174
FNUS56 KPDT 181419
FWFPDT
FIRE WEATHER PLANNING FORECAST FOR NE OREGON AND SE WASHINGTON
NATIONAL WEATHER SERVICE PENDLETON OR
719 AM PDT FRI JUL 18 2025
...RED FLAG WARNING IN EFFECT FROM 1 PM TO 10 PM PDT THIS
EVENING FOR WA690 FOR WIND AND LOW RELATIVE HUMIDITY...
...RED FLAG WARNING IN EFFECT UNTIL 10 PM PDT THIS EVENING FOR
WA691, OR691, OR696, OR700, OR701, OR703 FOR WIND AND LOW RELATIVE
HUMIDITY...
DISCUSSION
CRITICAL OVERLAP OF RH AND WINDS AHEAD OF COLD FRONT
TONIGHT, OUTSIDE THE EASTERN MOUNTAINS AND THE UPPER EAST SLOPES
OF THE CASCADES. HIGH CONFIDENCE (>80%) IN 15 MPH OR HIGHER WINDS
THIS AFTERNOON/EVENING WITH 10-20% AFTERNOON RH, HIGHEST WINDS IN
THE GORGE SPILLING INTO THE LOWER BASIN AND KITTIAS VALLEY WITH
GUSTS EXCEEDING 30 MPH. ELEVATED FIRE WEATHER CONDITIONS TOMORROW
DESPITE COOLING WITH BREEZY WINDS AND SIMILAR RH. LOW FIRE
WEATHER CONDITIONS SUNDAY INTO MIDWEEK.
***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 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.
WAZ695-190000-
EAST WASHINGTON SOUTH CENTRAL CASCADE MOUNTAINS-
719 AM PDT FRI JUL 18 2025
TODAY
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
* MAX TEMPERATURE.....75-85...EXCEPT 66-75 RIDGES.
* MIN HUMIDITY........26-41 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....0 PERCENT.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 10 MPH INCREASING TO AROUND 20
MPH IN THE AFTERNOON.
* VENTILATION INDEX...POOR (53-183) INCREASING TO FAIR TO EXCELLENT
(438-798) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* MIN TEMPERATURE.....46-53...EXCEPT 42-48 RIDGES.
* MAX HUMIDITY........61-76 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 6 TO 12 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 6 TO 12 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....WEST 15 TO 20 MPH.
* VENTILATION INDEX...FAIR TO GOOD (204-546) DECREASING TO POOR TO
FAIR (25-213) AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....68-77...EXCEPT 59-68 RIDGES.
* MIN HUMIDITY........29-44 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 4 TO 9 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 4 TO 9 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 15 MPH.
* VENTILATION INDEX...POOR TO FAIR (43-231) INCREASING TO FAIR TO
GOOD (289-589) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
PARTLY CLOUDY. LOWS 43 TO 51. HIGHS 62 TO 77. WEST
WINDS 5 TO 11 MPH.
MONDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 46 TO 54. HIGHS 63 TO 77. NORTHWEST
WINDS 3 TO 8 MPH.
TUESDAY
A SLIGHT CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 48 TO
55. HIGHS 67 TO 81. NORTHWEST WINDS 2 TO 7 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 51 TO 58. HIGHS 71 TO 85. WEST
WINDS 2 TO 7 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 51 TO 58. HIGHS 70 TO 83. WEST
WINDS 2 TO 7 MPH.
WAZ690-190000-
KITTITAS VALLEY-
719 AM PDT FRI JUL 18 2025
...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 10 PM
PDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY...
TODAY
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
* MAX TEMPERATURE.....86-95...EXCEPT 75-88 RIDGES.
* MIN HUMIDITY........16-24 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 5 TO 11 MPH. GUSTS TO 25 MPH IN
THE AFTERNOON.
* RIDGES/UPR SLOPES....WEST WINDS 5 TO 11 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......10500 FT AGL.
* TRANSPORT WINDS.....WEST 10 TO 15 MPH.
* VENTILATION INDEX...POOR TO FAIR (102-210) INCREASING TO
EXCELLENT (839-1025) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* MIN TEMPERATURE.....54-60.
* MAX HUMIDITY........51-66 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 11 TO 17 MPH WITH GUSTS UP
TO 30 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 11 TO 17 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST AROUND 25 MPH DECREASING TO AROUND
15 MPH AFTER MIDNIGHT.
* VENTILATION INDEX...FAIR TO GOOD (353-591) DECREASING TO POOR
(37-161) AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....79-88...EXCEPT 69-81 RIDGES.
* MIN HUMIDITY........20-28 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 7 TO 13 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 7 TO 13 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......9500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH.
* VENTILATION INDEX...POOR TO FAIR (95-259) INCREASING TO GOOD TO
EXCELLENT (533-851) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
PARTLY CLOUDY. LOWS 53 TO 58. HIGHS 78 TO 86. NORTHWEST
WINDS 9 TO 15 MPH.
MONDAY
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 56 TO 62. HIGHS 76 TO 85. NORTHWEST WINDS
5 TO 11 MPH.
TUESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
57 TO 62. HIGHS 81 TO 89. NORTHWEST WINDS 2 TO 7 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 59 TO 64. HIGHS 86 TO 94. WEST
WINDS 2 TO 7 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 60 TO 65. HIGHS 86 TO 95. WEST
WINDS 4 TO 10 MPH.
WAZ694-190000-
YAKAMA ALPINE DISTRICT-
719 AM PDT FRI JUL 18 2025
TODAY
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
* MAX TEMPERATURE.....80-90...EXCEPT 70-82 RIDGES.
* MIN HUMIDITY........20-35 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 1 TO 5 MPH INCREASING TO 5 TO 11
MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....WEST WINDS 2 TO 6 MPH INCREASING TO 6 TO 12
MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 10 MPH INCREASING TO AROUND 20
MPH IN THE AFTERNOON.
* VENTILATION INDEX...POOR (44-124) INCREASING TO GOOD TO EXCELLENT
(530-832) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* MIN TEMPERATURE.....46-54.
* MAX HUMIDITY........56-71 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 6 TO 12 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 6 TO 12 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....WEST 15 TO 20 MPH.
* VENTILATION INDEX...FAIR (256-474) DECREASING TO POOR (25-114)
AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....73-83...EXCEPT 63-76 RIDGES.
* MIN HUMIDITY........20-35 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 10 TO 15 MPH.
* VENTILATION INDEX...POOR (46-170) INCREASING TO FAIR TO GOOD
(347-619) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
PARTLY CLOUDY. LOWS 45 TO 52. HIGHS 68 TO 81. WEST
WINDS 4 TO 9 MPH.
MONDAY
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
48 TO 56. HIGHS 67 TO 80. WEST WINDS 2 TO 7 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 49 TO 56. HIGHS 71 TO 85. WEST
WINDS 1 TO 6 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 52 TO 59. HIGHS 76 TO 90. WEST
WINDS 1 TO 6 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 53 TO 60. HIGHS 76 TO 90. WEST
WINDS 2 TO 7 MPH.
ORZ691-WAZ691-190000-
LOWER COLUMBIA BASIN OF OREGON-LOWER COLUMBIA BASIN OF WASHINGTON-
719 AM PDT FRI JUL 18 2025
...RED FLAG WARNING IN EFFECT UNTIL 10 PM PDT THIS EVENING FOR WIND AND
LOW RELATIVE HUMIDITY...
TODAY
* SKY/WEATHER.........SUNNY THEN BECOMING PARTLY CLOUDY.
* MAX TEMPERATURE.....88-96.
* MIN HUMIDITY........15-21 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 6 TO 12 MPH. GUSTS TO 25 MPH
IN THE AFTERNOON.
* RIDGES/UPR SLOPES....WEST WINDS 6 TO 12 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......10500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH INCREASING TO WEST
AROUND 20 MPH IN THE AFTERNOON.
* VENTILATION INDEX...POOR (78-196) INCREASING TO EXCELLENT
(828-1034) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* MIN TEMPERATURE.....57-63...EXCEPT 52-60 RIDGES.
* MAX HUMIDITY........49-62 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 11 TO 17 MPH. GUSTS TO 30 MPH IN
THE EVENING.
* RIDGES/UPR SLOPES....WEST WINDS 11 TO 17 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....WEST 15 TO 20 MPH.
* VENTILATION INDEX...FAIR TO GOOD (472-672) DECREASING TO POOR
(30-106) AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....81-89.
* MIN HUMIDITY........17-24 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 7 TO 13 MPH WITH GUSTS UP TO 25
MPH.
* RIDGES/UPR SLOPES....WEST WINDS 7 TO 13 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....WEST 15 TO 20 MPH.
* VENTILATION INDEX...POOR TO FAIR (104-324) INCREASING TO GOOD TO
EXCELLENT (568-952) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
PARTLY CLOUDY. LOWS 53 TO 59. HIGHS 80 TO 87. WEST
WINDS 7 TO 13 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 56 TO 63. HIGHS 78 TO 85. WEST
WINDS 5 TO 11 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 55 TO 62. HIGHS 84 TO 91. WEST
WINDS 2 TO 7 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 59 TO 64. HIGHS 89 TO 95. WEST
WINDS 2 TO 7 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 61 TO 66. HIGHS 88 TO 96. WEST
WINDS 4 TO 9 MPH.
ORZ692-WAZ692-190000-
NORTHERN BLUE MOUNTAINS OF OREGON-BLUE MOUNTAINS OF WASHINGTON-
719 AM PDT FRI JUL 18 2025
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....83-93...EXCEPT 75-82 RIDGES.
* MIN HUMIDITY........14-20 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 3 TO 8 MPH.
* 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.......9500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
* VENTILATION INDEX...POOR (56-148) INCREASING TO GOOD TO EXCELLENT
(697-959) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY.
* MIN TEMPERATURE.....52-60...EXCEPT 50-55 RIDGES.
* MAX HUMIDITY........53-68 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 6 TO 12 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 6 TO 12 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....WEST 15 TO 20 MPH.
* VENTILATION INDEX...FAIR TO GOOD (424-642) DECREASING TO POOR
(25-156) AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
* MAX TEMPERATURE.....74-84...EXCEPT 67-74 RIDGES.
* MIN HUMIDITY........20-28 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 5 TO 11 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 5 TO 11 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 20 MPH.
* VENTILATION INDEX...FAIR (246-454) INCREASING TO EXCELLENT
(809-1049) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
PARTLY CLOUDY. LOWS 48 TO 55. HIGHS 70 TO 82. WEST
WINDS 4 TO 9 MPH.
MONDAY
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
52 TO 60. HIGHS 67 TO 78. WEST WINDS 2 TO 7 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 50 TO 58. HIGHS 73 TO 84. WEST
WINDS 1 TO 5 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 53 TO 61. HIGHS 77 TO 89. WEST
WINDS 1 TO 6 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 55 TO 63. HIGHS 78 TO 90. WEST
WINDS 2 TO 7 MPH.
ORZ693-WAZ693-190000-
CANYON GRASSLANDS OF WALLOWA COUNTY-
SOUTHEAST WASHINGTON GRANDE RONDE VALLEY-
719 AM PDT FRI JUL 18 2025
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....85-95...EXCEPT 80-87 RIDGES.
* MIN HUMIDITY........9-14 PERCENT.
* 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 2 TO 7
MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......13000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH INCREASING TO WEST
AROUND 15 MPH IN THE AFTERNOON.
* VENTILATION INDEX...POOR (34-96) INCREASING TO EXCELLENT
(801-1005) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY.
* MIN TEMPERATURE.....53-63.
* MAX HUMIDITY........45-60 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 4 TO 9 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 4 TO 9 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....WEST AROUND 15 MPH.
* VENTILATION INDEX...FAIR TO GOOD (418-638) DECREASING TO POOR
(25-147) AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* MAX TEMPERATURE.....77-86...EXCEPT 72-79 RIDGES.
* MIN HUMIDITY........20-27 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.......10500 FT AGL.
* TRANSPORT WINDS.....WEST 15 TO 20 MPH.
* VENTILATION INDEX...POOR TO FAIR (130-450) INCREASING TO
EXCELLENT (801-1050) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
PARTLY CLOUDY. LOWS 47 TO 57. HIGHS 75 TO 85. WEST
WINDS 3 TO 8 MPH.
MONDAY
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 51 TO 61. HIGHS 71 TO 80. NORTHWEST WINDS
2 TO 7 MPH.
TUESDAY
A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. PARTLY
CLOUDY. LOWS 49 TO 59. HIGHS 76 TO 84. TERRAIN DRIVEN WINDS LESS
THAN 5 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 50 TO 60. HIGHS 80 TO 90. WEST
WINDS 1 TO 5 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 53 TO 63. HIGHS 83 TO 92. WEST
WINDS 1 TO 6 MPH.
ORZ701-190000-
EASTERN COLUMBIA RIVER GORGE OF OREGON-
719 AM PDT FRI JUL 18 2025
...RED FLAG WARNING IN EFFECT UNTIL 10 PM PDT THIS EVENING FOR WIND AND
LOW RELATIVE HUMIDITY...
TODAY
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
* MAX TEMPERATURE.....86-91...EXCEPT 80-89 RIDGES.
* MIN HUMIDITY........21-33 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 6 TO 12 MPH, GUSTS TO 25 MPH IN
THE AFTERNOON. IN THE EASTERN COLUMBIA RIVER GORGE, WEST
WINDS 5 TO 11 MPH INCREASING TO 12 TO 18 MPH IN THE
AFTERNOON, GUSTS TO 30 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....WEST WINDS 6 TO 12 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 10 MPH INCREASING TO AROUND 20
MPH IN THE AFTERNOON.
* VENTILATION INDEX...POOR TO FAIR (90-232) INCREASING TO GOOD TO
EXCELLENT (686-924) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* MIN TEMPERATURE.....52-59.
* MAX HUMIDITY........54-68 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...GUSTS TO 30 MPH IN THE EVENING. WEST WINDS 8
TO 14 MPH. IN THE EASTERN COLUMBIA RIVER GORGE, GUSTS TO 30
MPH.
* RIDGES/UPR SLOPES....WEST WINDS 8 TO 14 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....WEST 15 TO 20 MPH.
* VENTILATION INDEX...FAIR TO GOOD (358-618) DECREASING TO POOR
(36-188) AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....79-84...EXCEPT 74-81 RIDGES.
* MIN HUMIDITY........23-33 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 6 TO 12 MPH...EXCEPT WEST 8 TO 14
MPH IN THE EASTERN COLUMBIA RIVER GORGE. GUSTS TO 25 MPH IN
THE AFTERNOON. IN THE EASTERN COLUMBIA RIVER GORGE, GUSTS TO
30 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 6 TO 12 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....WEST 15 TO 20 MPH.
* VENTILATION INDEX...POOR TO FAIR (107-307) INCREASING TO GOOD TO
EXCELLENT (589-859) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
PARTLY CLOUDY. LOWS 50 TO 56. HIGHS 77 TO 82. WEST
WINDS 7 TO 13 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 53 TO 59. HIGHS 77 TO 82. WEST
WINDS 5 TO 11 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 53 TO 58. HIGHS 84 TO 89. WEST
WINDS 3 TO 8 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 56 TO 62. HIGHS 88 TO 93.
NORTHWEST WINDS 2 TO 7 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 58 TO 63. HIGHS 85 TO 91. WEST
WINDS 4 TO 9 MPH.
ORZ702-190000-
EAST SLOPES OF THE MT. HOOD NATIONAL FOREST-
719 AM PDT FRI JUL 18 2025
TODAY
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
* MAX TEMPERATURE.....81-91...EXCEPT 75-84 RIDGES.
* MIN HUMIDITY........23-36 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.......6000 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 10 MPH INCREASING TO AROUND 20
MPH IN THE AFTERNOON.
* VENTILATION INDEX...POOR (50-152) INCREASING TO FAIR TO GOOD
(360-668) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY.
* MIN TEMPERATURE.....46-55.
* MAX HUMIDITY........54-69 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 4 TO 9 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 4 TO 9 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....WEST AROUND 25 MPH DECREASING TO AROUND 15
MPH AFTER MIDNIGHT.
* VENTILATION INDEX...POOR TO FAIR (193-475) DECREASING TO POOR
(25-118) AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
* MAX TEMPERATURE.....74-84...EXCEPT 68-77 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.......6500 FT AGL.
* TRANSPORT WINDS.....WEST 15 TO 20 MPH.
* VENTILATION INDEX...POOR TO FAIR (53-215) INCREASING TO FAIR TO
GOOD (338-654) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
PARTLY CLOUDY. LOWS 45 TO 53. HIGHS 66 TO 80. WEST
WINDS 2 TO 7 MPH.
MONDAY
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
47 TO 56. HIGHS 66 TO 80. WEST WINDS 2 TO 7 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 47 TO 55. HIGHS 73 TO 86. WEST
WINDS 1 TO 5 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 51 TO 59. HIGHS 76 TO 90. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 52 TO 60. HIGHS 75 TO 89. WEST
WINDS 1 TO 6 MPH.
ORZ695-190000-
EAGLE CAP WILDERNESS-
719 AM PDT FRI JUL 18 2025
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....81-92...EXCEPT 70-81 RIDGES.
* MIN HUMIDITY........11-18 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING WEST 3 TO 7
MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING WEST 3 TO 7
MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......12500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 5 MPH INCREASING TO AROUND 15 MPH
IN THE AFTERNOON.
* VENTILATION INDEX...POOR (28-76) INCREASING TO EXCELLENT
(720-990) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
* MIN TEMPERATURE.....52-59...EXCEPT 46-53 RIDGES.
* MAX HUMIDITY........49-61 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 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.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
* VENTILATION INDEX...FAIR (279-485) DECREASING TO POOR (25-99)
AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....73-86...EXCEPT 63-75 RIDGES.
* MIN HUMIDITY........25-38 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 3 TO 8 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 4 TO 9 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......10500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 10 MPH INCREASING TO AROUND 20
MPH IN THE AFTERNOON.
* VENTILATION INDEX...POOR TO FAIR (50-260) INCREASING TO GOOD TO
EXCELLENT (691-999) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
PARTLY CLOUDY. LOWS 45 TO 54. HIGHS 65 TO 80. WEST
WINDS 3 TO 8 MPH.
MONDAY
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 47 TO 57. HIGHS 61 TO 76. NORTHWEST WINDS
2 TO 7 MPH.
TUESDAY
A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. PARTLY
CLOUDY. LOWS 45 TO 55. HIGHS 65 TO 80. NORTHWEST WINDS 1 TO
5 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 47 TO 56. HIGHS 70 TO 85. WEST
WINDS 1 TO 6 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 50 TO 59. HIGHS 73 TO 88. WEST
WINDS 1 TO 6 MPH.
ORZ694-190000-
GRANDE RONDE VALLEY OF OREGON-
719 AM PDT FRI JUL 18 2025
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....90-95.
* MIN HUMIDITY........8-13 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING NORTHWEST 2
TO 7 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTH WINDS 2 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......10000 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH INCREASING TO WEST
AROUND 15 MPH IN THE AFTERNOON.
* VENTILATION INDEX...POOR (65-107) INCREASING TO EXCELLENT
(846-1026) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....55-60.
* MAX HUMIDITY........58-66 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 4 TO 10 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 4 TO 10 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 (473-585) DECREASING TO POOR
(47-101) AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
* MAX TEMPERATURE.....83-88.
* MIN HUMIDITY........21-26 PERCENT.
* 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.......9000 FT AGL.
* TRANSPORT WINDS.....WEST 10 TO 15 MPH.
* VENTILATION INDEX...POOR TO FAIR (134-272) INCREASING TO
EXCELLENT (883-1050) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
PARTLY CLOUDY. LOWS 50 TO 55. HIGHS 81 TO 86. NORTHWEST
WINDS 4 TO 9 MPH.
MONDAY
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 54 TO 59. HIGHS 76 TO 81. NORTHWEST WINDS
2 TO 7 MPH.
TUESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 52 TO 57. HIGHS 81 TO 86. NORTHWEST WINDS
2 TO 7 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 53 TO 58. HIGHS 86 TO 91.
NORTHWEST WINDS 1 TO 6 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 56 TO 61. HIGHS 88 TO 93.
NORTHWEST WINDS 1 TO 6 MPH.
ORZ699-190000-
WESTERN FORESTED BLUE MOUNTAINS-
719 AM PDT FRI JUL 18 2025
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....83-89...EXCEPT 76-83 RIDGES.
* MIN HUMIDITY........12-18 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING WEST 3 TO 7
MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING WEST 3 TO 7
MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......10000 FT AGL.
* TRANSPORT WINDS.....WEST 10 TO 15 MPH.
* VENTILATION INDEX...POOR (50-120) INCREASING TO EXCELLENT
(770-990) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....49-55.
* MAX HUMIDITY........60-70 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 10 TO 15 MPH.
* VENTILATION INDEX...FAIR TO GOOD (367-543) DECREASING TO POOR
(25-80) AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
* MAX TEMPERATURE.....76-82...EXCEPT 70-77 RIDGES.
* MIN HUMIDITY........23-31 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 15 TO 20 MPH.
* VENTILATION INDEX...POOR TO FAIR (134-280) INCREASING TO
EXCELLENT (790-1016) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
PARTLY CLOUDY. LOWS 46 TO 51. HIGHS 70 TO 80. WEST
WINDS 2 TO 7 MPH.
MONDAY
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 49 TO 55. HIGHS 66 TO 76. NORTHWEST WINDS
1 TO 5 MPH.
TUESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 47 TO 53. HIGHS 71 TO 81. TERRAIN DRIVEN
WINDS LESS THAN 5 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 50 TO 56. HIGHS 77 TO 85. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 52 TO 58. HIGHS 78 TO 88. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
ORZ696-190000-
JOHN DAY VALLEY-
719 AM PDT FRI JUL 18 2025
...RED FLAG WARNING IN EFFECT UNTIL 10 PM PDT THIS EVENING FOR WIND AND
LOW RELATIVE HUMIDITY...
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. HAZY.
* MAX TEMPERATURE.....85-93...EXCEPT 80-85 RIDGES.
* MIN HUMIDITY........9-14 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING WEST 3 TO 8
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.......11000 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 5 MPH INCREASING TO AROUND 15 MPH
IN THE AFTERNOON.
* VENTILATION INDEX...POOR (56-126) INCREASING TO EXCELLENT
(820-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. HAZY IN THE EVENING.
* MIN TEMPERATURE.....52-58.
* MAX HUMIDITY........56-67 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 4 TO 9 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 4 TO 9 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....WEST 10 TO 15 MPH.
* VENTILATION INDEX...FAIR TO GOOD (487-693) DECREASING TO POOR
(25-80) AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
* MAX TEMPERATURE.....79-86...EXCEPT 74-79 RIDGES.
* MIN HUMIDITY........21-26 PERCENT.
* 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 2 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 10 MPH INCREASING TO AROUND 20
MPH IN THE AFTERNOON.
* VENTILATION INDEX...POOR TO FAIR (127-231) INCREASING TO
EXCELLENT (807-1047) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
PARTLY CLOUDY. LOWS 48 TO 54. HIGHS 76 TO 85. WEST
WINDS 3 TO 8 MPH.
MONDAY
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 52 TO 58. HIGHS 72 TO 81. NORTHWEST WINDS
2 TO 7 MPH.
TUESDAY
A SLIGHT CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 50 TO
55. HIGHS 78 TO 86. NORTHWEST WINDS 1 TO 5 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 52 TO 58. HIGHS 83 TO 91. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 54 TO 60. HIGHS 84 TO 93. WEST
WINDS 1 TO 5 MPH.
ORZ700-190000-
CENTRAL MOUNTAINS OF OREGON-
719 AM PDT FRI JUL 18 2025
...RED FLAG WARNING IN EFFECT UNTIL 10 PM PDT THIS EVENING FOR WIND AND
LOW RELATIVE HUMIDITY...
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. HAZY IN THE MORNING.
* MAX TEMPERATURE.....86-91...EXCEPT 79-84 RIDGES.
* MIN HUMIDITY........10-15 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING WEST 4 TO
10 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....0 PERCENT.
* MIXING HEIGHT.......11000 FT AGL.
* TRANSPORT WINDS.....WEST 10 TO 15 MPH.
* VENTILATION INDEX...POOR (53-115) INCREASING TO EXCELLENT
(815-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. HAZY IN THE EVENING.
* MIN TEMPERATURE.....47-56.
* MAX HUMIDITY........59-71 PERCENT.
* HUMIDITY RECOVERY...GOOD...EXCEPT MODERATE RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 7 TO 13 MPH WITH GUSTS UP TO
25 MPH BECOMING WEST 1 TO 6 MPH AFTER MIDNIGHT.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 4 TO 9 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....WEST 10 TO 15 MPH.
* VENTILATION INDEX...FAIR TO EXCELLENT (458-706) DECREASING TO
POOR (25-69) AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
* MAX TEMPERATURE.....80-85...EXCEPT 73-79 RIDGES.
* MIN HUMIDITY........22-27 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING WEST 4 TO 9
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.....WEST 10 TO 15 MPH.
* VENTILATION INDEX...POOR (89-197) INCREASING TO EXCELLENT
(730-1020) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
PARTLY CLOUDY. LOWS 43 TO 51. HIGHS 77 TO 83. WEST
WINDS 4 TO 10 MPH.
MONDAY
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 46 TO 54. HIGHS 73 TO 80. NORTHWEST WINDS
3 TO 8 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 45 TO 53. HIGHS 79 TO 85.
NORTHWEST WINDS 1 TO 6 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 48 TO 56. HIGHS 83 TO 90. WEST
WINDS 1 TO 6 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 49 TO 58. HIGHS 84 TO 91. WEST
WINDS 2 TO 7 MPH.
ORZ703-190000-
WARM SPRINGS RESERVATION-
719 AM PDT FRI JUL 18 2025
...RED FLAG WARNING IN EFFECT UNTIL 10 PM PDT THIS EVENING FOR WIND AND
LOW RELATIVE HUMIDITY...
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....84-94...EXCEPT 71-81 RIDGES.
* MIN HUMIDITY........16-24 PERCENT...EXCEPT 24-36 PERCENT RIDGES.
* 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....0 PERCENT.
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....WEST 10 TO 15 MPH.
* VENTILATION INDEX...POOR (60-142) INCREASING TO GOOD TO EXCELLENT
(553-829) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
* MIN TEMPERATURE.....55-60...EXCEPT 49-54 RIDGES.
* MAX HUMIDITY........56-62 PERCENT...EXCEPT 58-73 PERCENT RIDGES.
* HUMIDITY RECOVERY...MODERATE...EXCEPT GOOD RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 9 TO 15 MPH DECREASING TO 3 TO 8
MPH AFTER MIDNIGHT.
* RIDGES/UPR SLOPES....WEST WINDS 8 TO 14 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....WEST 15 TO 20 MPH.
* VENTILATION INDEX...FAIR TO GOOD (336-554) DECREASING TO POOR
(25-114) AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING SUNNY.
* MAX TEMPERATURE.....77-87...EXCEPT 65-74 RIDGES.
* MIN HUMIDITY........23-30 PERCENT...EXCEPT 31-46 PERCENT RIDGES.
* 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....0 PERCENT.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 15 MPH.
* VENTILATION INDEX...POOR TO FAIR (90-230) INCREASING TO GOOD TO
EXCELLENT (551-879) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
PARTLY CLOUDY. LOWS 48 TO 53. HIGHS 72 TO 85. WEST
WINDS 5 TO 11 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 50 TO 56. HIGHS 71 TO 83. WEST
WINDS 4 TO 9 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 50 TO 55. HIGHS 78 TO 88. NORTHWEST
WINDS 2 TO 7 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 53 TO 58. HIGHS 82 TO 93. WEST
WINDS 2 TO 7 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 54 TO 60. HIGHS 81 TO 93. WEST
WINDS 3 TO 8 MPH.
ORZ704-190000-
NORTHERN DESCHUTES NATIONAL FOREST-
719 AM PDT FRI JUL 18 2025
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....84-90...EXCEPT 71-81 RIDGES.
* MIN HUMIDITY........16-24 PERCENT.
* 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.......7500 FT AGL.
* TRANSPORT WINDS.....WEST 10 TO 15 MPH.
* VENTILATION INDEX...POOR (47-125) INCREASING TO GOOD TO EXCELLENT
(509-821) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
* MIN TEMPERATURE.....47-55.
* MAX HUMIDITY........59-74 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 5 TO 11 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 5 TO 11 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....WEST 15 TO 20 MPH.
* VENTILATION INDEX...FAIR TO GOOD (277-523) DECREASING TO POOR
(25-128) AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
* MAX TEMPERATURE.....78-84...EXCEPT 65-75 RIDGES.
* MIN HUMIDITY........27-32 PERCENT...EXCEPT 36-51 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....WEST WINDS 4 TO 9 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....WEST 15 TO 20 MPH.
* VENTILATION INDEX...POOR TO FAIR (96-272) INCREASING TO GOOD TO
EXCELLENT (533-851) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
PARTLY CLOUDY. LOWS 43 TO 50. HIGHS 68 TO 82. WEST
WINDS 4 TO 9 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 45 TO 51. HIGHS 66 TO 79. WEST
WINDS 2 TO 7 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 44 TO 50. HIGHS 71 TO 85. WEST
WINDS 1 TO 6 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 48 TO 53. HIGHS 75 TO 89. WEST
WINDS 1 TO 6 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 49 TO 55. HIGHS 75 TO 89. WEST
WINDS 2 TO 7 MPH.
ORZ705-190000-
SOUTHERN DESCHUTES NATIONAL FOREST-
719 AM PDT FRI JUL 18 2025
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....82-87...EXCEPT 72-80 RIDGES.
* MIN HUMIDITY........13-20 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING WEST 3 TO 7
MPH IN THE AFTERNOON.
* 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 (62-124) INCREASING TO EXCELLENT
(710-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....44-50.
* MAX HUMIDITY........68-83 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 10 TO 15 MPH.
* VENTILATION INDEX...FAIR (285-497) DECREASING TO POOR (28-66)
AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
* MAX TEMPERATURE.....77-82...EXCEPT 66-75 RIDGES.
* MIN HUMIDITY........26-33 PERCENT...EXCEPT 31-46 PERCENT RIDGES.
* 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 2 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....WEST 15 TO 20 MPH.
* VENTILATION INDEX...POOR (81-177) INCREASING TO GOOD TO EXCELLENT
(635-961) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
PARTLY CLOUDY. LOWS 41 TO 46. HIGHS 70 TO 81. WEST
WINDS 2 TO 7 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 44 TO 49. HIGHS 68 TO 77. NORTHWEST
WINDS 2 TO 7 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 42 TO 47. HIGHS 72 TO 81.
NORTHWEST WINDS UP TO 5 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 44 TO 50. HIGHS 76 TO 85. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 46 TO 51. HIGHS 77 TO 88. WEST
WINDS 1 TO 5 MPH.
ORZ697-190000-
CENTRAL BLUE MOUNTAINS-
719 AM PDT FRI JUL 18 2025
TODAY
* SKY/WEATHER.........SUNNY. HAZY IN THE MORNING.
* MAX TEMPERATURE.....83-88...EXCEPT 78-84 RIDGES.
* MIN HUMIDITY........8-13 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING WEST 5 TO 8
MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING WEST 5 TO 8
MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......11500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 10 MPH INCREASING TO AROUND 20
MPH IN THE AFTERNOON.
* VENTILATION INDEX...POOR (57-135) INCREASING TO EXCELLENT
(993-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. HAZY.
* MIN TEMPERATURE.....47-53.
* MAX HUMIDITY........58-73 PERCENT.
* HUMIDITY RECOVERY...GOOD...EXCEPT MODERATE 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.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
* VENTILATION INDEX...FAIR TO GOOD (436-606) DECREASING TO POOR
(25-75) AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
* MAX TEMPERATURE.....78-83...EXCEPT 72-79 RIDGES.
* MIN HUMIDITY........24-29 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING WEST 3 TO 7
MPH IN THE AFTERNOON.
* 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 15 TO 20 MPH.
* VENTILATION INDEX...POOR TO FAIR (95-215) INCREASING TO EXCELLENT
(861-1050) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
PARTLY CLOUDY. LOWS 44 TO 50. HIGHS 72 TO 79. WEST
WINDS 3 TO 8 MPH.
MONDAY
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 49 TO 54. HIGHS 68 TO 75. NORTHWEST WINDS
2 TO 7 MPH.
TUESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 46 TO 51. HIGHS 72 TO 79. NORTHWEST WINDS
1 TO 5 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 47 TO 53. HIGHS 76 TO 83.
TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 49 TO 55. HIGHS 79 TO 86.
NORTHWEST WINDS 1 TO 5 MPH.
ORZ698-190000-
SOUTHERN BLUE MOUNTAINS-
719 AM PDT FRI JUL 18 2025
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. HAZY IN THE MORNING.
* MAX TEMPERATURE.....84-91.
* MIN HUMIDITY........8-13 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING WEST 6 TO
11 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING WEST 5 TO 8
MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......12500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 10 MPH INCREASING TO AROUND 20
MPH IN THE AFTERNOON.
* VENTILATION INDEX...POOR (83-139) INCREASING TO EXCELLENT (1050)
IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. HAZY.
* MIN TEMPERATURE.....47-53.
* MAX HUMIDITY........54-67 PERCENT.
* HUMIDITY RECOVERY...GOOD...EXCEPT MODERATE RIDGES.
* 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 10 TO 15 MPH.
* VENTILATION INDEX...GOOD TO EXCELLENT (571-763) DECREASING TO
POOR (27-75) AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
* MAX TEMPERATURE.....79-84...EXCEPT 74-79 RIDGES.
* MIN HUMIDITY........19-24 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING WEST 3 TO 7
MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING WEST 3 TO 7
MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....WEST 15 TO 20 MPH.
* VENTILATION INDEX...POOR (117-187) INCREASING TO EXCELLENT
(993-1050) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
PARTLY CLOUDY. LOWS 45 TO 52. HIGHS 77 TO 85. NORTHWEST
WINDS 4 TO 9 MPH.
MONDAY
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 49 TO 56. HIGHS 73 TO 80. NORTHWEST WINDS
2 TO 7 MPH.
TUESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 47 TO 53. HIGHS 77 TO 83. NORTHWEST WINDS
2 TO 7 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 49 TO 54. HIGHS 80 TO 87.
SOUTHWEST WINDS 1 TO 6 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 51 TO 56. HIGHS 83 TO 90. WEST
WINDS 1 TO 5 MPH.
8-14 DAY OUTLOOK FOR FRIDAY JULY 25 THROUGH THURSDAY JULY 31
A GREATER CHANCE OF NEAR TO ABOVE NORMAL TEMPERATURES AND NEAR NORMAL
PRECIPITATION.
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