHWEST WINDS 2 TO 7 MPH.
ORZ692-WAZ692-242345-
NORTHERN BLUE MOUNTAINS OF OREGON-BLUE MOUNTAINS OF WASHINGTON-
612 AM PDT THU SEP 24 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....75-83...EXCEPT 71-77 RIDGES.
* MIN HUMIDITY........24-34 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING SOUTHWEST 2
TO 7 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTH WINDS 2 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 10 MPH.
* VENTILATION INDEX...LOW (27-47) INCREASING TO LOW TO HIGH
(168-586) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
* MIN TEMPERATURE.....46-53.
* MAX HUMIDITY........74-89 PERCENT.
* HUMIDITY RECOVERY...GOOD...EXCEPT EXCELLENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH BECOMING
SOUTHWEST 1 TO 6 MPH AFTER MIDNIGHT.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 5 MPH.
* VENTILATION INDEX...LOW (26-72) DECREASING TO LOW (25-33) AFTER
MIDNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS LIKELY.
* MAX TEMPERATURE.....59-68...EXCEPT 53-58 RIDGES.
* MIN HUMIDITY........43-58 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 1 TO 6 MPH INCREASING TO
WEST 9 TO 15 MPH WITH GUSTS UP TO 30 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....WEST WINDS 2 TO 7 MPH INCREASING TO 7 TO 13
MPH IN THE AFTERNOON.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH INCREASING TO AROUND
20 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW (88-140) INCREASING TO VERY HIGH
(854-1042) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS 35 TO 43. HIGHS 52 TO 62.
SOUTHWEST WINDS 7 TO 13 MPH.
SUNDAY
MOSTLY CLOUDY. LOWS 36 TO 43. HIGHS 53 TO 63. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
PARTLY CLOUDY. LOWS 34 TO 43. HIGHS 54 TO 64. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 36 TO 44. HIGHS 57 TO 67. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 39 TO 46. HIGHS 59 TO 69.
SOUTHWEST WINDS 1 TO 5 MPH.
ORZ693-WAZ693-242345-
CANYON GRASSLANDS OF WALLOWA COUNTY-
SOUTHEAST WASHINGTON GRANDE RONDE VALLEY-
612 AM PDT THU SEP 24 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....79-87...EXCEPT 72-79 RIDGES.
* MIN HUMIDITY........19-24 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH WINDS 5 TO 11 MPH.
* RIDGES/UPR SLOPES....SOUTH WINDS 6 TO 12 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH INCREASING TO SOUTH
AROUND 20 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW (25-63) INCREASING TO HIGH TO VERY HIGH
(509-995) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY.
* MIN TEMPERATURE.....49-58...EXCEPT 54-59 RIDGES.
* MAX HUMIDITY........53-68 PERCENT...EXCEPT 47-56 PERCENT RIDGES.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH WINDS 5 TO 11 MPH.
* RIDGES/UPR SLOPES....SOUTH WINDS 6 TO 12 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.
* VENTILATION INDEX...LOW (87-169) DECREASING TO LOW (38-84) AFTER
MIDNIGHT.
FRIDAY
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY. A
CHANCE OF SHOWERS.
* MAX TEMPERATURE.....61-72...EXCEPT 60-65 RIDGES.
* MIN HUMIDITY........37-47 PERCENT.
* 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....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH INCREASING TO AROUND
20 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW (86-136) INCREASING TO HIGH TO VERY HIGH
(613-939) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS 34 TO 43. HIGHS 56 TO 66. WEST
WINDS 4 TO 10 MPH.
SUNDAY
MOSTLY CLOUDY. LOWS 36 TO 43. HIGHS 57 TO 66. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
PARTLY CLOUDY. LOWS 35 TO 42. HIGHS 57 TO 67. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 35 TO 43. HIGHS 60 TO 69. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 38 TO 46. HIGHS 62 TO 72. SOUTH
WINDS 2 TO 7 MPH.
ORZ701-242345-
EASTERN COLUMBIA RIVER GORGE OF OREGON-
612 AM PDT THU SEP 24 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY.
* MAX TEMPERATURE.....73-78...EXCEPT 68-75 RIDGES.
* MIN HUMIDITY........32-47 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.......3000 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 5 MPH.
* VENTILATION INDEX...LOW (25-30) INCREASING TO LOW (82-150) IN THE
AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS LIKELY AFTER MIDNIGHT.
* MIN TEMPERATURE.....47-53.
* MAX HUMIDITY........82-97 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WINDS WEST WINDS 1 TO 6 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH BECOMING
SOUTHWEST 2 TO 7 MPH AFTER MIDNIGHT.
* CWR.................30 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (41-55) DECREASING TO LOW (29-41) AFTER
MIDNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS LIKELY IN THE MORNING,
THEN A CHANCE OF SHOWERS IN THE AFTERNOON. PATCHY BLOWING DUST IN
THE AFTERNOON.
* MAX TEMPERATURE.....60-65...EXCEPT 55-61 RIDGES.
* MIN HUMIDITY........64-79 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 6 TO 12 MPH INCREASING TO 12
TO 18 MPH IN THE AFTERNOON. IN THE EASTERN COLUMBIA RIVER
GORGE, WEST WINDS 2 TO 7 MPH INCREASING TO 10 TO 16 MPH IN
THE AFTERNOON. GUSTS TO 35 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 9 TO 15 MPH.
* CWR.................30 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......5000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.
* VENTILATION INDEX...LOW TO MODERATE (115-359) INCREASING TO
MODERATE TO VERY HIGH (457-901) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
A CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 38 TO 44.
HIGHS 61 TO 66. WEST WINDS 6 TO 12 MPH.
SUNDAY
MOSTLY CLOUDY. LOWS 40 TO 45. HIGHS 64 TO 69. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
MOSTLY CLEAR. LOWS 39 TO 44. HIGHS 65 TO 70. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 41 TO 46. HIGHS 65 TO 70. WEST
WINDS UP TO 5 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 42 TO 47. HIGHS 66 TO 71.
TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
ORZ702-242345-
EAST SLOPES OF THE MT. HOOD NATIONAL FOREST-
612 AM PDT THU SEP 24 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY.
* MAX TEMPERATURE.....71-76...EXCEPT 65-71 RIDGES.
* MIN HUMIDITY........33-41 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.......4000 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* VENTILATION INDEX...LOW (27-43) INCREASING TO LOW TO MODERATE
(175-303) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS LIKELY AFTER MIDNIGHT.
* MIN TEMPERATURE.....40-50.
* MAX HUMIDITY........82-97 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH BECOMING
SOUTHWEST 2 TO 7 MPH AFTER MIDNIGHT.
* CWR.................50 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
* VENTILATION INDEX...LOW (62-130) DECREASING TO LOW (41-103) AFTER
MIDNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS LIKELY IN THE MORNING,
THEN SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE.....52-61...EXCEPT 47-55 RIDGES.
* MIN HUMIDITY........70-85 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 8 TO 14 MPH WITH GUSTS UP TO
35 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 7 TO 13 MPH.
* CWR.................50 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......4000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH.
* VENTILATION INDEX...MODERATE (292-438) INCREASING TO HIGH TO VERY
HIGH (506-734) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
A CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 33 TO 39.
HIGHS 51 TO 61. WEST WINDS 3 TO 8 MPH.
SUNDAY
MOSTLY CLOUDY. LOWS 35 TO 42. HIGHS 53 TO 64. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
PARTLY CLOUDY. LOWS 34 TO 40. HIGHS 54 TO 67. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 37 TO 43. HIGHS 55 TO 68. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 39 TO 44. HIGHS 57 TO 69.
TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
ORZ695-242345-
EAGLE CAP WILDERNESS-
612 AM PDT THU SEP 24 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....73-84...EXCEPT 62-73 RIDGES.
* MIN HUMIDITY........23-33 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH WINDS 6 TO 12 MPH.
* RIDGES/UPR SLOPES....SOUTH WINDS 6 TO 12 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 10 MPH INCREASING TO AROUND 20
MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW (54-138) INCREASING TO HIGH TO VERY HIGH
(605-949) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....47-55.
* MAX HUMIDITY........52-67 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH WINDS 6 TO 12 MPH.
* RIDGES/UPR SLOPES....SOUTH WINDS 7 TO 13 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 15 MPH.
* VENTILATION INDEX...LOW TO MODERATE (91-211) DECREASING TO LOW
(47-135) AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS.
* MAX TEMPERATURE.....59-73...EXCEPT 52-63 RIDGES.
* MIN HUMIDITY........35-50 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 7 TO 13 MPH WITH GUSTS UP TO
25 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 8 TO 14 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.
* VENTILATION INDEX...LOW TO MODERATE (91-237) INCREASING TO VERY
HIGH (847-1039) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS 30 TO 40. HIGHS 48 TO 62. WEST
WINDS 4 TO 9 MPH.
SUNDAY
MOSTLY CLOUDY. LOWS 34 TO 42. HIGHS 49 TO 64. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
PARTLY CLOUDY. LOWS 31 TO 39. HIGHS 49 TO 63. NORTH
WINDS 1 TO 6 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 32 TO 41. HIGHS 51 TO 65. SOUTHWEST
WINDS 1 TO 6 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 35 TO 43. HIGHS 53 TO 67.
SOUTHWEST WINDS 1 TO 5 MPH.
ORZ694-242345-
GRANDE RONDE VALLEY OF OREGON-
612 AM PDT THU SEP 24 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....81-86.
* MIN HUMIDITY........21-26 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH WINDS 8 TO 14 MPH WITH GUSTS UP TO 30
MPH.
* RIDGES/UPR SLOPES....SOUTH WINDS 9 TO 15 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH INCREASING TO SOUTH
AROUND 20 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW (43-91) INCREASING TO VERY HIGH (745-879)
IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY.
* MIN TEMPERATURE.....48-53.
* MAX HUMIDITY........67-76 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH WINDS 6 TO 12 MPH.
* RIDGES/UPR SLOPES....SOUTH WINDS 6 TO 12 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.
* VENTILATION INDEX...LOW (97-139) DECREASING TO LOW (38-74) AFTER
MIDNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS.
* MAX TEMPERATURE.....67-72.
* MIN HUMIDITY........32-42 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 5 TO 11 MPH. GUSTS TO 25 MPH
IN THE AFTERNOON.
* RIDGES/UPR SLOPES....WEST WINDS 5 TO 11 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
* VENTILATION INDEX...LOW (70-106) INCREASING TO VERY HIGH
(717-933) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLEAR. LOWS 33 TO 39. HIGHS 61 TO 66. WEST
WINDS 6 TO 12 MPH.
SUNDAY
MOSTLY CLOUDY. LOWS 35 TO 40. HIGHS 63 TO 68. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
PARTLY CLOUDY. LOWS 32 TO 38. HIGHS 63 TO 68. NORTHWEST
WINDS 2 TO 7 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 33 TO 40. HIGHS 65 TO 70. SOUTH
WINDS 1 TO 6 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 37 TO 43. HIGHS 67 TO 72. SOUTH
WINDS 1 TO 5 MPH.
ORZ699-242345-
WESTERN FORESTED BLUE MOUNTAINS-
612 AM PDT THU SEP 24 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....78-84...EXCEPT 71-78 RIDGES.
* MIN HUMIDITY........18-26 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH WINDS 2 TO 7 MPH.
* RIDGES/UPR SLOPES....SOUTH WINDS 2 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 10 MPH INCREASING TO AROUND 20
MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW (32-74) INCREASING TO HIGH TO VERY HIGH
(634-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY.
* MIN TEMPERATURE.....45-51.
* MAX HUMIDITY........63-78 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 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.....SOUTH AROUND 10 MPH.
* VENTILATION INDEX...LOW TO MODERATE (75-227) DECREASING TO LOW
(26-74) AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF SHOWERS.
* MAX TEMPERATURE.....59-65...EXCEPT 54-59 RIDGES.
* MIN HUMIDITY........33-45 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 2 TO 7 MPH INCREASING TO 8
TO 14 MPH WITH GUSTS UP TO 30 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 5 TO 11 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH INCREASING TO AROUND
25 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW TO MODERATE (156-234) INCREASING TO VERY
HIGH (1033-1050) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS 32 TO 38. HIGHS 52 TO 61. WEST
WINDS 3 TO 8 MPH.
SUNDAY
MOSTLY CLOUDY. LOWS 35 TO 40. HIGHS 53 TO 62. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
PARTLY CLOUDY. LOWS 33 TO 38. HIGHS 53 TO 62. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 34 TO 40. HIGHS 57 TO 66. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 37 TO 42. HIGHS 60 TO 68. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
ORZ696-242345-
JOHN DAY VALLEY-
612 AM PDT THU SEP 24 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....79-87...EXCEPT 75-80 RIDGES.
* MIN HUMIDITY........15-22 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING SOUTHWEST 3
TO 8 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTH WINDS 2 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH INCREASING TO SOUTH
AROUND 15 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW (25-43) INCREASING TO HIGH TO VERY HIGH
(532-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS
AFTER MIDNIGHT.
* MIN TEMPERATURE.....48-53.
* MAX HUMIDITY........61-76 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 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.....SOUTHWEST AROUND 10 MPH.
* VENTILATION INDEX...LOW TO MODERATE (81-229) DECREASING TO LOW
(25-51) AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF SHOWERS IN THE MORNING.
* MAX TEMPERATURE.....60-68...EXCEPT 55-60 RIDGES.
* MIN HUMIDITY........29-38 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 4 TO 10 MPH INCREASING TO 11
TO 18 MPH IN THE AFTERNOON. GUSTS TO 30 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 5 TO 11 MPH INCREASING TO 11
TO 17 MPH IN THE AFTERNOON.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH INCREASING TO WEST
AROUND 25 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW TO MODERATE (195-295) INCREASING TO VERY
HIGH (1050) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS 34 TO 41. HIGHS 57 TO 65. WEST
WINDS 4 TO 10 MPH.
SUNDAY
MOSTLY CLOUDY. LOWS 38 TO 43. HIGHS 58 TO 67. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
PARTLY CLOUDY. LOWS 35 TO 40. HIGHS 59 TO 67. NORTHWEST
WINDS UP TO 5 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 37 TO 42. HIGHS 62 TO 71. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 39 TO 45. HIGHS 65 TO 74. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
ORZ700-242345-
CENTRAL MOUNTAINS OF OREGON-
612 AM PDT THU SEP 24 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
* MAX TEMPERATURE.....79-84...EXCEPT 73-78 RIDGES.
* MIN HUMIDITY........15-24 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH WINDS 3 TO 8 MPH.
* RIDGES/UPR SLOPES....SOUTH WINDS 3 TO 8 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 5 MPH INCREASING TO SOUTHWEST
AROUND 15 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW (27-49) INCREASING TO MODERATE TO VERY
HIGH (434-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
* MIN TEMPERATURE.....41-49.
* MAX HUMIDITY........68-81 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 3 TO 8 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 4 TO 9 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
* VENTILATION INDEX...LOW TO MODERATE (93-285) DECREASING TO LOW
(40-82) AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF SHOWERS IN THE MORNING.
* MAX TEMPERATURE.....57-63...EXCEPT 51-56 RIDGES.
* MIN HUMIDITY........34-49 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 11 TO 17 MPH WITH GUSTS UP
TO 35 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 11 TO 17 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH.
* VENTILATION INDEX...MODERATE (333-417) INCREASING TO VERY HIGH
(1037-1050) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS 28 TO 37. HIGHS 57 TO 62. WEST
WINDS 4 TO 10 MPH.
SUNDAY
MOSTLY CLOUDY. LOWS 33 TO 40. HIGHS 58 TO 64. NORTH
WINDS 1 TO 6 MPH.
MONDAY
MOSTLY CLEAR. LOWS 30 TO 38. HIGHS 59 TO 65. NORTHWEST
WINDS 1 TO 6 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 32 TO 41. HIGHS 63 TO 69. SOUTHWEST
WINDS 1 TO 6 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 34 TO 43. HIGHS 66 TO 72. SOUTH
WINDS UP TO 5 MPH.
ORZ703-242345-
WARM SPRINGS RESERVATION-
612 AM PDT THU SEP 24 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY.
* MAX TEMPERATURE.....74-81...EXCEPT 65-72 RIDGES.
* MIN HUMIDITY........25-35 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING SOUTHWEST 1
TO 5 MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......4500 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* VENTILATION INDEX...LOW (25-34) INCREASING TO LOW TO MODERATE
(131-359) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........CLOUDY. SHOWERS LIKELY AFTER MIDNIGHT.
* MIN TEMPERATURE.....46-51...EXCEPT 38-45 RIDGES.
* MAX HUMIDITY........71-84 PERCENT...EXCEPT 87-100 PERCENT RIDGES.
* HUMIDITY RECOVERY...GOOD...EXCEPT EXCELLENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH BECOMING
SOUTHWEST 4 TO 10 MPH AFTER MIDNIGHT.
* RIDGES/UPR SLOPES....WEST WINDS 2 TO 7 MPH INCREASING TO
SOUTHWEST 8 TO 14 MPH AFTER MIDNIGHT.
* CWR.................40 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....WEST 10 TO 15 MPH.
* VENTILATION INDEX...LOW (63-119) DECREASING TO LOW (35-101) AFTER
MIDNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS. PATCHY
BLOWING DUST IN THE AFTERNOON.
* MAX TEMPERATURE.....54-64...EXCEPT 46-54 RIDGES.
* MIN HUMIDITY........54-69 PERCENT...EXCEPT 73-88 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 10 TO 16 MPH WITH GUSTS UP
TO 40 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 10 TO 16 MPH.
* CWR.................20 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH.
* VENTILATION INDEX...MODERATE (329-489) INCREASING TO HIGH TO VERY
HIGH (666-976) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 35 TO
40. HIGHS 55 TO 63. SOUTHWEST WINDS 4 TO 10 MPH.
SUNDAY
MOSTLY CLOUDY. LOWS 37 TO 42. HIGHS 57 TO 66. NORTH
WINDS UP TO 5 MPH.
MONDAY
MOSTLY CLEAR. LOWS 36 TO 41. HIGHS 59 TO 68. WEST WINDS
1 TO 5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 38 TO 43. HIGHS 61 TO 71.
SOUTHWEST WINDS UP TO 5 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 41 TO 46. HIGHS 63 TO 72. SOUTH
WINDS 1 TO 6 MPH.
ORZ704-242345-
NORTHERN DESCHUTES NATIONAL FOREST-
612 AM PDT THU SEP 24 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY.
* MAX TEMPERATURE.....75-80...EXCEPT 64-73 RIDGES.
* MIN HUMIDITY........25-36 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 1 TO 6 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 5 MPH INCREASING TO SOUTHWEST
AROUND 15 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW (25-54) INCREASING TO MODERATE TO HIGH
(333-635) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS LIKELY AFTER MIDNIGHT.
* MIN TEMPERATURE.....37-45.
* MAX HUMIDITY........83-98 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 3 TO 8 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 4 TO 9 MPH INCREASING TO 12
TO 18 MPH AFTER MIDNIGHT.
* CWR.................60 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
* VENTILATION INDEX...LOW (99-139) DECREASING TO LOW (46-156) AFTER
MIDNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS LIKELY IN THE MORNING,
THEN A CHANCE OF SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE.....52-57...EXCEPT 43-50 RIDGES.
* MIN HUMIDITY........58-70 PERCENT...EXCEPT 75-90 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 11 TO 17 MPH WITH GUSTS UP
TO 35 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 11 TO 17 MPH.
* CWR.................40 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......5000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 25 MPH.
* VENTILATION INDEX...MODERATE TO HIGH (408-552) INCREASING TO HIGH
TO VERY HIGH (651-891) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
A CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 29 TO 35.
HIGHS 51 TO 60. SOUTHWEST WINDS 3 TO 8 MPH.
SUNDAY
MOSTLY CLOUDY. LOWS 32 TO 38. HIGHS 52 TO 63. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
PARTLY CLOUDY. LOWS 30 TO 36. HIGHS 54 TO 66. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 33 TO 39. HIGHS 57 TO 68. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 35 TO 41. HIGHS 60 TO 71.
TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
ORZ705-242345-
SOUTHERN DESCHUTES NATIONAL FOREST-
612 AM PDT THU SEP 24 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
* MAX TEMPERATURE.....75-80...EXCEPT 64-73 RIDGES.
* MIN HUMIDITY........20-32 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 2 TO 7 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 2 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 10 MPH INCREASING TO SOUTHWEST
AROUND 20 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW (31-67) INCREASING TO VERY HIGH (840-996)
IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS LIKELY AFTER MIDNIGHT.
* MIN TEMPERATURE.....35-41.
* MAX HUMIDITY........85-100 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 4 TO 9 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 4 TO 9 MPH INCREASING TO 9
TO 15 MPH AFTER MIDNIGHT.
* CWR.................40 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
* VENTILATION INDEX...LOW TO MODERATE (165-281) DECREASING TO LOW
(95-187) AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF SHOWERS.
* MAX TEMPERATURE.....51-56...EXCEPT 42-49 RIDGES.
* MIN HUMIDITY........47-62 PERCENT...EXCEPT 61-76 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 9 TO 15 MPH WITH GUSTS UP TO 30
MPH.
* RIDGES/UPR SLOPES....WEST WINDS 9 TO 15 MPH.
* CWR.................20 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 25 MPH.
* VENTILATION INDEX...MODERATE TO HIGH (429-537) INCREASING TO VERY
HIGH (707-1050) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS 24 TO 32. HIGHS 53 TO 60. NORTH
WINDS 1 TO 6 MPH.
SUNDAY
MOSTLY CLOUDY. LOWS 28 TO 36. HIGHS 54 TO 62. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
MOSTLY CLEAR. LOWS 25 TO 33. HIGHS 55 TO 63. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 28 TO 36. HIGHS 59 TO 66. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 30 TO 39. HIGHS 63 TO 70. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
ORZ697-242345-
CENTRAL BLUE MOUNTAINS-
612 AM PDT THU SEP 24 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....77-82...EXCEPT 72-78 RIDGES.
* MIN HUMIDITY........15-20 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH WINDS 3 TO 8 MPH.
* RIDGES/UPR SLOPES....SOUTH WINDS 3 TO 8 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 10 MPH INCREASING TO AROUND 20
MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW (43-69) INCREASING TO VERY HIGH
(944-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
* MIN TEMPERATURE.....44-51.
* MAX HUMIDITY........53-67 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH WINDS 3 TO 8 MPH.
* RIDGES/UPR SLOPES....SOUTH WINDS 4 TO 9 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.
* VENTILATION INDEX...MODERATE (208-286) DECREASING TO LOW (58-88)
AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF SHOWERS IN THE MORNING.
* MAX TEMPERATURE.....57-62.
* MIN HUMIDITY........30-37 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 7 TO 13 MPH WITH GUSTS UP TO
30 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 7 TO 13 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH INCREASING TO WEST
AROUND 25 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW TO MODERATE (195-311) INCREASING TO VERY
HIGH (1050) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS 30 TO 36. HIGHS 54 TO 61.
NORTHWEST WINDS 3 TO 8 MPH.
SUNDAY
MOSTLY CLOUDY. LOWS 35 TO 40. HIGHS 56 TO 62. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
PARTLY CLOUDY. LOWS 31 TO 37. HIGHS 55 TO 61. NORTHWEST
WINDS UP TO 5 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 32 TO 37. HIGHS 58 TO 65. WEST
WINDS UP TO 5 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 34 TO 40. HIGHS 61 TO 68. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
ORZ698-242345-
SOUTHERN BLUE MOUNTAINS-
612 AM PDT THU SEP 24 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....78-85.
* MIN HUMIDITY........10-15 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH WINDS 4 TO 9 MPH.
* RIDGES/UPR SLOPES....SOUTH WINDS 4 TO 9 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH INCREASING TO SOUTH
AROUND 20 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW (26-50) INCREASING TO VERY HIGH
(867-1029) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
* MIN TEMPERATURE.....44-51.
* MAX HUMIDITY........52-67 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 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.....SOUTHWEST AROUND 15 MPH.
* VENTILATION INDEX...MODERATE (225-331) DECREASING TO LOW (50-90)
AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF SHOWERS IN THE MORNING.
* MAX TEMPERATURE.....59-66.
* MIN HUMIDITY........26-33 PERCENT.
* 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....0 PERCENT.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH INCREASING TO WEST
AROUND 25 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW TO MODERATE (189-295) INCREASING TO VERY
HIGH (1050) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS 30 TO 36. HIGHS 58 TO 63.
NORTHWEST WINDS 5 TO 11 MPH.
SUNDAY
MOSTLY CLOUDY. LOWS 35 TO 41. HIGHS 60 TO 66. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
PARTLY CLOUDY. LOWS 31 TO 37. HIGHS 59 TO 65. NORTHWEST
WINDS 2 TO 7 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 32 TO 38. HIGHS 62 TO 67. WEST
WINDS 1 TO 6 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 34 TO 40. HIGHS 65 TO 70. SOUTH
WINDS 1 TO 6 MPH.
.8-14 DAY OUTLOOK FOR THURSDAY OCTOBER 1 THROUGH WEDNESDAY OCTOBER 7...
A GREATER CHANCE OF ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL
PRECIPITATION.
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