674
FNUS56 KPDT 251256
FWFPDT
FIRE WEATHER PLANNING FORECAST FOR NE OREGON AND SE WASHINGTON
NATIONAL WEATHER SERVICE PENDLETON OR
556 AM PDT MON MAY 25 2026
DISCUSSION
A COLD FRONTAL SYSTEM WILL BRING UNSETTLED WEATHER
IN THE REGION FOR THE NEXT SEVERAL DAYS. CHANCES OF SHOWERS AND AN
ISOLATED THUNDERSTORM WILL BE GREATEST TODAY WITH BREEZY TO
LOCALLY WINDY CONDITIONS DEVELOPING LATER TODAY. STRONGEST WINDS
WILL BE SITUATED FROM CENTRAL OREGON THROUGH THE SIMCOE HIGHLANDS
THROUGH THE EVENING HOURS. THUNDERSTORM POTENTIAL REMAINS GREATEST
ACROSS THE WALLOWAS, NORTHERN BLUES THAT INCLUDE THE FOOTHILLS OF
THE BLUES OF OREGON AND WASHINGTON.
***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. ***
WAZ695-252315-
EAST WASHINGTON SOUTH CENTRAL CASCADE MOUNTAINS-
556 AM PDT MON MAY 25 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
AFTERNOON.
* MAX TEMPERATURE.....59-69...EXCEPT 50-59 RIDGES.
* MIN HUMIDITY........31-46 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH WINDS 2 TO 7 MPH SHIFTING TO THE
SOUTHWEST 7 TO 13 MPH WITH GUSTS UP TO 25 MPH IN THE
AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 7 TO 13 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH INCREASING TO AROUND
20 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW (93-189) INCREASING TO HIGH TO VERY HIGH
(630-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF RAIN AND SNOW
SHOWERS IN THE EVENING, THEN A SLIGHT CHANCE OF RAIN AND SNOW
SHOWERS AFTER MIDNIGHT.
* MIN TEMPERATURE.....34-40.
* MAX HUMIDITY........78-93 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 7 TO 13 MPH DECREASING TO 2 TO 7
MPH AFTER MIDNIGHT.
* RIDGES/UPR SLOPES....WEST WINDS 6 TO 12 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 20 MPH DECREASING TO AROUND 10
MPH AFTER MIDNIGHT.
* VENTILATION INDEX...MODERATE (269-441) DECREASING TO LOW
(101-153) AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF SNOW
SHOWERS IN THE MORNING. A SLIGHT CHANCE OF SHOWERS.
* MAX TEMPERATURE.....50-59...EXCEPT 42-50 RIDGES.
* MIN HUMIDITY........53-68 PERCENT...EXCEPT 66-81 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 3 TO 8 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 3 TO 8 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
* VENTILATION INDEX...LOW TO MODERATE (146-206) INCREASING TO
MODERATE (285-445) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
WARMER. A SLIGHT CHANCE OF SHOWERS. MOSTLY CLOUDY.
LOWS 36 TO 43. HIGHS 59 TO 72. NORTHWEST WINDS 4 TO 10 MPH.
THURSDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 43 TO
50. HIGHS 65 TO 79. NORTHWEST WINDS 2 TO 7 MPH.
FRIDAY
COOLER. MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. LOWS 42 TO 51. HIGHS 48 TO 62.
WEST WINDS 7 TO 13 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 34 TO 41. HIGHS 48 TO 61. WEST
WINDS 8 TO 14 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 31 TO 39. HIGHS 53 TO 66. WEST
WINDS 4 TO 9 MPH.
WAZ690-252315-
KITTITAS VALLEY-
556 AM PDT MON MAY 25 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY.
* MAX TEMPERATURE.....69-77...EXCEPT 61-70 RIDGES.
* MIN HUMIDITY........22-30 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH WINDS 4 TO 9 MPH INCREASING TO
SOUTHWEST 11 TO 17 MPH WITH GUSTS UP TO 35 MPH IN THE
AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 6 TO 12 MPH INCREASING TO 12
TO 18 MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH INCREASING TO AROUND
25 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW (85-153) INCREASING TO VERY HIGH
(1041-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING, THEN A SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT.
* MIN TEMPERATURE.....41-46.
* MAX HUMIDITY........66-81 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 7 TO 13 MPH. GUSTS TO 30 MPH IN
THE EVENING.
* RIDGES/UPR SLOPES....WEST WINDS 7 TO 13 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 20 MPH BECOMING NORTHWEST AROUND
10 MPH AFTER MIDNIGHT.
* VENTILATION INDEX...MODERATE TO HIGH (439-647) DECREASING TO LOW
(55-129) AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........MOSTLY CLOUDY.
* MAX TEMPERATURE.....59-67...EXCEPT 50-59 RIDGES.
* MIN HUMIDITY........39-54 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 4 TO 10 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 9 TO 15 MPH DECREASING TO 5
TO 8 MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
* VENTILATION INDEX...LOW TO MODERATE (161-275) INCREASING TO
MODERATE TO HIGH (379-547) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
WARMER. A SLIGHT CHANCE OF SHOWERS. MOSTLY CLOUDY.
LOWS 44 TO 49. HIGHS 72 TO 80. NORTHWEST WINDS 7 TO 13 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 50 TO 55. HIGHS 77 TO 85.
NORTHWEST WINDS 4 TO 9 MPH.
FRIDAY
COOLER. MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. LOWS 52 TO 57. HIGHS 63 TO 72.
NORTHWEST WINDS 12 TO 18 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 42 TO 47. HIGHS 62 TO 71. WEST
WINDS 12 TO 18 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 40 TO 45. HIGHS 65 TO 73. WEST WINDS
7 TO 13 MPH.
WAZ694-252315-
YAKAMA ALPINE DISTRICT-
556 AM PDT MON MAY 25 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN
THE AFTERNOON.
* MAX TEMPERATURE.....62-70...EXCEPT 51-64 RIDGES.
* MIN HUMIDITY........26-41 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 5 TO 11 MPH INCREASING TO
WEST 13 TO 19 MPH WITH GUSTS UP TO 45 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 5 TO 11 MPH INCREASING TO
WEST 11 TO 17 MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH INCREASING TO AROUND
30 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW TO MODERATE (126-208) INCREASING TO VERY
HIGH (838-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS.
* MIN TEMPERATURE.....35-41.
* MAX HUMIDITY........79-94 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 9 TO 15 MPH WITH GUSTS UP TO 45
MPH BECOMING SOUTHWEST 2 TO 7 MPH AFTER MIDNIGHT.
* RIDGES/UPR SLOPES....WEST WINDS 7 TO 13 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 25 MPH DECREASING TO AROUND 10
MPH AFTER MIDNIGHT.
* VENTILATION INDEX...MODERATE (317-483) DECREASING TO LOW (49-119)
AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY. A
SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE.....56-63...EXCEPT 45-57 RIDGES.
* MIN HUMIDITY........42-57 PERCENT...EXCEPT 54-69 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 1 TO 6 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.......7000 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
* VENTILATION INDEX...LOW (117-169) INCREASING TO MODERATE
(301-461) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
WARMER. A SLIGHT CHANCE OF SHOWERS. MOSTLY CLOUDY.
LOWS 37 TO 44. HIGHS 63 TO 75. NORTHWEST WINDS 1 TO 6 MPH.
THURSDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
44 TO 51. HIGHS 69 TO 80. NORTHWEST WINDS 1 TO 6 MPH.
FRIDAY
COOLER. MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. LOWS 44 TO 52. HIGHS 52 TO 66.
WEST WINDS 7 TO 13 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 34 TO 41. HIGHS 53 TO 66. WEST
WINDS 6 TO 12 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 32 TO 39. HIGHS 57 TO 70. WEST WINDS
3 TO 8 MPH.
ORZ691-WAZ691-252315-
LOWER COLUMBIA BASIN OF OREGON-LOWER COLUMBIA BASIN OF WASHINGTON-
556 AM PDT MON MAY 25 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY.
* MAX TEMPERATURE.....74-84...EXCEPT 67-79 RIDGES.
* MIN HUMIDITY........22-30 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 3 TO 8 MPH INCREASING TO
WEST 10 TO 16 MPH WITH GUSTS UP TO 35 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 5 TO 11 MPH INCREASING TO
WEST 13 TO 19 MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH INCREASING TO WEST
AROUND 20 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW (63-143) INCREASING TO HIGH TO VERY HIGH
(633-1047) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS.
* MIN TEMPERATURE.....41-46.
* MAX HUMIDITY........73-88 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT...EXCEPT GOOD RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 11 TO 17 MPH WITH GUSTS UP TO 35
MPH BECOMING SOUTHWEST 5 TO 11 MPH AFTER MIDNIGHT.
* RIDGES/UPR SLOPES....WEST WINDS 15 TO 21 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 AROUND 25 MPH BECOMING SOUTHWEST AROUND
15 MPH AFTER MIDNIGHT.
* VENTILATION INDEX...MODERATE TO HIGH (449-693) DECREASING TO LOW
(68-190) AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........MOSTLY CLOUDY.
* MAX TEMPERATURE.....59-68...EXCEPT 56-63 RIDGES.
* MIN HUMIDITY........38-52 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 4 TO 9 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 4 TO 10 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
* VENTILATION INDEX...LOW TO MODERATE (140-242) INCREASING TO
MODERATE TO HIGH (248-622) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 43 TO
48. HIGHS 68 TO 79. WEST WINDS 4 TO 10 MPH.
THURSDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 47 TO 53. HIGHS 75 TO 85. WEST WINDS 2 TO
7 MPH.
FRIDAY
COOLER. MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. LOWS 50 TO 55. HIGHS 64 TO 75.
SOUTHWEST WINDS 10 TO 16 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 42 TO 47. HIGHS 64 TO 73. WEST
WINDS 9 TO 15 MPH.
SUNDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
40 TO 45. HIGHS 67 TO 74. WEST WINDS 4 TO 9 MPH.
ORZ692-WAZ692-252315-
NORTHERN BLUE MOUNTAINS OF OREGON-BLUE MOUNTAINS OF WASHINGTON-
556 AM PDT MON MAY 25 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....74-82...EXCEPT 68-74 RIDGES.
* MIN HUMIDITY........27-36 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING WEST 5 TO
11 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING WEST 4 TO 10
MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 5 MPH INCREASING TO SOUTHWEST
AROUND 15 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW (35-85) INCREASING TO MODERATE TO VERY
HIGH (354-880) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT.
* MIN TEMPERATURE.....36-43.
* MAX HUMIDITY........90-100 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 7 TO 13 MPH WITH GUSTS UP TO
30 MPH SHIFTING TO THE WEST 2 TO 7 MPH AFTER MIDNIGHT.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 10 TO 16 MPH BECOMING WEST 4
TO 10 MPH AFTER MIDNIGHT.
* CWR.................30 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 20 MPH BECOMING WEST AROUND
10 MPH AFTER MIDNIGHT.
* VENTILATION INDEX...MODERATE TO HIGH (338-514) DECREASING TO LOW
TO MODERATE (144-204) AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........CLOUDY. SHOWERS LIKELY AND A SLIGHT CHANCE OF
SNOW SHOWERS IN THE MORNING, THEN A CHANCE OF SHOWERS IN THE
AFTERNOON.
* MAX TEMPERATURE.....48-58...EXCEPT 42-47 RIDGES.
* MIN HUMIDITY........59-73 PERCENT...EXCEPT 70-85 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 1 TO 5 MPH IN THE MORNING
BECOMING UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 2 TO 6 MPH IN THE MORNING
BECOMING LIGHT LESS THAN 5 MPH.
* CWR.................20 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......4500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (98-144) INCREASING TO LOW (101-189) IN
THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
WARMER. MOSTLY CLOUDY WITH SHOWERS LIKELY. LOWS
38 TO 45. HIGHS 57 TO 66. NORTHWEST WINDS UP TO 5 MPH.
THURSDAY
A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS. MOSTLY CLOUDY. LOWS 43 TO 50. HIGHS 65 TO 75.
NORTHWEST WINDS UP TO 5 MPH.
FRIDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A SLIGHT CHANCE
OF THUNDERSTORMS. LOWS 46 TO 54. HIGHS 56 TO 66. SOUTHWEST WINDS
3 TO 8 MPH.
SATURDAY
A SLIGHT CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 39 TO
46. HIGHS 56 TO 66. WEST WINDS 3 TO 8 MPH.
SUNDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
36 TO 43. HIGHS 58 TO 68. WEST WINDS 1 TO 6 MPH.
ORZ693-WAZ693-252315-
CANYON GRASSLANDS OF WALLOWA COUNTY-
SOUTHEAST WASHINGTON GRANDE RONDE VALLEY-
556 AM PDT MON MAY 25 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
* MAX TEMPERATURE.....77-86...EXCEPT 73-78 RIDGES.
* MIN HUMIDITY........21-27 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS UP TO 5 MPH INCREASING TO 6
TO 12 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTH WINDS 7 TO 13 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......11500 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 5 MPH INCREASING TO SOUTHWEST
AROUND 20 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW (25-81) INCREASING TO VERY HIGH
(826-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SHOWERS
LIKELY AFTER MIDNIGHT.
* MIN TEMPERATURE.....37-45.
* MAX HUMIDITY........84-99 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.................10 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......1000 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
* VENTILATION INDEX...MODERATE (248-384) DECREASING TO LOW TO
MODERATE (121-209) AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........CLOUDY. SHOWERS LIKELY IN THE MORNING, THEN A
CHANCE OF SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE.....48-58...EXCEPT 44-51 RIDGES.
* MIN HUMIDITY........59-74 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 2 TO 7 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 3 TO 8 MPH.
* CWR.................20 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......3000 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 10 MPH.
* VENTILATION INDEX...LOW (104-152) INCREASING TO LOW (110-198) IN
THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
WARMER. MOSTLY CLOUDY WITH SHOWERS. LOWS 37 TO 45.
HIGHS 59 TO 68. NORTH WINDS 3 TO 8 MPH.
THURSDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 41 TO 50. HIGHS 68 TO 77. NORTH
WINDS 1 TO 6 MPH.
FRIDAY
SHOWERS AND A CHANCE OF THUNDERSTORMS. LOWS 44 TO 53.
HIGHS 60 TO 70. SOUTHWEST WINDS 1 TO 6 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 39 TO 48. HIGHS 61 TO 69. WEST
WINDS 2 TO 7 MPH.
SUNDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 37 TO 45. HIGHS 63 TO 71. NORTHWEST WINDS
1 TO 6 MPH.
ORZ701-252315-
EASTERN COLUMBIA RIVER GORGE OF OREGON-
556 AM PDT MON MAY 25 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
AFTERNOON.
* MAX TEMPERATURE.....71-76...EXCEPT 65-73 RIDGES.
* MIN HUMIDITY........29-42 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 2 TO 7 MPH INCREASING TO 11 TO 17
MPH WITH GUSTS UP TO 35 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....WEST WINDS 1 TO 6 MPH INCREASING TO 9 TO 15
MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 10 MPH INCREASING TO AROUND 25
MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW (66-132) INCREASING TO VERY HIGH
(852-1026) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
SLIGHT CHANCE OF SHOWERS.
* MIN TEMPERATURE.....39-44.
* MAX HUMIDITY........77-92 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 8 TO 14 MPH WITH GUSTS UP TO 30
MPH BECOMING SOUTHWEST 2 TO 7 MPH AFTER MIDNIGHT. IN THE
EASTERN COLUMBIA RIVER GORGE, WEST WINDS 9 TO 15 MPH WITH
GUSTS UP TO 30 MPH DECREASING TO 4 TO 9 MPH AFTER MIDNIGHT.
* RIDGES/UPR SLOPES....WEST WINDS 7 TO 13 MPH SHIFTING TO THE
SOUTHWEST 2 TO 7 MPH AFTER MIDNIGHT.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 20 MPH DECREASING TO AROUND 10
MPH AFTER MIDNIGHT.
* VENTILATION INDEX...MODERATE (263-415) DECREASING TO LOW (32-56)
AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY. A
SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE.....60-66...EXCEPT 56-61 RIDGES.
* MIN HUMIDITY........43-54 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 4 TO 9 MPH...EXCEPT WEST 4 TO 10
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.......7000 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
* VENTILATION INDEX...LOW TO MODERATE (123-209) INCREASING TO
MODERATE TO VERY HIGH (490-742) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
A SLIGHT CHANCE OF SHOWERS. MOSTLY CLOUDY. LOWS
42 TO 47. HIGHS 68 TO 73. WEST WINDS 6 TO 12 MPH.
THURSDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
46 TO 52. HIGHS 75 TO 80. WEST WINDS 3 TO 8 MPH.
FRIDAY
COOLER. MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. LOWS 47 TO 53. HIGHS 61 TO 67.
WEST WINDS 12 TO 18 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 39 TO 45. HIGHS 62 TO 68. WEST
WINDS 8 TO 14 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 37 TO 43. HIGHS 68 TO 73. WEST WINDS
4 TO 10 MPH.
ORZ702-252315-
EAST SLOPES OF THE MT. HOOD NATIONAL FOREST-
556 AM PDT MON MAY 25 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN
THE AFTERNOON.
* MAX TEMPERATURE.....65-73...EXCEPT 58-67 RIDGES.
* MIN HUMIDITY........30-44 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS UP TO 5 MPH INCREASING TO
WEST 7 TO 13 MPH WITH GUSTS UP TO 35 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 1 TO 6 MPH SHIFTING TO THE
WEST 6 TO 12 MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH INCREASING TO AROUND
30 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW TO MODERATE (152-212) INCREASING TO VERY
HIGH (895-1049) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING, THEN A CHANCE OF RAIN AND SNOW SHOWERS AFTER MIDNIGHT.
* MIN TEMPERATURE.....33-40.
* MAX HUMIDITY........80-95 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 4 TO 10 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 5 TO 11 MPH DECREASING TO UP TO 5
MPH AFTER MIDNIGHT.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 20 MPH DECREASING TO AROUND 10
MPH AFTER MIDNIGHT.
* VENTILATION INDEX...MODERATE (321-425) DECREASING TO LOW (56-142)
AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF RAIN AND
SNOW SHOWERS IN THE MORNING, THEN A CHANCE OF SHOWERS IN THE
AFTERNOON.
* MAX TEMPERATURE.....53-61...EXCEPT 47-56 RIDGES.
* MIN HUMIDITY........43-56 PERCENT...EXCEPT 55-70 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING NORTHWEST 1
TO 5 MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
* VENTILATION INDEX...LOW (133-185) INCREASING TO MODERATE
(339-495) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
36 TO 43. HIGHS 57 TO 70. NORTHWEST WINDS 2 TO 7 MPH.
THURSDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 42 TO 49. HIGHS 65 TO 78. NORTHWEST
WINDS UP TO 5 MPH.
FRIDAY
COOLER. MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
42 TO 50. HIGHS 50 TO 63. WEST WINDS 7 TO 13 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 33 TO 40. HIGHS 51 TO 64. WEST
WINDS 4 TO 10 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 31 TO 39. HIGHS 58 TO 69. NORTHWEST
WINDS 1 TO 6 MPH.
ORZ695-252315-
EAGLE CAP WILDERNESS-
556 AM PDT MON MAY 25 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
* MAX TEMPERATURE.....74-85...EXCEPT 63-74 RIDGES.
* MIN HUMIDITY........21-30 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH WINDS 2 TO 7 MPH INCREASING TO
SOUTHWEST 8 TO 14 MPH WITH GUSTS UP TO 30 MPH IN THE
AFTERNOON.
* RIDGES/UPR SLOPES....SOUTH WINDS 6 TO 12 MPH INCREASING TO 13 TO
19 MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......10500 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 10 MPH INCREASING TO SOUTHWEST
AROUND 30 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW (55-175) INCREASING TO VERY HIGH
(1049-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN A CHANCE OF RAIN AND SNOW
SHOWERS AFTER MIDNIGHT.
* MIN TEMPERATURE.....36-45...EXCEPT 31-40 RIDGES.
* MAX HUMIDITY........85-100 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 7 TO 13 MPH. GUSTS TO 30 MPH
IN THE EVENING.
* RIDGES/UPR SLOPES....NORTH WINDS 7 TO 13 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 15 TO 20 MPH.
* VENTILATION INDEX...LOW TO MODERATE (97-367) DECREASING TO LOW
(73-191) AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN AND SNOW SHOWERS LIKELY
IN THE MORNING, THEN A CHANCE OF RAIN AND SNOW SHOWERS IN THE
AFTERNOON.
* MAX TEMPERATURE.....45-58...EXCEPT 36-48 RIDGES.
* MIN HUMIDITY........60-75 PERCENT...EXCEPT 75-90 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 3 TO 8 MPH.
* RIDGES/UPR SLOPES....NORTH WINDS 3 TO 8 MPH.
* CWR.................30 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......3000 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 10 MPH.
* VENTILATION INDEX...LOW (87-175) INCREASING TO LOW (112-188) IN
THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
WARMER. MOSTLY CLOUDY WITH RAIN AND SNOW SHOWERS.
LOWS 33 TO 42. HIGHS 51 TO 66. NORTH WINDS 7 TO 13 MPH.
THURSDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE OF
THUNDERSTORMS. LOWS 39 TO 47. HIGHS 60 TO 75. NORTH WINDS 3 TO
8 MPH.
FRIDAY
COOLER. SHOWERS AND A CHANCE OF THUNDERSTORMS. LOWS
41 TO 50. HIGHS 50 TO 64. WEST WINDS 2 TO 7 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 35 TO 44. HIGHS 51 TO 66. WEST
WINDS 2 TO 7 MPH.
SUNDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 33 TO 41. HIGHS 54 TO 69. NORTHWEST WINDS
1 TO 6 MPH.
ORZ694-252315-
GRANDE RONDE VALLEY OF OREGON-
556 AM PDT MON MAY 25 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
* MAX TEMPERATURE.....82-87.
* MIN HUMIDITY........21-27 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH WINDS 2 TO 7 MPH INCREASING TO
SOUTHWEST 8 TO 14 MPH WITH GUSTS UP TO 25 MPH IN THE
AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHEAST WINDS 2 TO 7 MPH INCREASING TO
SOUTH 10 TO 16 MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......11000 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 5 MPH INCREASING TO AROUND 20
MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW (25-45) INCREASING TO VERY HIGH
(935-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN
THE EVENING, THEN A CHANCE OF SHOWERS AFTER MIDNIGHT.
* MIN TEMPERATURE.....37-42.
* MAX HUMIDITY........93-100 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 13 TO 19 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 13 TO 19 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......1000 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 20 TO 25 MPH.
* VENTILATION INDEX...MODERATE TO HIGH (420-654) DECREASING TO LOW
TO MODERATE (188-306) AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........CLOUDY. SHOWERS LIKELY.
* MAX TEMPERATURE.....52-57.
* MIN HUMIDITY........59-65 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 7 TO 13 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 7 TO 13 MPH.
* CWR.................40 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......2500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH.
* VENTILATION INDEX...LOW TO MODERATE (140-248) INCREASING TO LOW
TO MODERATE (173-245) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
WARMER. MOSTLY CLOUDY WITH SHOWERS. LOWS 37 TO 42.
HIGHS 65 TO 70. NORTHWEST WINDS 10 TO 16 MPH.
THURSDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 42 TO 47. HIGHS 74 TO 79. NORTHWEST WINDS
6 TO 12 MPH.
FRIDAY
COOLER. SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS.
LOWS 45 TO 50. HIGHS 64 TO 69. SOUTHWEST WINDS 2 TO 7 MPH.
SATURDAY
A CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 39 TO 44.
HIGHS 64 TO 69. NORTHWEST WINDS 3 TO 8 MPH.
SUNDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
36 TO 41. HIGHS 67 TO 72. NORTHWEST WINDS 2 TO 7 MPH.
ORZ699-252315-
WESTERN FORESTED BLUE MOUNTAINS-
556 AM PDT MON MAY 25 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....75-82...EXCEPT 70-76 RIDGES.
* MIN HUMIDITY........19-27 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 5 TO 11 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 5 TO 11 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......11500 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 10 MPH INCREASING TO SOUTHWEST
AROUND 25 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW TO MODERATE (124-216) INCREASING TO VERY
HIGH (1004-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING, THEN SHOWERS AND A CHANCE OF SNOW SHOWERS AFTER
MIDNIGHT.
* MIN TEMPERATURE.....34-39.
* MAX HUMIDITY........87-100 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.................50 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......1000 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
* VENTILATION INDEX...MODERATE TO HIGH (325-505) DECREASING TO LOW
TO MODERATE (153-211) AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........CLOUDY. RAIN AND SNOW SHOWERS LIKELY IN THE
MORNING, THEN A CHANCE OF RAIN AND SNOW SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE.....48-54...EXCEPT 41-49 RIDGES.
* MIN HUMIDITY........54-69 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 2 TO 7 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 2 TO 7 MPH.
* CWR.................20 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
* VENTILATION INDEX...LOW (144-196) INCREASING TO MODERATE
(204-448) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
MOSTLY CLOUDY WITH A CHANCE OF RAIN AND SNOW
SHOWERS. LOWS 35 TO 40. HIGHS 54 TO 63. NORTHWEST WINDS 4 TO
9 MPH.
THURSDAY
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS. MOSTLY
CLOUDY. LOWS 39 TO 45. HIGHS 64 TO 73. NORTH WINDS 1 TO 6 MPH.
FRIDAY
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS. LOWS
43 TO 49. HIGHS 55 TO 64. WEST WINDS 1 TO 6 MPH.
SATURDAY
A CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 36 TO 41.
HIGHS 56 TO 65. WEST WINDS 2 TO 7 MPH.
SUNDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
34 TO 39. HIGHS 59 TO 67. NORTHWEST WINDS UP TO 5 MPH.
ORZ696-252315-
JOHN DAY VALLEY-
556 AM PDT MON MAY 25 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
* MAX TEMPERATURE.....77-86...EXCEPT 72-77 RIDGES.
* MIN HUMIDITY........16-21 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 7 TO 13 MPH WITH GUSTS UP TO
30 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 7 TO 13 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......12000 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 10 MPH INCREASING TO SOUTHWEST
AROUND 25 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW TO MODERATE (142-256) INCREASING TO VERY
HIGH (1044-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS.
* MIN TEMPERATURE.....37-42.
* MAX HUMIDITY........78-93 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 6 TO 12 MPH. GUSTS TO 30 MPH
IN THE EVENING.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 6 TO 12 MPH.
* CWR.................60 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......1000 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 20 MPH DECREASING TO AROUND
10 MPH AFTER MIDNIGHT.
* VENTILATION INDEX...MODERATE TO HIGH (416-618) DECREASING TO LOW
TO MODERATE (168-226) AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF RAIN AND SNOW
SHOWERS IN THE MORNING, THEN A SLIGHT CHANCE OF SHOWERS IN THE
AFTERNOON.
* MAX TEMPERATURE.....51-59...EXCEPT 46-51 RIDGES.
* MIN HUMIDITY........43-55 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 1 TO 6 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 2 TO 7 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
* VENTILATION INDEX...LOW TO MODERATE (166-204) INCREASING TO
MODERATE TO HIGH (432-596) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 37 TO
42. HIGHS 59 TO 67. NORTHWEST WINDS 4 TO 9 MPH.
THURSDAY
A CHANCE OF SHOWERS AND THUNDERSTORMS. MOSTLY CLOUDY.
LOWS 41 TO 46. HIGHS 68 TO 77. NORTHWEST WINDS 2 TO 7 MPH.
FRIDAY
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS. LOWS
44 TO 50. HIGHS 59 TO 68. WEST WINDS 3 TO 8 MPH.
SATURDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
38 TO 43. HIGHS 60 TO 69. WEST WINDS 2 TO 7 MPH.
SUNDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
35 TO 40. HIGHS 64 TO 73. NORTHWEST WINDS 1 TO 6 MPH.
ORZ700-252315-
CENTRAL MOUNTAINS OF OREGON-
556 AM PDT MON MAY 25 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
* MAX TEMPERATURE.....76-82...EXCEPT 70-75 RIDGES.
* MIN HUMIDITY........15-21 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH WINDS 5 TO 11 MPH INCREASING TO
SOUTHWEST 12 TO 18 MPH IN THE AFTERNOON. GUSTS TO 30 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 7 TO 13 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......11500 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 15 MPH INCREASING TO SOUTHWEST
AROUND 30 MPH IN THE AFTERNOON.
* VENTILATION INDEX...MODERATE (208-332) INCREASING TO VERY HIGH
(1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS. A SLIGHT
CHANCE OF SNOW SHOWERS AFTER MIDNIGHT.
* MIN TEMPERATURE.....32-39.
* MAX HUMIDITY........74-88 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 6 TO 12 MPH. GUSTS TO 30 MPH IN
THE EVENING.
* RIDGES/UPR SLOPES....WEST WINDS 6 TO 12 MPH.
* CWR.................20 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....WEST 15 TO 20 MPH.
* VENTILATION INDEX...MODERATE TO HIGH (434-672) DECREASING TO LOW
TO MODERATE (139-291) AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF RAIN AND SNOW
SHOWERS IN THE MORNING. A CHANCE OF SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE.....52-60...EXCEPT 45-50 RIDGES.
* MIN HUMIDITY........39-46 PERCENT...EXCEPT 45-59 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 3 TO 8 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 3 TO 8 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
* VENTILATION INDEX...LOW TO MODERATE (156-280) INCREASING TO HIGH
TO VERY HIGH (554-762) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 32 TO
40. HIGHS 58 TO 67. NORTHWEST WINDS 5 TO 11 MPH.
THURSDAY
A CHANCE OF SHOWERS AND THUNDERSTORMS. MOSTLY CLOUDY.
LOWS 37 TO 44. HIGHS 68 TO 76. NORTH WINDS 4 TO 9 MPH.
FRIDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE OF
THUNDERSTORMS. LOWS 40 TO 47. HIGHS 60 TO 66. NORTHWEST WINDS
5 TO 11 MPH.
SATURDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
32 TO 39. HIGHS 61 TO 67. WEST WINDS 3 TO 8 MPH.
SUNDAY
A SLIGHT CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 30 TO
37. HIGHS 65 TO 70. NORTHWEST WINDS 1 TO 6 MPH.
ORZ703-252315-
WARM SPRINGS RESERVATION-
556 AM PDT MON MAY 25 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN
THE AFTERNOON.
* MAX TEMPERATURE.....68-79...EXCEPT 55-67 RIDGES.
* MIN HUMIDITY........24-35 PERCENT...EXCEPT 34-49 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 2 TO 7 MPH INCREASING TO
WEST 12 TO 18 MPH WITH GUSTS UP TO 40 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 10 TO 16 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH INCREASING TO AROUND
30 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW TO MODERATE (137-219) INCREASING TO VERY
HIGH (1008-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF SHOWERS. A CHANCE OF SNOW SHOWERS AFTER MIDNIGHT.
* MIN TEMPERATURE.....38-43...EXCEPT 33-38 RIDGES.
* MAX HUMIDITY........71-82 PERCENT...EXCEPT 80-95 PERCENT RIDGES.
* HUMIDITY RECOVERY...GOOD...EXCEPT EXCELLENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 7 TO 13 MPH WITH GUSTS UP TO 35
MPH DECREASING TO 2 TO 7 MPH AFTER MIDNIGHT.
* RIDGES/UPR SLOPES....WEST WINDS 11 TO 17 MPH DECREASING TO 5 TO
11 MPH AFTER MIDNIGHT.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 20 MPH DECREASING TO AROUND 10
MPH AFTER MIDNIGHT.
* VENTILATION INDEX...MODERATE TO HIGH (443-537) DECREASING TO LOW
(32-130) AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN
THE MORNING. A CHANCE OF SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE.....55-64...EXCEPT 43-52 RIDGES.
* MIN HUMIDITY........38-53 PERCENT...EXCEPT 59-74 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 3 TO 8 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 3 TO 8 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
* VENTILATION INDEX...LOW TO MODERATE (122-206) INCREASING TO
MODERATE TO HIGH (434-656) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
38 TO 43. HIGHS 59 TO 72. NORTHWEST WINDS 5 TO 11 MPH.
THURSDAY
A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS. PARTLY CLOUDY. LOWS 43 TO 48. HIGHS 69 TO 81.
NORTHWEST WINDS 4 TO 9 MPH.
FRIDAY
COOLER. MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. LOWS 43 TO 49. HIGHS 54 TO 68.
WEST WINDS 9 TO 15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 36 TO 41. HIGHS 56 TO 69. WEST
WINDS 5 TO 11 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 33 TO 38. HIGHS 62 TO 73. NORTHWEST
WINDS 4 TO 9 MPH.
ORZ704-252315-
NORTHERN DESCHUTES NATIONAL FOREST-
556 AM PDT MON MAY 25 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN
THE AFTERNOON.
* MAX TEMPERATURE.....69-75...EXCEPT 55-66 RIDGES.
* MIN HUMIDITY........27-33 PERCENT...EXCEPT 34-49 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 3 TO 8 MPH INCREASING TO
WEST 11 TO 17 MPH WITH GUSTS UP TO 45 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 9 TO 15 MPH INCREASING TO
WEST 14 TO 24 MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH INCREASING TO AROUND
30 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW TO MODERATE (191-277) INCREASING TO VERY
HIGH (994-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SNOW SHOWERS IN
THE EVENING. A CHANCE OF SHOWERS. SNOW SHOWERS LIKELY AFTER
MIDNIGHT.
* MIN TEMPERATURE.....30-36.
* MAX HUMIDITY........79-94 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 7 TO 13 MPH WITH GUSTS UP TO 45
MPH DECREASING TO 1 TO 6 MPH AFTER MIDNIGHT.
* RIDGES/UPR SLOPES....WEST WINDS 12 TO 18 MPH DECREASING TO 5 TO
11 MPH AFTER MIDNIGHT.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 25 MPH DECREASING TO AROUND 15
MPH AFTER MIDNIGHT.
* VENTILATION INDEX...MODERATE TO HIGH (448-562) DECREASING TO LOW
(66-158) AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF RAIN AND SNOW
SHOWERS.
* MAX TEMPERATURE.....54-59...EXCEPT 40-51 RIDGES.
* MIN HUMIDITY........45-56 PERCENT...EXCEPT 64-79 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING NORTHWEST 2
TO 5 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....WEST WINDS 2 TO 7 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
* VENTILATION INDEX...LOW (144-192) INCREASING TO MODERATE TO HIGH
(360-508) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 32 TO
38. HIGHS 52 TO 66. NORTHWEST WINDS 4 TO 9 MPH.
THURSDAY
A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS. MOSTLY CLOUDY. LOWS 37 TO 43. HIGHS 62 TO 76.
NORTHWEST WINDS 2 TO 7 MPH.
FRIDAY
COOLER. MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. LOWS 39 TO 45. HIGHS 50 TO 63.
WEST WINDS 5 TO 11 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 33 TO 38. HIGHS 52 TO 65. WEST
WINDS 3 TO 8 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 28 TO 34. HIGHS 58 TO 70. NORTH
WINDS 1 TO 6 MPH.
ORZ705-252315-
SOUTHERN DESCHUTES NATIONAL FOREST-
556 AM PDT MON MAY 25 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY.
* MAX TEMPERATURE.....70-75...EXCEPT 59-69 RIDGES.
* MIN HUMIDITY........18-33 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 7 TO 13 MPH WITH GUSTS UP TO
30 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 8 TO 14 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......9500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH INCREASING TO AROUND
30 MPH IN THE AFTERNOON.
* VENTILATION INDEX...MODERATE (273-357) INCREASING TO VERY HIGH
(1017-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. A CHANCE OF SNOW SHOWERS. A SLIGHT CHANCE OF SHOWERS
AFTER MIDNIGHT.
* MIN TEMPERATURE.....29-34.
* MAX HUMIDITY........79-94 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 4 TO 10 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 4 TO 10 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....WEST 15 TO 20 MPH.
* VENTILATION INDEX...MODERATE TO HIGH (422-678) DECREASING TO LOW
TO MODERATE (186-278) AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN
THE MORNING. A CHANCE OF SNOW SHOWERS. A CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....49-54...EXCEPT 39-47 RIDGES.
* MIN HUMIDITY........45-58 PERCENT...EXCEPT 59-74 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING NORTHWEST 2
TO 7 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 2 TO 7 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
* VENTILATION INDEX...LOW TO MODERATE (168-272) INCREASING TO
MODERATE TO HIGH (424-658) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
MOSTLY CLOUDY WITH A CHANCE OF RAIN AND SNOW
SHOWERS. LOWS 30 TO 35. HIGHS 50 TO 60. NORTHWEST WINDS 4 TO
10 MPH.
THURSDAY
WARMER. MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 34 TO 39. HIGHS 63 TO 72. NORTH WINDS 3 TO
8 MPH.
FRIDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE OF
THUNDERSTORMS. LOWS 37 TO 42. HIGHS 53 TO 63. NORTHWEST WINDS
2 TO 7 MPH.
SATURDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
31 TO 36. HIGHS 55 TO 65. WEST WINDS 1 TO 6 MPH.
SUNDAY
A SLIGHT CHANCE OF SHOWERS. MOSTLY CLEAR. LOWS 26 TO
32. HIGHS 60 TO 69. NORTHWEST WINDS 1 TO 6 MPH.
ORZ697-252315-
CENTRAL BLUE MOUNTAINS-
556 AM PDT MON MAY 25 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....75-80...EXCEPT 70-76 RIDGES.
* MIN HUMIDITY........15-20 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH WINDS 4 TO 9 MPH SHIFTING TO THE
SOUTHWEST 9 TO 15 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 4 TO 9 MPH INCREASING TO 9
TO 15 MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......11500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH INCREASING TO AROUND
30 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW TO MODERATE (166-280) INCREASING TO VERY
HIGH (1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS. A CHANCE
OF SNOW SHOWERS AFTER MIDNIGHT.
* MIN TEMPERATURE.....32-38.
* MAX HUMIDITY........82-97 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 6 TO 12 MPH. GUSTS TO 30 MPH
IN THE EVENING.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 6 TO 12 MPH.
* CWR.................30 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......1000 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 15 TO 20 MPH.
* VENTILATION INDEX...MODERATE TO VERY HIGH (475-713) DECREASING TO
LOW TO MODERATE (168-240) AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........CLOUDY. SHOWERS LIKELY IN THE MORNING. A
CHANCE OF SNOW SHOWERS. A SLIGHT CHANCE OF SHOWERS IN THE
AFTERNOON.
* MAX TEMPERATURE.....48-53...EXCEPT 43-48 RIDGES.
* MIN HUMIDITY........51-62 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 4 TO 9 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 4 TO 9 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......5000 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH.
* VENTILATION INDEX...LOW TO MODERATE (176-226) INCREASING TO
MODERATE (308-498) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
WARMER. SHOWERS LIKELY AND A SLIGHT CHANCE OF SNOW
SHOWERS. LOWS 32 TO 37. HIGHS 55 TO 62. NORTH WINDS 6 TO 12 MPH.
THURSDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE OF
THUNDERSTORMS. LOWS 37 TO 42. HIGHS 64 TO 70. NORTH WINDS 3 TO
8 MPH.
FRIDAY
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS. LOWS
40 TO 46. HIGHS 55 TO 61. NORTHWEST WINDS 1 TO 6 MPH.
SATURDAY
A SLIGHT CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 34 TO
39. HIGHS 57 TO 63. WEST WINDS 2 TO 7 MPH.
SUNDAY
A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. PARTLY
CLOUDY. LOWS 32 TO 38. HIGHS 61 TO 67. NORTHWEST WINDS 1 TO
6 MPH.
ORZ698-252315-
SOUTHERN BLUE MOUNTAINS-
556 AM PDT MON MAY 25 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....75-80...EXCEPT 70-75 RIDGES.
* MIN HUMIDITY........12-17 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 4 TO 9 MPH INCREASING TO 9
TO 15 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 5 TO 11 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......11500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH INCREASING TO AROUND
30 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW TO MODERATE (130-252) INCREASING TO VERY
HIGH (1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING, THEN RAIN AND SNOW SHOWERS LIKELY AFTER MIDNIGHT.
* MIN TEMPERATURE.....33-40.
* MAX HUMIDITY........79-93 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 8 TO 14 MPH. GUSTS TO 30 MPH
IN THE EVENING.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 8 TO 14 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 25 MPH BECOMING NORTHWEST AROUND
15 MPH AFTER MIDNIGHT.
* VENTILATION INDEX...HIGH TO VERY HIGH (599-883) DECREASING TO
MODERATE (235-313) AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF RAIN AND SNOW
SHOWERS IN THE MORNING, THEN A SLIGHT CHANCE OF SHOWERS IN THE
AFTERNOON.
* MAX TEMPERATURE.....49-56.
* MIN HUMIDITY........42-51 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 4 TO 9 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 4 TO 9 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH.
* VENTILATION INDEX...MODERATE (234-324) INCREASING TO MODERATE TO
HIGH (488-674) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 32 TO
37. HIGHS 57 TO 65. NORTH WINDS 9 TO 15 MPH.
THURSDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE OF
THUNDERSTORMS. LOWS 36 TO 42. HIGHS 66 TO 72. NORTH WINDS 4 TO
9 MPH.
FRIDAY
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS. LOWS
39 TO 45. HIGHS 59 TO 65. NORTHWEST WINDS 3 TO 8 MPH.
SATURDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
34 TO 40. HIGHS 60 TO 66. WEST WINDS 3 TO 8 MPH.
SUNDAY
A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. PARTLY
CLOUDY. LOWS 32 TO 39. HIGHS 64 TO 69. WEST WINDS UP TO 5 MPH.
8-14 DAY OUTLOOK FOR MONDAY JUNE 1 THROUGH SUNDAY JUNE 7
A GREATER CHANCE OF ABOVE NORMAL TEMPERATURES AND NEAR NORMAL
PRECIPITATION.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page