373
FNUS56 KPDT 051035
FWFPDT
FIRE WEATHER PLANNING FORECAST FOR NE OREGON AND SE WASHINGTON
NATIONAL WEATHER SERVICE PENDLETON OR
335 AM PDT TUE MAY 5 2026
DISCUSSION
VERY LOW (5-15 PERCENT) CHANCE OF SHOWERS THIS
AFTERNOON FOR THE BLUE AND CASCADE MOUNTAINS. WINDS WILL BECOME
GENERALLY NORTHERLY TO NORTHEASTERLY BY THIS AFTERNOON, AND
LOCALLY BREEZY. A REVERSAL TO BREEZY TO WINDY WESTERLY WINDS IS
FORECAST WEDNESDAY, AND LOCALLY LOW (10-15 PERCENT) RELATIVE
HUMIDITY IS FORECAST TO ACCOMPANY BREEZY (THURSDAY) TO WINDY
(FRIDAY) WESTERLY WINDS ACROSS THE COLUMBIA BASIN AND SURROUNDING
LOWLANDS. ABOVE-NORMAL TEMPERATURES ARE FORECAST THIS WEEK.
***WINDS ARE 20 FOOT 10 MINUTE AVERAGES ***
***CWR: CHANCE OF WETTING RAIN 0.10 OR GREATER ***
***VENTILATION INDEX IS DERIVED FROM TRANSPORT WIND
MULTIPLIED BY THE MIXING HEIGHT IN 100'S OF FT.
CATEGORIES ARE A GENERALIZED INDICATOR AND USERS
ARE ENCOURAGE TO DEVELOP CRITERIA THAT ARE
SUITABLE AND REPRESENTATIVE OF DISPERSION
CONDITIONS IN THEIR LOCAL AREA OF INTEREST.
CATEGORIES: LOW (< 200), MODERATE (200-500),
HIGH (500-700), AND VERY HIGH (> 700).
-NOTE: MAX TRANSPORT WINDS MAY NOT OCCUR
AT THE SAME TIME AS MAX MIXING HEIGHT. ***
WAZ695-052330-
EAST WASHINGTON SOUTH CENTRAL CASCADE MOUNTAINS-
335 AM PDT TUE MAY 5 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
* MAX TEMPERATURE.....69-76...EXCEPT 61-68 RIDGES.
* MIN HUMIDITY........33-47 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING EAST 1 TO 6
MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTH WINDS 2 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
* VENTILATION INDEX...LOW (28-102) INCREASING TO MODERATE (243-383)
IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....44-51.
* MAX HUMIDITY........65-80 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH BECOMING
NORTHWEST 1 TO 5 MPH AFTER MIDNIGHT.
* RIDGES/UPR SLOPES....WEST WINDS 2 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (79-177) DECREASING TO LOW (25-65) AFTER
MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....68-76...EXCEPT 60-68 RIDGES.
* MIN HUMIDITY........32-47 PERCENT.
* 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 4 TO 9 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....WEST 10 TO 15 MPH.
* VENTILATION INDEX...LOW (25-99) INCREASING TO MODERATE TO HIGH
(412-660) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
PARTLY CLOUDY. LOWS 39 TO 47. HIGHS 58 TO 70. WEST
WINDS 7 TO 13 MPH.
FRIDAY
MOSTLY CLOUDY. LOWS 39 TO 46. HIGHS 51 TO 63. WEST
WINDS 6 TO 12 MPH.
SATURDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
36 TO 42. HIGHS 56 TO 68. WEST WINDS 8 TO 14 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 38 TO 45. HIGHS 62 TO 73. SOUTHWEST
WINDS 2 TO 7 MPH.
MONDAY
PARTLY CLOUDY. LOWS 41 TO 48. HIGHS 62 TO 74. WEST
WINDS 4 TO 9 MPH.
WAZ690-052330-
KITTITAS VALLEY-
335 AM PDT TUE MAY 5 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....74-81...EXCEPT 65-74 RIDGES.
* MIN HUMIDITY........24-32 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...EAST WINDS 4 TO 9 MPH.
* RIDGES/UPR SLOPES....EAST WINDS 4 TO 9 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH.
* VENTILATION INDEX...LOW (86-168) INCREASING TO MODERATE TO HIGH
(400-572) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....51-56.
* MAX HUMIDITY........55-70 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 2 TO 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.....NORTHWEST AROUND 5 MPH.
* VENTILATION INDEX...LOW (86-174) DECREASING TO LOW (25-58) AFTER
MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....77-85...EXCEPT 69-78 RIDGES.
* MIN HUMIDITY........24-32 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 1 TO 5 MPH SHIFTING TO THE
WEST 5 TO 11 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 3 TO 6 MPH SHIFTING TO THE
WEST 6 TO 12 MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....WEST 10 TO 15 MPH.
* VENTILATION INDEX...LOW (25-84) INCREASING TO MODERATE TO VERY
HIGH (451-705) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
PARTLY CLOUDY. LOWS 49 TO 54. HIGHS 72 TO 81.
NORTHWEST WINDS 9 TO 15 MPH.
FRIDAY
MOSTLY CLOUDY. LOWS 48 TO 53. HIGHS 65 TO 74. WEST
WINDS 9 TO 15 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 44 TO 49. HIGHS 68 TO 76.
NORTHWEST WINDS 13 TO 19 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 46 TO 51. HIGHS 73 TO 81. SOUTHWEST
WINDS 3 TO 8 MPH.
MONDAY
PARTLY CLOUDY. LOWS 50 TO 55. HIGHS 74 TO 82. NORTHWEST
WINDS 6 TO 12 MPH.
WAZ694-052330-
YAKAMA ALPINE DISTRICT-
335 AM PDT TUE MAY 5 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
* MAX TEMPERATURE.....73-79...EXCEPT 62-73 RIDGES.
* MIN HUMIDITY........29-43 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING SOUTHEAST 2
TO 6 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTHEAST WINDS 2 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 10 MPH.
* VENTILATION INDEX...LOW (44-126) INCREASING TO MODERATE (241-425)
IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....46-53.
* MAX HUMIDITY........63-78 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 1 TO 5 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 1 TO 6 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH.
* VENTILATION INDEX...LOW (51-125) DECREASING TO LOW (25-50) AFTER
MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....73-80...EXCEPT 63-75 RIDGES.
* MIN HUMIDITY........27-42 PERCENT.
* 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 4 TO 9 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....WEST 10 TO 15 MPH.
* VENTILATION INDEX...LOW (25-73) INCREASING TO MODERATE TO HIGH
(404-592) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
PARTLY CLOUDY. LOWS 43 TO 50. HIGHS 63 TO 75. WEST
WINDS 5 TO 11 MPH.
FRIDAY
MOSTLY CLOUDY. LOWS 42 TO 49. HIGHS 56 TO 68. WEST
WINDS 6 TO 12 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 37 TO 44. HIGHS 61 TO 73. WEST
WINDS 7 TO 13 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 41 TO 47. HIGHS 67 TO 78. SOUTHWEST
WINDS 1 TO 6 MPH.
MONDAY
PARTLY CLOUDY. LOWS 43 TO 50. HIGHS 67 TO 79. WEST
WINDS 3 TO 8 MPH.
ORZ691-WAZ691-052330-
LOWER COLUMBIA BASIN OF OREGON-LOWER COLUMBIA BASIN OF WASHINGTON-
335 AM PDT TUE MAY 5 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....75-83...EXCEPT 71-78 RIDGES.
* MIN HUMIDITY........24-33 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTH WINDS 4 TO 9 MPH.
* RIDGES/UPR SLOPES....NORTH WINDS 5 TO 11 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 10 MPH.
* VENTILATION INDEX...LOW (61-135) INCREASING TO HIGH TO VERY HIGH
(536-806) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....50-55.
* MAX HUMIDITY........54-69 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHEAST WINDS 3 TO 8 MPH.
* RIDGES/UPR SLOPES....EAST WINDS 4 TO 10 MPH SHIFTING TO THE
SOUTHWEST 2 TO 6 MPH AFTER MIDNIGHT.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH SHIFTING TO THE
SOUTHEAST AFTER MIDNIGHT.
* VENTILATION INDEX...LOW TO MODERATE (157-277) DECREASING TO LOW
(25-45) AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....78-87...EXCEPT 75-82 RIDGES.
* MIN HUMIDITY........23-32 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 4 TO 9 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 4 TO 9 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......9500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
* VENTILATION INDEX...LOW (25-74) INCREASING TO MODERATE TO HIGH
(437-669) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
PARTLY CLOUDY. LOWS 50 TO 56. HIGHS 73 TO 83. WEST
WINDS 7 TO 13 MPH.
FRIDAY
MOSTLY CLOUDY. LOWS 49 TO 54. HIGHS 69 TO 77. SOUTHWEST
WINDS 8 TO 14 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 44 TO 49. HIGHS 71 TO 78. WEST
WINDS 10 TO 16 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 46 TO 51. HIGHS 77 TO 83. SOUTHWEST
WINDS 1 TO 6 MPH.
MONDAY
PARTLY CLOUDY. LOWS 50 TO 55. HIGHS 78 TO 85. WEST
WINDS 3 TO 8 MPH.
ORZ692-WAZ692-052330-
NORTHERN BLUE MOUNTAINS OF OREGON-BLUE MOUNTAINS OF WASHINGTON-
335 AM PDT TUE MAY 5 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....65-74...EXCEPT 58-64 RIDGES.
* MIN HUMIDITY........33-43 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING NORTH 4 TO
10 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTH WINDS 3 TO 8 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....NORTH 10 TO 15 MPH.
* VENTILATION INDEX...LOW (44-148) INCREASING TO HIGH TO VERY HIGH
(615-903) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....43-51.
* MAX HUMIDITY........50-65 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...EAST WINDS 2 TO 7 MPH.
* RIDGES/UPR SLOPES....EAST WINDS 2 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....EAST AROUND 10 MPH.
* VENTILATION INDEX...LOW TO MODERATE (128-266) DECREASING TO LOW
(25-68) AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....70-78...EXCEPT 63-70 RIDGES.
* MIN HUMIDITY........32-41 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 2 TO 7 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 2 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
* VENTILATION INDEX...LOW (25-81) INCREASING TO MODERATE TO HIGH
(454-624) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
PARTLY CLOUDY. LOWS 46 TO 53. HIGHS 63 TO 73.
SOUTHWEST WINDS 4 TO 9 MPH.
FRIDAY
MOSTLY CLOUDY. LOWS 44 TO 51. HIGHS 59 TO 70. SOUTHWEST
WINDS 6 TO 12 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 39 TO 45. HIGHS 58 TO 69. WEST
WINDS 7 TO 13 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 41 TO 47. HIGHS 67 TO 77. SOUTHWEST
WINDS 1 TO 6 MPH.
MONDAY
PARTLY CLOUDY. LOWS 46 TO 52. HIGHS 69 TO 79. SOUTHWEST
WINDS 2 TO 7 MPH.
ORZ693-WAZ693-052330-
CANYON GRASSLANDS OF WALLOWA COUNTY-
SOUTHEAST WASHINGTON GRANDE RONDE VALLEY-
335 AM PDT TUE MAY 5 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....63-72...EXCEPT 57-65 RIDGES.
* MIN HUMIDITY........28-35 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTH WINDS 1 TO 5 MPH INCREASING TO 7 TO 13
MPH WITH GUSTS UP TO 25 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTH WINDS 4 TO 9 MPH INCREASING TO 10 TO
16 MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......10000 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 10 MPH INCREASING TO AROUND 20
MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW (79-197) INCREASING TO VERY HIGH
(901-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....40-47.
* MAX HUMIDITY........50-64 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTH WINDS 5 TO 11 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....NORTH WINDS 9 TO 15 MPH DECREASING TO 2 TO 5
MPH AFTER MIDNIGHT.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTHEAST AROUND 15 MPH BECOMING EAST AROUND
5 MPH AFTER MIDNIGHT.
* VENTILATION INDEX...MODERATE (204-400) DECREASING TO LOW (25-62)
AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....69-78...EXCEPT 63-71 RIDGES.
* MIN HUMIDITY........27-34 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING WEST 1 TO 6
MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 2 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......10500 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 5 MPH SHIFTING TO THE WEST IN
THE AFTERNOON.
* VENTILATION INDEX...LOW (25-68) INCREASING TO MODERATE TO HIGH
(465-651) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
PARTLY CLOUDY. LOWS 44 TO 51. HIGHS 67 TO 76.
SOUTHWEST WINDS 3 TO 8 MPH.
FRIDAY
MOSTLY CLOUDY. LOWS 42 TO 48. HIGHS 64 TO 73. WEST
WINDS 3 TO 8 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 38 TO 45. HIGHS 61 TO 69. WEST
WINDS 6 TO 12 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 39 TO 45. HIGHS 70 TO 79. SOUTH
WINDS 1 TO 6 MPH.
MONDAY
PARTLY CLOUDY. LOWS 44 TO 51. HIGHS 74 TO 82. SOUTHWEST
WINDS 2 TO 7 MPH.
ORZ701-052330-
EASTERN COLUMBIA RIVER GORGE OF OREGON-
335 AM PDT TUE MAY 5 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....77-82...EXCEPT 72-77 RIDGES.
* MIN HUMIDITY........31-39 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTH WINDS 2 TO 6 MPH.
* RIDGES/UPR SLOPES....NORTH WINDS 2 TO 6 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
* VENTILATION INDEX...LOW (55-157) INCREASING TO MODERATE (228-406)
IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....50-55.
* MAX HUMIDITY........72-85 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 5 TO 10 MPH.
* VENTILATION INDEX...LOW (116-194) DECREASING TO LOW (25-69) AFTER
MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....77-82...EXCEPT 72-79 RIDGES.
* MIN HUMIDITY........29-40 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING WEST 5 TO
11 MPH IN THE AFTERNOON. IN THE EASTERN COLUMBIA RIVER GORGE,
WEST WINDS 4 TO 9 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 10 TO 15 MPH.
* VENTILATION INDEX...LOW (26-104) INCREASING TO MODERATE TO HIGH
(402-570) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
PARTLY CLOUDY. LOWS 48 TO 53. HIGHS 70 TO 76. WEST
WINDS 6 TO 12 MPH.
FRIDAY
MOSTLY CLOUDY. LOWS 47 TO 52. HIGHS 65 TO 70. WEST
WINDS 6 TO 12 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 44 TO 49. HIGHS 71 TO 76. WEST
WINDS 8 TO 14 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 45 TO 50. HIGHS 76 TO 81. NORTHEAST
WINDS 1 TO 6 MPH.
MONDAY
PARTLY CLOUDY. LOWS 48 TO 53. HIGHS 76 TO 81. WEST
WINDS 4 TO 9 MPH.
ORZ702-052330-
EAST SLOPES OF THE MT. HOOD NATIONAL FOREST-
335 AM PDT TUE MAY 5 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....72-78...EXCEPT 67-75 RIDGES.
* MIN HUMIDITY........33-44 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTH WINDS 1 TO 5 MPH.
* RIDGES/UPR SLOPES....NORTHEAST WINDS 1 TO 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 10 MPH.
* VENTILATION INDEX...LOW (29-79) INCREASING TO LOW TO MODERATE
(183-371) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....45-52.
* MAX HUMIDITY........70-85 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS UP TO 5 MPH.
* RIDGES/UPR SLOPES....WEST WINDS UP TO 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (76-160) DECREASING TO LOW (25-42) AFTER
MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....73-80...EXCEPT 67-75 RIDGES.
* MIN HUMIDITY........31-42 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.......8000 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 10 MPH.
* VENTILATION INDEX...LOW (25-66) INCREASING TO MODERATE TO HIGH
(318-544) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
PARTLY CLOUDY. LOWS 43 TO 49. HIGHS 62 TO 73. WEST
WINDS 4 TO 9 MPH.
FRIDAY
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
42 TO 48. HIGHS 55 TO 67. WEST WINDS 5 TO 11 MPH.
SATURDAY
A SLIGHT CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 38 TO
44. HIGHS 61 TO 72. WEST WINDS 6 TO 12 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 41 TO 47. HIGHS 68 TO 78. EAST
WINDS UP TO 5 MPH.
MONDAY
PARTLY CLOUDY. LOWS 44 TO 49. HIGHS 67 TO 79. WEST
WINDS 2 TO 7 MPH.
ORZ695-052330-
EAGLE CAP WILDERNESS-
335 AM PDT TUE MAY 5 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....61-71...EXCEPT 50-62 RIDGES.
* MIN HUMIDITY........29-44 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTH WINDS 2 TO 7 MPH INCREASING TO 7 TO 13
MPH WITH GUSTS UP TO 30 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTH WINDS 11 TO 17 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......9500 FT AGL.
* TRANSPORT WINDS.....NORTH 15 TO 20 MPH.
* VENTILATION INDEX...LOW TO MODERATE (114-302) INCREASING TO VERY
HIGH (876-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....41-46...EXCEPT 33-40 RIDGES.
* MAX HUMIDITY........51-59 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTH WINDS 6 TO 12 MPH SHIFTING TO THE
NORTHEAST 1 TO 6 MPH AFTER MIDNIGHT.
* RIDGES/UPR SLOPES....NORTH WINDS 12 TO 18 MPH DECREASING TO 4 TO
9 MPH AFTER MIDNIGHT.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTH AROUND 20 MPH BECOMING NORTHEAST AROUND
10 MPH AFTER MIDNIGHT.
* VENTILATION INDEX...MODERATE (213-467) DECREASING TO LOW (25-84)
AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....65-74...EXCEPT 54-65 RIDGES.
* MIN HUMIDITY........31-42 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING WEST 2 TO 6
MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....WEST WINDS 3 TO 8 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
* VENTILATION INDEX...LOW (25-87) INCREASING TO MODERATE TO HIGH
(315-567) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
PARTLY CLOUDY. LOWS 38 TO 48. HIGHS 58 TO 72. WEST
WINDS 4 TO 9 MPH.
FRIDAY
MOSTLY CLOUDY. LOWS 37 TO 46. HIGHS 55 TO 69. WEST
WINDS 4 TO 9 MPH.
SATURDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
32 TO 42. HIGHS 52 TO 66. NORTHWEST WINDS 6 TO 12 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 35 TO 43. HIGHS 61 TO 74. SOUTHWEST
WINDS 3 TO 8 MPH.
MONDAY
PARTLY CLOUDY. LOWS 41 TO 49. HIGHS 64 TO 78. SOUTHWEST
WINDS 3 TO 8 MPH.
ORZ694-052330-
GRANDE RONDE VALLEY OF OREGON-
335 AM PDT TUE MAY 5 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....70-75.
* MIN HUMIDITY........29-34 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 5 TO 11 MPH INCREASING TO
NORTH 11 TO 17 MPH WITH GUSTS UP TO 30 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 9 TO 15 MPH INCREASING TO
NORTH 15 TO 21 MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 10 MPH INCREASING TO AROUND 20
MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW TO MODERATE (161-267) INCREASING TO VERY
HIGH (1020-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....42-47.
* MAX HUMIDITY........61-73 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTH WINDS 9 TO 15 MPH WITH GUSTS UP TO 30
MPH BECOMING NORTHWEST 1 TO 5 MPH AFTER MIDNIGHT.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 10 TO 16 MPH DECREASING TO 2
TO 7 MPH AFTER MIDNIGHT.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTH AROUND 15 MPH DECREASING TO AROUND 5
MPH AFTER MIDNIGHT.
* VENTILATION INDEX...MODERATE (311-455) DECREASING TO LOW (33-65)
AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....74-79.
* MIN HUMIDITY........29-34 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 NORTHWEST 3
TO 7 MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (25-43) INCREASING TO MODERATE (354-470)
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
PARTLY CLOUDY. LOWS 45 TO 50. HIGHS 73 TO 78. WEST
WINDS 4 TO 9 MPH.
FRIDAY
MOSTLY CLOUDY. LOWS 43 TO 48. HIGHS 69 TO 74. WEST
WINDS 4 TO 9 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 40 TO 45. HIGHS 66 TO 71.
NORTHWEST WINDS 7 TO 13 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 40 TO 45. HIGHS 75 TO 80. SOUTH
WINDS 3 TO 8 MPH.
MONDAY
PARTLY CLOUDY. LOWS 45 TO 50. HIGHS 78 TO 83. SOUTH
WINDS 3 TO 8 MPH.
ORZ699-052330-
WESTERN FORESTED BLUE MOUNTAINS-
335 AM PDT TUE MAY 5 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....65-71...EXCEPT 59-65 RIDGES.
* MIN HUMIDITY........31-42 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 1 TO 6 MPH SHIFTING TO THE
NORTH 6 TO 12 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTH WINDS 5 TO 11 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 10 MPH INCREASING TO AROUND 20
MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW TO MODERATE (68-236) INCREASING TO VERY
HIGH (909-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....41-47.
* MAX HUMIDITY........56-65 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTH WINDS 4 TO 9 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....NORTH WINDS 5 TO 11 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 15 MPH BECOMING NORTHEAST AROUND
5 MPH AFTER MIDNIGHT.
* VENTILATION INDEX...MODERATE (251-429) DECREASING TO LOW (25-51)
AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....70-76...EXCEPT 64-70 RIDGES.
* MIN HUMIDITY........27-35 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 6
MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (25-60) INCREASING TO MODERATE TO HIGH
(448-628) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
PARTLY CLOUDY. LOWS 43 TO 48. HIGHS 65 TO 73. WEST
WINDS 2 TO 7 MPH.
FRIDAY
MOSTLY CLOUDY. LOWS 42 TO 47. HIGHS 61 TO 69. WEST
WINDS 2 TO 7 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 37 TO 42. HIGHS 60 TO 68. WEST
WINDS 4 TO 10 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 38 TO 43. HIGHS 69 TO 76. SOUTHWEST
WINDS 1 TO 6 MPH.
MONDAY
PARTLY CLOUDY. LOWS 44 TO 49. HIGHS 71 TO 79. SOUTHWEST
WINDS 1 TO 6 MPH.
ORZ696-052330-
JOHN DAY VALLEY-
335 AM PDT TUE MAY 5 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....68-77...EXCEPT 64-69 RIDGES.
* MIN HUMIDITY........26-33 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 1 TO 6 MPH INCREASING TO
NORTH 7 TO 13 MPH WITH GUSTS UP TO 25 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 2 TO 7 MPH SHIFTING TO THE
NORTH 7 TO 13 MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......10000 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH INCREASING TO NORTH
AROUND 20 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW (69-193) INCREASING TO VERY HIGH
(944-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....45-50.
* MAX HUMIDITY........56-67 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTH WINDS 4 TO 10 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....NORTH WINDS 5 TO 11 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 15 MPH BECOMING NORTHEAST AROUND
5 MPH AFTER MIDNIGHT.
* VENTILATION INDEX...MODERATE TO HIGH (312-502) DECREASING TO LOW
(25-43) AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....73-81...EXCEPT 68-73 RIDGES.
* MIN HUMIDITY........22-28 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.......9000 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH SHIFTING TO THE WEST
IN THE AFTERNOON.
* VENTILATION INDEX...LOW (25-54) INCREASING TO MODERATE TO HIGH
(431-567) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
MOSTLY CLEAR. LOWS 45 TO 50. HIGHS 70 TO 79. WEST
WINDS 2 TO 7 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 44 TO 49. HIGHS 66 TO 74. WEST
WINDS 3 TO 8 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 39 TO 44. HIGHS 66 TO 74. WEST
WINDS 6 TO 12 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 41 TO 46. HIGHS 75 TO 83. SOUTH
WINDS 1 TO 6 MPH.
MONDAY
PARTLY CLOUDY. LOWS 47 TO 52. HIGHS 76 TO 84. WEST
WINDS 1 TO 6 MPH.
ORZ700-052330-
CENTRAL MOUNTAINS OF OREGON-
335 AM PDT TUE MAY 5 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....71-78...EXCEPT 63-70 RIDGES.
* MIN HUMIDITY........25-30 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 1 TO 5 MPH INCREASING TO
NORTH 6 TO 12 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTH WINDS 4 TO 10 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......9500 FT AGL.
* TRANSPORT WINDS.....NORTH 10 TO 15 MPH.
* VENTILATION INDEX...LOW (53-165) INCREASING TO VERY HIGH
(816-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....42-49.
* MAX HUMIDITY........63-77 PERCENT...EXCEPT 59-65 PERCENT RIDGES.
* HUMIDITY RECOVERY...GOOD...EXCEPT MODERATE RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTH WINDS 4 TO 9 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....NORTH WINDS 4 TO 9 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 15 MPH DECREASING TO AROUND 5
MPH AFTER MIDNIGHT.
* VENTILATION INDEX...MODERATE TO HIGH (376-588) DECREASING TO LOW
(25-37) AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....75-81...EXCEPT 68-73 RIDGES.
* MIN HUMIDITY........19-26 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 6
MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (25-47) INCREASING TO MODERATE TO HIGH
(430-558) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
MOSTLY CLEAR. LOWS 42 TO 48. HIGHS 73 TO 78. WEST
WINDS 3 TO 8 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 41 TO 46. HIGHS 67 TO 73. WEST
WINDS 4 TO 9 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 35 TO 41. HIGHS 69 TO 75. WEST
WINDS 6 TO 12 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 39 TO 44. HIGHS 77 TO 82. SOUTH
WINDS 1 TO 6 MPH.
MONDAY
PARTLY CLOUDY. LOWS 44 TO 49. HIGHS 78 TO 84. WEST
WINDS 1 TO 6 MPH.
ORZ703-052330-
WARM SPRINGS RESERVATION-
335 AM PDT TUE MAY 5 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....74-81...EXCEPT 63-72 RIDGES.
* MIN HUMIDITY........26-34 PERCENT...EXCEPT 33-48 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING NORTHEAST 2
TO 7 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTH WINDS 3 TO 8 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
* VENTILATION INDEX...LOW (34-88) INCREASING TO MODERATE TO HIGH
(357-599) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....48-53.
* MAX HUMIDITY........70-81 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTH WINDS 2 TO 7 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 3 TO 8 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW TO MODERATE (161-325) DECREASING TO LOW
(25-43) AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....76-84...EXCEPT 65-73 RIDGES.
* MIN HUMIDITY........25-33 PERCENT...EXCEPT 31-46 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING WEST 3 TO 8
MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....WEST WINDS 4 TO 9 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (25-61) INCREASING TO HIGH (502-674) IN
THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
PARTLY CLOUDY. LOWS 45 TO 50. HIGHS 67 TO 80. WEST
WINDS 5 TO 11 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 44 TO 49. HIGHS 61 TO 73. WEST
WINDS 5 TO 11 MPH.
SATURDAY
A SLIGHT CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 40 TO
45. HIGHS 67 TO 77. WEST WINDS 6 TO 12 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 42 TO 47. HIGHS 73 TO 83. SOUTHEAST
WINDS 1 TO 6 MPH.
MONDAY
PARTLY CLOUDY. LOWS 45 TO 50. HIGHS 72 TO 84. WEST
WINDS 3 TO 8 MPH.
ORZ704-052330-
NORTHERN DESCHUTES NATIONAL FOREST-
335 AM PDT TUE MAY 5 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....73-78...EXCEPT 60-70 RIDGES.
* MIN HUMIDITY........29-34 PERCENT...EXCEPT 36-51 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING NORTHEAST 2
TO 7 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING NORTHEAST 4
TO 9 MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
* VENTILATION INDEX...LOW (34-74) INCREASING TO MODERATE TO HIGH
(380-608) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....43-48.
* MAX HUMIDITY........72-86 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 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....NORTH WINDS 4 TO 9 MPH IN THE EVENING
BECOMING LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW TO MODERATE (161-309) DECREASING TO LOW
(25-48) AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....75-80...EXCEPT 63-73 RIDGES.
* MIN HUMIDITY........26-31 PERCENT...EXCEPT 31-46 PERCENT RIDGES.
* 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 4 TO 9
MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (26-62) INCREASING TO MODERATE TO HIGH
(446-650) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
PARTLY CLOUDY. LOWS 42 TO 47. HIGHS 65 TO 76. WEST
WINDS 4 TO 10 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 40 TO 45. HIGHS 57 TO 69. WEST
WINDS 6 TO 12 MPH.
SATURDAY
A SLIGHT CHANCE OF SHOWERS. MOSTLY CLEAR. LOWS 36 TO
41. HIGHS 64 TO 74. WEST WINDS 6 TO 12 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 39 TO 44. HIGHS 71 TO 81. EAST WINDS
UP TO 5 MPH.
MONDAY
PARTLY CLOUDY. LOWS 42 TO 47. HIGHS 71 TO 82. WEST
WINDS 2 TO 7 MPH.
ORZ705-052330-
SOUTHERN DESCHUTES NATIONAL FOREST-
335 AM PDT TUE MAY 5 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....70-75...EXCEPT 60-68 RIDGES.
* MIN HUMIDITY........27-34 PERCENT...EXCEPT 31-46 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING NORTH 3 TO
8 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTH WINDS 3 TO 8 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....NORTH 10 TO 15 MPH.
* VENTILATION INDEX...LOW (53-137) INCREASING TO HIGH TO VERY HIGH
(518-990) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....40-45.
* MAX HUMIDITY........74-89 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTH WINDS 2 TO 7 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....NORTH WINDS 4 TO 9 MPH IN THE EVENING
BECOMING LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTH AROUND 15 MPH DECREASING TO AROUND 5
MPH AFTER MIDNIGHT.
* VENTILATION INDEX...MODERATE TO HIGH (220-560) DECREASING TO LOW
(25-39) AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....73-78...EXCEPT 64-72 RIDGES.
* MIN HUMIDITY........21-33 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* 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.......8500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (25-46) INCREASING TO MODERATE TO HIGH
(399-519) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
MOSTLY CLEAR. LOWS 39 TO 44. HIGHS 67 TO 76. WEST
WINDS 2 TO 7 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 39 TO 44. HIGHS 59 TO 70. WEST
WINDS 3 TO 8 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 34 TO 39. HIGHS 66 TO 75. WEST
WINDS 3 TO 8 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 36 TO 41. HIGHS 73 TO 82. SOUTH
WINDS UP TO 5 MPH.
MONDAY
PARTLY CLOUDY. LOWS 41 TO 46. HIGHS 73 TO 83. WEST
WINDS 1 TO 6 MPH.
ORZ697-052330-
CENTRAL BLUE MOUNTAINS-
335 AM PDT TUE MAY 5 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....66-71...EXCEPT 60-66 RIDGES.
* MIN HUMIDITY........28-34 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTH WINDS 2 TO 7 MPH INCREASING TO 7 TO 13
MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTH WINDS 7 TO 13 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......9500 FT AGL.
* TRANSPORT WINDS.....NORTH 15 TO 20 MPH.
* VENTILATION INDEX...LOW TO MODERATE (130-318) INCREASING TO VERY
HIGH (1014-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....40-45.
* MAX HUMIDITY........58-68 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTH WINDS 5 TO 11 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....NORTH WINDS 7 TO 13 MPH DECREASING TO 1 TO 5
MPH AFTER MIDNIGHT.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTH 10 TO 15 MPH.
* VENTILATION INDEX...MODERATE TO HIGH (387-575) DECREASING TO LOW
(25-60) AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....70-75...EXCEPT 64-70 RIDGES.
* MIN HUMIDITY........23-30 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 NORTHWEST 2
TO 7 MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (25-68) INCREASING TO MODERATE TO HIGH
(452-594) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
PARTLY CLOUDY. LOWS 41 TO 46. HIGHS 66 TO 73. WEST
WINDS 2 TO 7 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 40 TO 45. HIGHS 63 TO 69. WEST
WINDS 3 TO 8 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 34 TO 39. HIGHS 61 TO 68.
NORTHWEST WINDS 6 TO 12 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 37 TO 42. HIGHS 70 TO 77. SOUTH
WINDS 1 TO 6 MPH.
MONDAY
PARTLY CLOUDY. LOWS 43 TO 48. HIGHS 73 TO 80. SOUTHWEST
WINDS 2 TO 7 MPH.
ORZ698-052330-
SOUTHERN BLUE MOUNTAINS-
335 AM PDT TUE MAY 5 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....67-72...EXCEPT 62-67 RIDGES.
* MIN HUMIDITY........25-30 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTH WINDS 6 TO 12 MPH.
* RIDGES/UPR SLOPES....NORTH WINDS 6 TO 12 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......10000 FT AGL.
* TRANSPORT WINDS.....NORTH 15 TO 20 MPH.
* VENTILATION INDEX...LOW TO MODERATE (196-334) INCREASING TO VERY
HIGH (1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....40-45.
* MAX HUMIDITY........62-71 PERCENT.
* HUMIDITY RECOVERY...GOOD...EXCEPT MODERATE RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTH WINDS 4 TO 10 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....NORTH WINDS 5 TO 11 MPH DECREASING TO 1 TO 5
MPH AFTER MIDNIGHT.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTH AROUND 20 MPH DECREASING TO AROUND 10
MPH AFTER MIDNIGHT.
* VENTILATION INDEX...MODERATE TO HIGH (496-626) DECREASING TO LOW
(25-56) AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....71-76.
* MIN HUMIDITY........19-24 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.......9000 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (25-53) INCREASING TO MODERATE TO HIGH
(467-583) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
PARTLY CLOUDY. LOWS 41 TO 46. HIGHS 71 TO 77. WEST
WINDS 3 TO 8 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 40 TO 45. HIGHS 67 TO 73. WEST
WINDS 4 TO 9 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 34 TO 39. HIGHS 66 TO 72.
NORTHWEST WINDS 6 TO 12 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 37 TO 42. HIGHS 74 TO 80. SOUTH
WINDS 1 TO 6 MPH.
MONDAY
PARTLY CLOUDY. LOWS 44 TO 49. HIGHS 77 TO 83. SOUTHWEST
WINDS 1 TO 6 MPH.
8-14 DAY OUTLOOK FOR TUESDAY MAY 12 THROUGH MONDAY MAY 18
A GREATER CHANCE OF ABOVE-NORMAL TEMPERATURES AND NEAR- TO BELOW-
NORMAL PRECIPITATION.
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