233
FNUS56 KPDT 222034
FWFPDT
FIRE WEATHER PLANNING FORECAST FOR NE OREGON AND SE WASHINGTON
NATIONAL WEATHER SERVICE PENDLETON OR
134 PM PDT TUE JUL 22 2025
...BREEZY TO WINDY WITH LOCALLY LOW RH THROUGH THE CASCADE GAPS
THURSDAY AND FRIDAY...
DISCUSSION
WARMER WEATHER, LOWER AFTERNOON RH, AND WESTERLY
WINDS THROUGH THE CASCADE GAPS WILL RETURN WEDNESDAY THROUGH THE
REMAINDER OF THE WEEK. WINDS WILL PEAK THURSDAY AND FRIDAY;
COUPLED WITH LOW RH, SOME LOCATIONS IN THE LOWER COLUMBIA BASIN
AND CASCADE GAPS WILL APPROACH RED FLAG CRITERIA. THURSDAY
ONWARD, A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IS FORECAST
FOR PORTIONS OF THE BLUE MOUNTAINS AND CENTRAL OREGON.
***WINDS ARE 20 FOOT 10 MINUTE AVERAGES***
***CWR-CHANCE OF WETTING RAIN 0.10 OR GREATER***
***VENTILATION INDEX IS DERIVED FROM THE
TRANSPORT WIND MULTIPLIED BY THE MIXING
HEIGHT IN 100'S OF FEET. INDEX CATEGORIES
ARE A GENERALIZED INDICATOR AND USERS ARE
ENCOURAGE TO DEVELOP CRITERIA THAT ARE
SUITABLE AND REPRESENTATIVE OF DISPERSION
CONDITIONS IN THEIR LOCAL AREA OF INTEREST.***
NOTE: MAX TRANSPORT WINDS MAY NOT OCCUR
AT THE SAME TIME AS MAX MIXING HEIGHT.
WAZ695-231130-
EAST WASHINGTON SOUTH CENTRAL CASCADE MOUNTAINS-
134 PM PDT TUE JUL 22 2025
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....50-56.
* MAX HUMIDITY........70-85 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 2 TO 7 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 2 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
* VENTILATION INDEX...POOR TO FAIR (154-338) DECREASING TO POOR
(26-76) AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....77-86...EXCEPT 68-76 RIDGES.
* MIN HUMIDITY........32-47 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING WEST 1 TO 5
MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING WEST 1 TO 6
MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......9500 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (46-96) INCREASING TO FAIR (298-496) IN
THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....51-58.
* MAX HUMIDITY........65-80 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 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.......NEAR SURFACE.
* TRANSPORT WINDS.....WEST AROUND 15 MPH.
* VENTILATION INDEX...POOR TO FAIR (189-391) DECREASING TO POOR
(30-92) AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....75-84...EXCEPT 66-75 RIDGES.
* MIN HUMIDITY........31-46 PERCENT.
* 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.......8500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 15 MPH.
* VENTILATION INDEX...POOR (47-135) INCREASING TO FAIR TO GOOD
(395-669) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
MOSTLY CLEAR. LOWS 48 TO 55. HIGHS 64 TO 78. WEST WINDS
4 TO 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 45 TO 52. HIGHS 63 TO 78. WEST
WINDS 4 TO 10 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 45 TO 52. HIGHS 66 TO 79. WEST WINDS
3 TO 8 MPH.
MONDAY
MOSTLY CLEAR. LOWS 47 TO 54. HIGHS 72 TO 86. WEST WINDS
2 TO 7 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 53 TO 60. HIGHS 75 TO 90. NORTHWEST
WINDS 1 TO 6 MPH.
WAZ690-231130-
KITTITAS VALLEY-
134 PM PDT TUE JUL 22 2025
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....56-62.
* MAX HUMIDITY........61-76 PERCENT.
* HUMIDITY RECOVERY...GOOD...EXCEPT MODERATE RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 2 TO 7 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 2 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
* VENTILATION INDEX...FAIR (256-414) DECREASING TO POOR (37-95)
AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....86-92...EXCEPT 74-87 RIDGES.
* MIN HUMIDITY........24-31 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING SOUTHWEST 2
TO 6 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING SOUTHWEST 2
TO 5 MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......11000 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (55-105) INCREASING TO FAIR TO GOOD
(403-585) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....59-65.
* MAX HUMIDITY........51-66 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 4 TO 9 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 4 TO 9 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH.
* VENTILATION INDEX...FAIR TO GOOD (395-583) DECREASING TO POOR
(45-127) AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY.
* MAX TEMPERATURE.....86-94...EXCEPT 76-89 RIDGES.
* MIN HUMIDITY........22-30 PERCENT.
* 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.......10000 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 15 MPH.
* VENTILATION INDEX...POOR (66-172) INCREASING TO GOOD TO EXCELLENT
(609-907) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
CLEAR. LOWS 56 TO 62. HIGHS 81 TO 90. NORTHWEST WINDS
7 TO 13 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 54 TO 59. HIGHS 80 TO 88. WEST
WINDS 7 TO 13 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 54 TO 59. HIGHS 81 TO 89. WEST WINDS
4 TO 10 MPH.
MONDAY
MOSTLY CLEAR. LOWS 56 TO 61. HIGHS 87 TO 94. NORTHEAST
WINDS 3 TO 8 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 61 TO 67. HIGHS 90 TO 98. NORTH
WINDS 2 TO 7 MPH.
WAZ694-231130-
YAKAMA ALPINE DISTRICT-
134 PM PDT TUE JUL 22 2025
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....51-59.
* MAX HUMIDITY........68-83 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR TO FAIR (116-208) DECREASING TO POOR
(25-46) AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....82-89...EXCEPT 71-83 RIDGES.
* MIN HUMIDITY........28-41 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING SOUTHWEST 2
TO 5 MPH IN THE AFTERNOON.
* 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.......10000 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (32-66) INCREASING TO FAIR (342-476) IN
THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....52-59.
* MAX HUMIDITY........61-76 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 1 TO 6 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 2 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....WEST AROUND 10 MPH.
* VENTILATION INDEX...FAIR (207-331) DECREASING TO POOR (25-67)
AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY.
* MAX TEMPERATURE.....80-89...EXCEPT 70-82 RIDGES.
* MIN HUMIDITY........24-39 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.......9000 FT AGL.
* TRANSPORT WINDS.....WEST 10 TO 15 MPH.
* VENTILATION INDEX...POOR (38-108) INCREASING TO FAIR TO EXCELLENT
(488-708) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
CLEAR. LOWS 49 TO 56. HIGHS 71 TO 85. WEST WINDS 4 TO
9 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 47 TO 54. HIGHS 70 TO 83. WEST
WINDS 4 TO 9 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 46 TO 53. HIGHS 71 TO 84. WEST WINDS
2 TO 7 MPH.
MONDAY
MOSTLY CLEAR. LOWS 49 TO 56. HIGHS 77 TO 90. SOUTHWEST
WINDS 2 TO 7 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 55 TO 61. HIGHS 81 TO 93. WEST
WINDS 1 TO 6 MPH.
ORZ691-WAZ691-231130-
LOWER COLUMBIA BASIN OF OREGON-LOWER COLUMBIA BASIN OF WASHINGTON-
134 PM PDT TUE JUL 22 2025
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....58-63.
* MAX HUMIDITY........61-76 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 2 TO 6 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 2 TO 6 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....WEST AROUND 5 MPH.
* VENTILATION INDEX...POOR TO FAIR (93-323) DECREASING TO POOR
(25-45) AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....89-94...EXCEPT 84-90 RIDGES.
* MIN HUMIDITY........20-26 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING WEST 2 TO 6
MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING SOUTHWEST 2
TO 7 MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......11000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (42-86) INCREASING TO FAIR TO GOOD
(437-567) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....60-66.
* MAX HUMIDITY........52-67 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 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.......NEAR SURFACE.
* TRANSPORT WINDS.....WEST AROUND 10 MPH.
* VENTILATION INDEX...FAIR (205-453) DECREASING TO POOR (28-70)
AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY.
* MAX TEMPERATURE.....88-96.
* MIN HUMIDITY........18-24 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 5 TO 11 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 5 TO 11 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......10000 FT AGL.
* TRANSPORT WINDS.....WEST 10 TO 15 MPH.
* VENTILATION INDEX...POOR (47-165) INCREASING TO EXCELLENT
(710-1020) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
CLEAR. LOWS 57 TO 64. HIGHS 84 TO 92. WEST WINDS 7 TO
13 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 55 TO 61. HIGHS 82 TO 90. WEST
WINDS 7 TO 13 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 55 TO 62. HIGHS 84 TO 91. WEST WINDS
5 TO 11 MPH.
MONDAY
MOSTLY CLEAR. LOWS 57 TO 62. HIGHS 89 TO 95. WEST WINDS
2 TO 7 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 61 TO 67. HIGHS 92 TO 100.
NORTHWEST WINDS 2 TO 7 MPH.
ORZ692-WAZ692-231130-
NORTHERN BLUE MOUNTAINS OF OREGON-BLUE MOUNTAINS OF WASHINGTON-
134 PM PDT TUE JUL 22 2025
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....50-59.
* MAX HUMIDITY........62-77 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH SHIFTING TO THE
SOUTHEAST AFTER MIDNIGHT.
* VENTILATION INDEX...POOR (72-158) DECREASING TO POOR (25-39)
AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....79-89...EXCEPT 72-78 RIDGES.
* MIN HUMIDITY........25-33 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......10000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (38-82) INCREASING TO FAIR TO GOOD
(379-519) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....54-63.
* MAX HUMIDITY........50-65 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....WEST AROUND 5 MPH.
* VENTILATION INDEX...POOR TO FAIR (128-200) DECREASING TO POOR
(25-49) AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY.
* MAX TEMPERATURE.....82-92...EXCEPT 74-81 RIDGES.
* MIN HUMIDITY........21-28 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.......10000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH INCREASING TO WEST
AROUND 20 MPH IN THE AFTERNOON.
* VENTILATION INDEX...POOR (41-131) INCREASING TO EXCELLENT
(811-999) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
CLEAR. LOWS 52 TO 61. HIGHS 75 TO 87. SOUTHWEST WINDS
4 TO 9 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 51 TO 59. HIGHS 74 TO 85. WEST
WINDS 3 TO 8 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 52 TO 60. HIGHS 75 TO 85. WEST
WINDS 2 TO 7 MPH.
MONDAY
MOSTLY CLEAR. LOWS 53 TO 61. HIGHS 80 TO 91. NORTH
WINDS 1 TO 5 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 58 TO 65. HIGHS 83 TO 94. NORTH
WINDS 1 TO 5 MPH.
ORZ693-WAZ693-231130-
CANYON GRASSLANDS OF WALLOWA COUNTY-
SOUTHEAST WASHINGTON GRANDE RONDE VALLEY-
134 PM PDT TUE JUL 22 2025
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....47-57.
* MAX HUMIDITY........69-84 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTH AROUND 5 MPH SHIFTING TO THE SOUTHEAST
AFTER MIDNIGHT.
* VENTILATION INDEX...POOR (96-156) DECREASING TO POOR (25-38)
AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....79-87...EXCEPT 72-80 RIDGES.
* MIN HUMIDITY........21-28 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......11500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH.
* VENTILATION INDEX...POOR (29-63) INCREASING TO FAIR TO GOOD
(415-525) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....51-62.
* MAX HUMIDITY........52-67 PERCENT...EXCEPT 47-55 PERCENT RIDGES.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....WEST AROUND 5 MPH.
* VENTILATION INDEX...POOR (126-188) DECREASING TO POOR (25-50)
AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....83-92...EXCEPT 77-85 RIDGES.
* MIN HUMIDITY........18-25 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING WEST 2 TO 5
MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 1 TO 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......12500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH INCREASING TO WEST
AROUND 15 MPH IN THE AFTERNOON.
* VENTILATION INDEX...POOR (25-77) INCREASING TO EXCELLENT
(894-1050) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
MOSTLY CLEAR. LOWS 51 TO 61. HIGHS 80 TO 90. WEST WINDS
2 TO 7 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 50 TO 60. HIGHS 79 TO 89. WEST
WINDS 2 TO 7 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 51 TO 60. HIGHS 79 TO 89. WEST
WINDS 1 TO 6 MPH.
MONDAY
MOSTLY CLEAR. LOWS 52 TO 61. HIGHS 84 TO 93. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 56 TO 65. HIGHS 88 TO 97. NORTHEAST
WINDS 1 TO 5 MPH.
ORZ701-231130-
EASTERN COLUMBIA RIVER GORGE OF OREGON-
134 PM PDT TUE JUL 22 2025
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....56-61.
* MAX HUMIDITY........65-80 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 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.......NEAR SURFACE.
* TRANSPORT WINDS.....WEST AROUND 10 MPH.
* VENTILATION INDEX...FAIR (252-374) DECREASING TO POOR (30-80)
AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........SUNNY.
* MAX TEMPERATURE.....87-92.
* MIN HUMIDITY........27-33 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WINDS NORTH 2 TO 7 MPH IN THE AFTERNOON.
UPSLOPE LESS THAN 5 MPH. IN THE EASTERN COLUMBIA RIVER GORGE,
WINDS WEST 2 TO 7 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING NORTH 1 TO 6
MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......9500 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (44-100) INCREASING TO FAIR (378-484) IN
THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....57-62.
* MAX HUMIDITY........61-76 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 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.......NEAR SURFACE.
* TRANSPORT WINDS.....WEST 10 TO 15 MPH.
* VENTILATION INDEX...FAIR (300-446) DECREASING TO POOR (41-111)
AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY.
* MAX TEMPERATURE.....86-91...EXCEPT 81-88 RIDGES.
* MIN HUMIDITY........25-35 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 4 TO 10 MPH. IN THE EASTERN
COLUMBIA RIVER GORGE, WEST WINDS 3 TO 8 MPH INCREASING TO 9
TO 15 MPH IN THE AFTERNOON, GUSTS TO 30 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....WEST WINDS 4 TO 9 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 10 MPH INCREASING TO AROUND 20
MPH IN THE AFTERNOON.
* VENTILATION INDEX...POOR (50-152) INCREASING TO GOOD TO EXCELLENT
(604-820) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
MOSTLY CLEAR. LOWS 54 TO 60. HIGHS 80 TO 86. WEST WINDS
7 TO 13 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 52 TO 57. HIGHS 79 TO 84. WEST
WINDS 6 TO 12 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 50 TO 56. HIGHS 81 TO 86. WEST WINDS
4 TO 9 MPH.
MONDAY
MOSTLY CLEAR. LOWS 53 TO 58. HIGHS 88 TO 93. NORTHWEST
WINDS 2 TO 7 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 58 TO 63. HIGHS 89 TO 94. NORTHWEST
WINDS 1 TO 6 MPH.
ORZ702-231130-
EAST SLOPES OF THE MT. HOOD NATIONAL FOREST-
134 PM PDT TUE JUL 22 2025
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....51-59.
* MAX HUMIDITY........63-78 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR TO FAIR (111-239) DECREASING TO POOR
(25-48) AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....85-90...EXCEPT 77-85 RIDGES.
* MIN HUMIDITY........28-38 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.......9000 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 5 MPH.
* VENTILATION INDEX...POOR (34-72) INCREASING TO FAIR (254-388) IN
THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....52-61.
* MAX HUMIDITY........60-75 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 1 TO 5 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 1 TO 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....WEST AROUND 15 MPH.
* VENTILATION INDEX...POOR TO FAIR (150-312) DECREASING TO POOR
(25-73) AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY.
* MAX TEMPERATURE.....82-90...EXCEPT 75-84 RIDGES.
* MIN HUMIDITY........26-40 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING WEST 1 TO 5
MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING WEST 1 TO 5
MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....WEST 10 TO 15 MPH.
* VENTILATION INDEX...POOR (26-92) INCREASING TO FAIR TO GOOD
(399-695) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
MOSTLY CLEAR. LOWS 49 TO 56. HIGHS 70 TO 84. WEST WINDS
2 TO 7 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 47 TO 55. HIGHS 69 TO 83. WEST
WINDS 2 TO 7 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 45 TO 53. HIGHS 71 TO 84. WEST WINDS
1 TO 6 MPH.
MONDAY
MOSTLY CLEAR. LOWS 48 TO 56. HIGHS 77 TO 90. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 53 TO 61. HIGHS 78 TO 92. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
ORZ695-231130-
EAGLE CAP WILDERNESS-
134 PM PDT TUE JUL 22 2025
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....49-56...EXCEPT 42-50 RIDGES.
* MAX HUMIDITY........67-82 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTH AROUND 5 MPH.
* VENTILATION INDEX...POOR (94-178) DECREASING TO POOR (25-51)
AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....74-84...EXCEPT 63-74 RIDGES.
* MIN HUMIDITY........25-37 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.......11000 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (27-57) INCREASING TO FAIR TO GOOD
(364-520) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....54-60...EXCEPT 47-55 RIDGES.
* MAX HUMIDITY........50-62 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH.
* VENTILATION INDEX...POOR (111-181) DECREASING TO POOR (25-53)
AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....79-89...EXCEPT 67-79 RIDGES.
* MIN HUMIDITY........23-35 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...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.......11500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 5 MPH INCREASING TO AROUND 15 MPH
IN THE AFTERNOON.
* VENTILATION INDEX...POOR (25-51) INCREASING TO GOOD TO EXCELLENT
(659-867) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
MOSTLY CLEAR. LOWS 49 TO 58. HIGHS 70 TO 85. WEST WINDS
2 TO 7 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 47 TO 56. HIGHS 69 TO 84.
NORTHWEST WINDS 2 TO 7 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 48 TO 57. HIGHS 69 TO 84. NORTHWEST
WINDS 2 TO 7 MPH.
MONDAY
MOSTLY CLEAR. LOWS 49 TO 58. HIGHS 74 TO 89. NORTHWEST
WINDS 1 TO 6 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 53 TO 62. HIGHS 77 TO 92. NORTH
WINDS 2 TO 7 MPH.
ORZ694-231130-
GRANDE RONDE VALLEY OF OREGON-
134 PM PDT TUE JUL 22 2025
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....49-54.
* MAX HUMIDITY........75-90 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTH WINDS 2 TO 5 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....NORTH WINDS 2 TO 5 MPH IN THE EVENING
BECOMING LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTH AROUND 5 MPH.
* VENTILATION INDEX...POOR TO FAIR (185-225) DECREASING TO POOR
(30-46) AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....84-89.
* MIN HUMIDITY........23-28 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......10000 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (26-50) INCREASING TO FAIR TO GOOD
(442-502) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....54-59.
* MAX HUMIDITY........62-75 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH.
* VENTILATION INDEX...POOR TO FAIR (181-217) DECREASING TO POOR
(34-52) AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....88-93.
* MIN HUMIDITY........21-26 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING NORTHWEST 2
TO 5 MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......10000 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (45-69) INCREASING TO GOOD TO EXCELLENT
(600-868) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
CLEAR. LOWS 53 TO 58. HIGHS 85 TO 90. NORTHWEST WINDS
2 TO 7 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 52 TO 57. HIGHS 84 TO 89.
NORTHWEST WINDS 2 TO 7 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 53 TO 58. HIGHS 84 TO 89. NORTHWEST
WINDS 2 TO 7 MPH.
MONDAY
MOSTLY CLEAR. LOWS 54 TO 59. HIGHS 89 TO 94. NORTH
WINDS 1 TO 6 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 58 TO 63. HIGHS 93 TO 98. NORTHWEST
WINDS 2 TO 7 MPH.
ORZ699-231130-
WESTERN FORESTED BLUE MOUNTAINS-
134 PM PDT TUE JUL 22 2025
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....48-55.
* MAX HUMIDITY........64-79 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
* VENTILATION INDEX...POOR TO FAIR (140-252) DECREASING TO POOR
(25-42) AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....79-85...EXCEPT 72-80 RIDGES.
* MIN HUMIDITY........23-32 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......10500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (31-67) INCREASING TO FAIR TO GOOD
(492-650) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....52-58.
* MAX HUMIDITY........54-68 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR TO FAIR (149-271) DECREASING TO POOR
(25-43) AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....82-88...EXCEPT 75-83 RIDGES.
* MIN HUMIDITY........20-27 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING WEST 1 TO 5
MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......10500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 5 MPH INCREASING TO AROUND 15 MPH
IN THE AFTERNOON.
* VENTILATION INDEX...POOR (25-56) INCREASING TO EXCELLENT
(774-996) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
CLEAR. LOWS 50 TO 56. HIGHS 76 TO 85. WEST WINDS 1 TO
6 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 48 TO 54. HIGHS 74 TO 83.
NORTHWEST WINDS 1 TO 6 MPH.
SUNDAY
A SLIGHT CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 49 TO
55. HIGHS 74 TO 84. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
MOSTLY CLEAR. LOWS 51 TO 56. HIGHS 79 TO 88. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 54 TO 59. HIGHS 82 TO 91. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
ORZ696-231130-
JOHN DAY VALLEY-
134 PM PDT TUE JUL 22 2025
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....51-57.
* MAX HUMIDITY........60-73 PERCENT.
* HUMIDITY RECOVERY...GOOD...EXCEPT MODERATE RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
* VENTILATION INDEX...FAIR (251-359) DECREASING TO POOR (25-47)
AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....82-90...EXCEPT 77-82 RIDGES.
* MIN HUMIDITY........19-25 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......11500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (29-49) INCREASING TO GOOD (530-664) IN
THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....54-60.
* MAX HUMIDITY........51-63 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...FAIR (240-360) DECREASING TO POOR (26-60)
AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY.
* MAX TEMPERATURE.....84-92...EXCEPT 79-84 RIDGES.
* MIN HUMIDITY........17-22 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING WEST 1 TO 6
MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING WEST 2 TO 7
MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......12000 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 5 MPH INCREASING TO AROUND 15 MPH
IN THE AFTERNOON.
* VENTILATION INDEX...POOR (29-53) INCREASING TO EXCELLENT
(718-890) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
MOSTLY CLEAR. LOWS 52 TO 59. HIGHS 81 TO 89. WEST WINDS
2 TO 7 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 51 TO 57. HIGHS 79 TO 88.
NORTHWEST WINDS 2 TO 7 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 52 TO 58. HIGHS 80 TO 89. NORTHWEST
WINDS 2 TO 7 MPH.
MONDAY
MOSTLY CLEAR. LOWS 52 TO 58. HIGHS 85 TO 93. NORTH
WINDS 1 TO 5 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 56 TO 61. HIGHS 86 TO 95. NORTHWEST
WINDS 1 TO 6 MPH.
ORZ700-231130-
CENTRAL MOUNTAINS OF OREGON-
134 PM PDT TUE JUL 22 2025
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....46-55.
* MAX HUMIDITY........62-77 PERCENT.
* HUMIDITY RECOVERY...GOOD...EXCEPT MODERATE RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTH WINDS 1 TO 6 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
* VENTILATION INDEX...FAIR (342-482) DECREASING TO POOR (25-42)
AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....84-90...EXCEPT 76-82 RIDGES.
* MIN HUMIDITY........17-24 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING NORTHWEST 1
TO 5 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......11500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (28-50) INCREASING TO FAIR TO GOOD
(452-596) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....49-57.
* MAX HUMIDITY........56-71 PERCENT...EXCEPT 50-60 PERCENT RIDGES.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 2 TO 7 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 1 TO 5 MPH IN THE EVENING
BECOMING LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
* VENTILATION INDEX...FAIR TO GOOD (351-597) DECREASING TO POOR
(25-57) AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY.
* MAX TEMPERATURE.....86-91...EXCEPT 79-84 RIDGES.
* MIN HUMIDITY........16-22 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING NORTHWEST 2
TO 7 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING WEST 2 TO 6
MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......12000 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 5 MPH INCREASING TO AROUND 15 MPH
IN THE AFTERNOON.
* VENTILATION INDEX...POOR (25-43) INCREASING TO EXCELLENT
(707-887) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
MOSTLY CLEAR. LOWS 47 TO 55. HIGHS 81 TO 87. WEST WINDS
4 TO 9 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 47 TO 53. HIGHS 80 TO 87.
NORTHWEST WINDS 3 TO 8 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 47 TO 53. HIGHS 80 TO 86. WEST
WINDS 2 TO 7 MPH.
MONDAY
MOSTLY CLEAR. LOWS 48 TO 55. HIGHS 85 TO 91. NORTH
WINDS 2 TO 7 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 50 TO 58. HIGHS 87 TO 93. NORTHWEST
WINDS 2 TO 7 MPH.
ORZ703-231130-
WARM SPRINGS RESERVATION-
134 PM PDT TUE JUL 22 2025
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....53-58.
* MAX HUMIDITY........62-75 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 2 TO 6 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 2 TO 6 MPH IN THE EVENING
BECOMING LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR TO FAIR (190-370) DECREASING TO POOR
(25-45) AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....86-94...EXCEPT 74-84 RIDGES.
* MIN HUMIDITY........21-28 PERCENT...EXCEPT 28-42 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING NORTH 1 TO
5 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING WEST 1 TO 5
MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......10000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH.
* VENTILATION INDEX...POOR (38-64) INCREASING TO FAIR (336-402) IN
THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....55-60.
* MAX HUMIDITY........59-70 PERCENT.
* HUMIDITY RECOVERY...MODERATE...EXCEPT GOOD RIDGES.
* 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.......NEAR SURFACE.
* TRANSPORT WINDS.....WEST AROUND 10 MPH.
* VENTILATION INDEX...FAIR (270-438) DECREASING TO POOR (29-65)
AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY.
* MAX TEMPERATURE.....84-94...EXCEPT 72-82 RIDGES.
* MIN HUMIDITY........21-28 PERCENT...EXCEPT 29-44 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING WEST 4 TO 9
MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....WEST WINDS 3 TO 8 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......10000 FT AGL.
* TRANSPORT WINDS.....WEST 10 TO 15 MPH.
* VENTILATION INDEX...POOR (31-75) INCREASING TO GOOD TO EXCELLENT
(637-839) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
MOSTLY CLEAR. LOWS 51 TO 56. HIGHS 77 TO 90. WEST WINDS
5 TO 11 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 49 TO 55. HIGHS 76 TO 89. WEST
WINDS 4 TO 10 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 48 TO 55. HIGHS 77 TO 89. WEST WINDS
3 TO 8 MPH.
MONDAY
MOSTLY CLEAR. LOWS 51 TO 56. HIGHS 83 TO 94. NORTH
WINDS 2 TO 7 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 54 TO 60. HIGHS 83 TO 95. NORTHWEST
WINDS 2 TO 7 MPH.
ORZ704-231130-
NORTHERN DESCHUTES NATIONAL FOREST-
134 PM PDT TUE JUL 22 2025
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....48-54.
* MAX HUMIDITY........65-80 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 1 TO 6 MPH IN THE EVENING
BECOMING LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR TO FAIR (167-293) DECREASING TO POOR
(25-37) AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....84-91...EXCEPT 71-81 RIDGES.
* MIN HUMIDITY........23-30 PERCENT...EXCEPT 30-45 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING WEST 1 TO 6
MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......10000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (39-73) INCREASING TO FAIR (377-485) IN
THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....49-55.
* MAX HUMIDITY........62-77 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 2 TO 5 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.......NEAR SURFACE.
* TRANSPORT WINDS.....WEST 10 TO 15 MPH.
* VENTILATION INDEX...FAIR (264-454) DECREASING TO POOR (25-66)
AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY.
* MAX TEMPERATURE.....84-90...EXCEPT 71-81 RIDGES.
* MIN HUMIDITY........23-28 PERCENT...EXCEPT 28-41 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING WEST 2 TO 7
MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING WEST 3 TO 8
MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......10000 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 5 MPH INCREASING TO AROUND 15 MPH
IN THE AFTERNOON.
* VENTILATION INDEX...POOR (26-66) INCREASING TO GOOD TO EXCELLENT
(665-911) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
MOSTLY CLEAR. LOWS 46 TO 53. HIGHS 73 TO 87. WEST WINDS
4 TO 9 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 45 TO 50. HIGHS 71 TO 85. WEST
WINDS 3 TO 8 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 45 TO 50. HIGHS 72 TO 85. WEST WINDS
3 TO 8 MPH.
MONDAY
MOSTLY CLEAR. LOWS 47 TO 53. HIGHS 77 TO 91. NORTHEAST
WINDS 1 TO 6 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 50 TO 56. HIGHS 78 TO 92. NORTHWEST
WINDS 1 TO 6 MPH.
ORZ705-231130-
SOUTHERN DESCHUTES NATIONAL FOREST-
134 PM PDT TUE JUL 22 2025
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....44-50.
* MAX HUMIDITY........74-88 PERCENT...EXCEPT 63-78 PERCENT RIDGES.
* HUMIDITY RECOVERY...EXCELLENT...EXCEPT GOOD RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....NORTH WINDS UP TO 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
* VENTILATION INDEX...FAIR (225-429) DECREASING TO POOR (25-40)
AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY. HAZY IN THE AFTERNOON.
* MAX TEMPERATURE.....81-86...EXCEPT 71-79 RIDGES.
* MIN HUMIDITY........22-29 PERCENT...EXCEPT 25-40 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING WEST 1 TO 5
MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......10500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (30-62) INCREASING TO FAIR TO GOOD
(427-559) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....46-52.
* MAX HUMIDITY........68-83 PERCENT...EXCEPT 57-72 PERCENT RIDGES.
* HUMIDITY RECOVERY...GOOD...EXCEPT MODERATE RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 2 TO 5 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 2 TO 6 MPH IN THE EVENING
BECOMING LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...FAIR TO GOOD (262-512) DECREASING TO POOR
(25-46) AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER.........SUNNY.
* MAX TEMPERATURE.....82-87...EXCEPT 72-81 RIDGES.
* MIN HUMIDITY........20-30 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING WEST 1 TO 5
MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING WEST 1 TO 6
MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......11500 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (25-38) INCREASING TO GOOD TO EXCELLENT
(625-865) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
MOSTLY CLEAR. LOWS 44 TO 49. HIGHS 74 TO 85. WEST WINDS
2 TO 7 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 43 TO 48. HIGHS 73 TO 83. WEST
WINDS 2 TO 7 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 43 TO 48. HIGHS 73 TO 82. WEST
WINDS 1 TO 6 MPH.
MONDAY
MOSTLY CLEAR. LOWS 44 TO 50. HIGHS 79 TO 88. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 46 TO 52. HIGHS 80 TO 89. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
ORZ697-231130-
CENTRAL BLUE MOUNTAINS-
134 PM PDT TUE JUL 22 2025
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....45-51.
* MAX HUMIDITY........66-81 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
* VENTILATION INDEX...POOR TO FAIR (155-293) DECREASING TO POOR
(25-46) AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....78-83...EXCEPT 72-79 RIDGES.
* MIN HUMIDITY........21-29 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......10500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (26-62) INCREASING TO GOOD TO EXCELLENT
(578-704) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....49-56.
* MAX HUMIDITY........54-69 PERCENT.
* HUMIDITY RECOVERY...GOOD...EXCEPT MODERATE RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
* VENTILATION INDEX...POOR TO FAIR (146-268) DECREASING TO POOR
(25-46) AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....82-87...EXCEPT 76-82 RIDGES.
* MIN HUMIDITY........19-25 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING WEST 2 TO 5
MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING WEST 2 TO 5
MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......11500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH INCREASING TO WEST
AROUND 15 MPH IN THE AFTERNOON.
* VENTILATION INDEX...POOR (25-41) INCREASING TO EXCELLENT
(822-952) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
MOSTLY CLEAR. LOWS 48 TO 54. HIGHS 76 TO 83. NORTHWEST
WINDS 1 TO 6 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 47 TO 53. HIGHS 76 TO 82.
NORTHWEST WINDS 1 TO 6 MPH.
SUNDAY
A SLIGHT CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 47 TO
53. HIGHS 75 TO 81. NORTHWEST WINDS 1 TO 5 MPH.
MONDAY
MOSTLY CLEAR. LOWS 48 TO 54. HIGHS 80 TO 87. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 51 TO 56. HIGHS 82 TO 89. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
ORZ698-231130-
SOUTHERN BLUE MOUNTAINS-
134 PM PDT TUE JUL 22 2025
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....47-53.
* MAX HUMIDITY........61-72 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTH AROUND 10 MPH.
* VENTILATION INDEX...FAIR (232-330) DECREASING TO POOR (25-56)
AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....79-85.
* MIN HUMIDITY........19-24 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......10500 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
* VENTILATION INDEX...POOR (26-56) INCREASING TO GOOD (596-692) IN
THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....51-57.
* MAX HUMIDITY........57-72 PERCENT...EXCEPT 54-61 PERCENT RIDGES.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTH AROUND 10 MPH.
* VENTILATION INDEX...POOR TO FAIR (189-299) DECREASING TO POOR
(25-63) AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....82-87...EXCEPT 77-82 RIDGES.
* MIN HUMIDITY........16-21 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING WEST 2 TO 5
MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......12000 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 5 MPH SHIFTING TO THE WEST IN
THE AFTERNOON.
* VENTILATION INDEX...POOR (25-47) INCREASING TO GOOD TO EXCELLENT
(659-849) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
MOSTLY CLEAR. LOWS 49 TO 56. HIGHS 80 TO 87. NORTHWEST
WINDS 2 TO 7 MPH.
SATURDAY
A SLIGHT CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 49 TO
55. HIGHS 79 TO 86. NORTHWEST WINDS 2 TO 7 MPH.
SUNDAY
A SLIGHT CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 48 TO
53. HIGHS 79 TO 85. WEST WINDS 2 TO 7 MPH.
MONDAY
MOSTLY CLEAR. LOWS 49 TO 56. HIGHS 84 TO 90. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 51 TO 57. HIGHS 86 TO 92. NORTHEAST
WINDS 1 TO 5 MPH.
8-14 DAY OUTLOOK FOR WEDNESDAY JULY 30 THROUGH TUESDAY AUGUST 5
A GREATER CHANCE OF NEAR- TO ABOVE-NORMAL TEMPERATURES AND ABOVE-
NORMAL PRECIPITATION.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page