666
FNUS56 KPDT 161400
FWFPDT
FIRE WEATHER PLANNING FORECAST FOR NE OREGON AND SE WASHINGTON
NATIONAL WEATHER SERVICE PENDLETON OR
700 AM PDT TUE SEP 16 2025
DISCUSSION
HIGH PRESSURE BUILDING ALOFT AND A THERMAL TROUGH
WEST OF THE CASCADE CREST WILL RESULT IN EAST WINDS TODAY, WITH
LOCALLY BREEZY CONDITIONS THROUGH THE CASCADE GAPS. AFTERNOON RHS
WILL REMAIN IN THE UPPER 20S TO 30S ACROSS MUCH OF THE AREA,
EXCEPT ACROSS PORTIONS OF CENTRAL OR AND THE JOHN DAY BASIN WHERE
RHS WILL BE IN THE TEENS TO LOWER 20S. TEMPERATURES WILL CONTINUE
TO WARM THROUGH THE MIDWEEK.
***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.
WAZ695-162330-
EAST WASHINGTON SOUTH CENTRAL CASCADE MOUNTAINS-
700 AM PDT TUE SEP 16 2025
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....69-78...EXCEPT 62-69 RIDGES.
* MIN HUMIDITY........34-45 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...EAST WINDS 5 TO 11 MPH.
* RIDGES/UPR SLOPES....EAST WINDS 5 TO 11 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....EAST 15 TO 20 MPH.
* VENTILATION INDEX...POOR TO FAIR (28-206) INCREASING TO FAIR TO
GOOD (273-639) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........CLEAR.
* MIN TEMPERATURE.....49-55.
* MAX HUMIDITY........53-68 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHEAST WINDS 1 TO 6 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....SOUTHEAST WINDS 2 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHEAST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (39-187) DECREASING TO POOR (25-73)
AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........SUNNY.
* MAX TEMPERATURE.....76-84...EXCEPT 68-75 RIDGES.
* MIN HUMIDITY........28-38 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....SOUTHEAST WINDS 1 TO 5 MPH IN THE MORNING
BECOMING LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH.
* VENTILATION INDEX...POOR (25-63) INCREASING TO POOR TO FAIR
(131-257) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
MOSTLY CLEAR. LOWS 48 TO 55. HIGHS 68 TO 81. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 49 TO 56. HIGHS 69 TO 82. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 47 TO 53. HIGHS 59 TO 73. WEST
WINDS 2 TO 7 MPH.
SUNDAY
A CHANCE OF SHOWERS. MOSTLY CLOUDY. LOWS 46 TO 53.
HIGHS 54 TO 68. WEST WINDS 3 TO 8 MPH.
MONDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
41 TO 47. HIGHS 57 TO 69. WEST WINDS 2 TO 7 MPH.
WAZ690-162330-
KITTITAS VALLEY-
700 AM PDT TUE SEP 16 2025
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....75-81...EXCEPT 66-76 RIDGES.
* MIN HUMIDITY........33-39 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.......6500 FT AGL.
* TRANSPORT WINDS.....EAST AROUND 10 MPH.
* VENTILATION INDEX...POOR (61-133) INCREASING TO FAIR TO GOOD
(312-550) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....51-59.
* MAX HUMIDITY........56-71 PERCENT...EXCEPT 48-58 PERCENT RIDGES.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...EAST WINDS 1 TO 6 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....EAST 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.....EAST AROUND 5 MPH SHIFTING TO THE NORTH AFTER
MIDNIGHT.
* VENTILATION INDEX...POOR (37-121) DECREASING TO POOR (25-56)
AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........SUNNY.
* MAX TEMPERATURE.....81-86...EXCEPT 73-82 RIDGES.
* MIN HUMIDITY........27-32 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.......6000 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 5 MPH SHIFTING TO THE SOUTHEAST
IN THE AFTERNOON.
* VENTILATION INDEX...POOR (25-53) INCREASING TO POOR (105-195) IN
THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
MOSTLY CLEAR. LOWS 53 TO 60. HIGHS 80 TO 87.
NORTHWEST WINDS 1 TO 6 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 54 TO 62. HIGHS 80 TO 87. NORTHWEST
WINDS 1 TO 6 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 54 TO 60. HIGHS 75 TO 82. WEST
WINDS 5 TO 11 MPH.
SUNDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
52 TO 58. HIGHS 70 TO 77. WEST WINDS 5 TO 11 MPH.
MONDAY
MOSTLY CLEAR. LOWS 46 TO 52. HIGHS 68 TO 75. WEST WINDS
4 TO 9 MPH.
WAZ694-162330-
YAKAMA ALPINE DISTRICT-
700 AM PDT TUE SEP 16 2025
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....73-81...EXCEPT 64-74 RIDGES.
* MIN HUMIDITY........30-42 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.......6000 FT AGL.
* TRANSPORT WINDS.....EAST AROUND 10 MPH.
* VENTILATION INDEX...POOR (34-150) INCREASING TO FAIR (203-481) IN
THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....49-56.
* MAX HUMIDITY........53-68 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....EAST 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.....NORTHEAST AROUND 5 MPH.
* VENTILATION INDEX...POOR (30-106) DECREASING TO POOR (25-53)
AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........SUNNY.
* MAX TEMPERATURE.....79-85...EXCEPT 71-81 RIDGES.
* MIN HUMIDITY........26-35 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.......6000 FT AGL.
* TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH SHIFTING TO THE SOUTH
IN THE AFTERNOON.
* VENTILATION INDEX...POOR (25-40) INCREASING TO POOR (99-189) IN
THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
MOSTLY CLEAR. LOWS 49 TO 57. HIGHS 73 TO 84. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 50 TO 58. HIGHS 73 TO 84. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 47 TO 54. HIGHS 65 TO 78. WEST
WINDS 2 TO 7 MPH.
SUNDAY
A CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 47 TO 54.
HIGHS 61 TO 74. WEST WINDS 4 TO 9 MPH.
MONDAY
MOSTLY CLEAR. LOWS 42 TO 49. HIGHS 63 TO 75. WEST WINDS
2 TO 7 MPH.
ORZ691-WAZ691-162330-
LOWER COLUMBIA BASIN OF OREGON-LOWER COLUMBIA BASIN OF WASHINGTON-
700 AM PDT TUE SEP 16 2025
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....77-83...EXCEPT 73-78 RIDGES.
* MIN HUMIDITY........29-38 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHEAST WINDS 2 TO 7 MPH.
* RIDGES/UPR SLOPES....NORTHEAST WINDS 3 TO 8 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....EAST AROUND 10 MPH.
* VENTILATION INDEX...POOR (27-89) INCREASING TO POOR TO FAIR
(142-340) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....52-57.
* MAX HUMIDITY........62-77 PERCENT.
* HUMIDITY RECOVERY...GOOD...EXCEPT MODERATE RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHEAST WINDS 2 TO 7 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....NORTHEAST WINDS 2 TO 7 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.....EAST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (38-112) DECREASING TO POOR (25-44)
AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........SUNNY.
* MAX TEMPERATURE.....82-87.
* MIN HUMIDITY........25-33 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 1 TO 5 MPH IN THE MORNING
BECOMING LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......5000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH SHIFTING TO THE
NORTHEAST IN THE AFTERNOON.
* VENTILATION INDEX...POOR (25-38) INCREASING TO POOR (62-118) IN
THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
MOSTLY CLEAR. LOWS 53 TO 58. HIGHS 82 TO 87.
NORTHWEST WINDS 1 TO 5 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 55 TO 60. HIGHS 82 TO 87. WEST
WINDS 1 TO 6 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 54 TO 59. HIGHS 77 TO 84.
SOUTHWEST WINDS 5 TO 11 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 54 TO 59. HIGHS 74 TO 80. SOUTHWEST
WINDS 6 TO 12 MPH.
MONDAY
MOSTLY CLEAR. LOWS 49 TO 54. HIGHS 74 TO 79. SOUTHWEST
WINDS 4 TO 9 MPH.
ORZ692-WAZ692-162330-
NORTHERN BLUE MOUNTAINS OF OREGON-BLUE MOUNTAINS OF WASHINGTON-
700 AM PDT TUE SEP 16 2025
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....73-81...EXCEPT 67-72 RIDGES.
* MIN HUMIDITY........30-39 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHEAST WINDS 1 TO 5 MPH IN THE MORNING
BECOMING UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....EAST WINDS 2 TO 6 MPH IN THE MORNING
BECOMING LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH.
* VENTILATION INDEX...POOR (25-84) INCREASING TO POOR TO FAIR
(143-297) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....47-59.
* MAX HUMIDITY........54-69 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH BECOMING
SOUTHEAST 1 TO 6 MPH AFTER MIDNIGHT.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH BECOMING
SOUTHEAST 2 TO 6 MPH AFTER MIDNIGHT.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH.
* VENTILATION INDEX...POOR (34-100) DECREASING TO POOR (25-68)
AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........SUNNY.
* MAX TEMPERATURE.....78-85...EXCEPT 72-77 RIDGES.
* MIN HUMIDITY........24-33 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHEAST WINDS 1 TO 6 MPH IN THE MORNING
BECOMING UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....SOUTHEAST WINDS 2 TO 6 MPH IN THE MORNING
BECOMING LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* VENTILATION INDEX...POOR (25-69) INCREASING TO POOR TO FAIR
(108-258) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
CLEAR. LOWS 49 TO 59. HIGHS 76 TO 85. TERRAIN DRIVEN
WINDS LESS THAN 5 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 51 TO 61. HIGHS 75 TO 84. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 52 TO 59. HIGHS 69 TO 79.
SOUTHWEST WINDS 2 TO 7 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 49 TO 57. HIGHS 63 TO 74. SOUTHWEST
WINDS 3 TO 8 MPH.
MONDAY
MOSTLY CLEAR. LOWS 45 TO 51. HIGHS 65 TO 76. SOUTHWEST
WINDS 2 TO 7 MPH.
ORZ693-WAZ693-162330-
CANYON GRASSLANDS OF WALLOWA COUNTY-
SOUTHEAST WASHINGTON GRANDE RONDE VALLEY-
700 AM PDT TUE SEP 16 2025
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....73-81...EXCEPT 67-73 RIDGES.
* MIN HUMIDITY........31-37 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.......8500 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH.
* VENTILATION INDEX...POOR (25-55) INCREASING TO POOR TO FAIR
(103-241) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....46-56.
* MAX HUMIDITY........60-75 PERCENT...EXCEPT 53-61 PERCENT RIDGES.
* 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 BECOMING SOUTH 2
TO 5 MPH AFTER MIDNIGHT.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH.
* VENTILATION INDEX...POOR (28-84) DECREASING TO POOR (25-64) AFTER
MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....77-86...EXCEPT 71-78 RIDGES.
* MIN HUMIDITY........25-31 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....SOUTH WINDS 2 TO 5 MPH IN THE MORNING
BECOMING LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 5 MPH.
* VENTILATION INDEX...POOR (25-65) INCREASING TO POOR (86-198) IN
THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
CLEAR. LOWS 48 TO 58. HIGHS 79 TO 87. TERRAIN DRIVEN
WINDS LESS THAN 5 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 49 TO 60. HIGHS 78 TO 87. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 49 TO 59. HIGHS 71 TO 81. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 46 TO 56. HIGHS 66 TO 76. WEST
WINDS 2 TO 7 MPH.
MONDAY
MOSTLY CLEAR. LOWS 42 TO 52. HIGHS 69 TO 78. SOUTHWEST
WINDS 2 TO 7 MPH.
ORZ701-162330-
EASTERN COLUMBIA RIVER GORGE OF OREGON-
700 AM PDT TUE SEP 16 2025
TODAY
* SKY/WEATHER.........SUNNY.
* MAX TEMPERATURE.....78-83.
* MIN HUMIDITY........30-37 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...EAST WINDS 3 TO 8 MPH...EXCEPT EAST 5 TO 11
MPH IN THE EASTERN COLUMBIA RIVER GORGE.
* RIDGES/UPR SLOPES....EAST WINDS 3 TO 8 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....EAST 10 TO 15 MPH.
* VENTILATION INDEX...POOR (44-170) INCREASING TO FAIR TO GOOD
(325-597) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....51-56.
* MAX HUMIDITY........59-74 PERCENT...EXCEPT 55-63 PERCENT RIDGES.
* HUMIDITY RECOVERY...GOOD...EXCEPT MODERATE RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...EAST WINDS 1 TO 6 MPH IN THE EVENING.
DRAINAGE WINDS LESS THAN 5 MPH AFTER MIDNIGHT. IN THE EASTERN
COLUMBIA RIVER GORGE, EAST WINDS 2 TO 7 MPH IN THE EVENING.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....EAST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (89-175) DECREASING TO POOR (25-56)
AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........SUNNY.
* MAX TEMPERATURE.....83-88...EXCEPT 78-84 RIDGES.
* MIN HUMIDITY........29-42 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.......4500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 5 MPH.
* VENTILATION INDEX...POOR (25-35) INCREASING TO POOR (77-133) IN
THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
MOSTLY CLEAR. LOWS 51 TO 56. HIGHS 79 TO 84. WEST
WINDS 1 TO 5 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 53 TO 58. HIGHS 80 TO 85. WEST
WINDS 1 TO 5 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 50 TO 55. HIGHS 73 TO 79. WEST
WINDS 4 TO 9 MPH.
SUNDAY
A SLIGHT CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 52 TO
57. HIGHS 71 TO 76. WEST WINDS 4 TO 9 MPH.
MONDAY
MOSTLY CLEAR. LOWS 48 TO 53. HIGHS 74 TO 79. WEST WINDS
3 TO 8 MPH.
ORZ702-162330-
EAST SLOPES OF THE MT. HOOD NATIONAL FOREST-
700 AM PDT TUE SEP 16 2025
TODAY
* SKY/WEATHER.........SUNNY.
* MAX TEMPERATURE.....74-80...EXCEPT 68-76 RIDGES.
* MIN HUMIDITY........31-38 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...EAST WINDS 2 TO 7 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING EAST 1 TO 5
MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......4500 FT AGL.
* TRANSPORT WINDS.....EAST AROUND 15 MPH.
* VENTILATION INDEX...POOR (25-134) INCREASING TO POOR TO FAIR
(184-398) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....51-57.
* MAX HUMIDITY........49-64 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.....EAST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (38-124) DECREASING TO POOR (25-49)
AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........SUNNY.
* MAX TEMPERATURE.....79-85...EXCEPT 73-81 RIDGES.
* MIN HUMIDITY........29-37 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.......4500 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 5 MPH.
* VENTILATION INDEX...POOR (25-33) INCREASING TO POOR (53-127) IN
THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
MOSTLY CLEAR. LOWS 49 TO 56. HIGHS 71 TO 83. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 51 TO 57. HIGHS 71 TO 84. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 47 TO 54. HIGHS 64 TO 78. WEST
WINDS 1 TO 5 MPH.
SUNDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
48 TO 55. HIGHS 61 TO 75. WEST WINDS 1 TO 5 MPH.
MONDAY
PARTLY CLOUDY. LOWS 45 TO 51. HIGHS 65 TO 77. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
ORZ695-162330-
EAGLE CAP WILDERNESS-
700 AM PDT TUE SEP 16 2025
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....68-78...EXCEPT 58-68 RIDGES.
* MIN HUMIDITY........30-41 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING SOUTHEAST 2
TO 5 MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH.
* VENTILATION INDEX...POOR (25-62) INCREASING TO POOR TO FAIR
(144-296) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....49-55...EXCEPT 44-51 RIDGES.
* MAX HUMIDITY........51-65 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 BECOMING
SOUTHEAST 2 TO 5 MPH AFTER MIDNIGHT.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH.
* VENTILATION INDEX...POOR (25-69).
WEDNESDAY
* SKY/WEATHER.........SUNNY.
* MAX TEMPERATURE.....73-82...EXCEPT 62-72 RIDGES.
* MIN HUMIDITY........26-37 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....SOUTH WINDS 2 TO 5 MPH IN THE MORNING
BECOMING LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 5 MPH.
* VENTILATION INDEX...POOR (25-63) INCREASING TO POOR TO FAIR
(118-254) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
CLEAR. LOWS 47 TO 55. HIGHS 67 TO 82. TERRAIN DRIVEN
WINDS LESS THAN 5 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 49 TO 57. HIGHS 68 TO 82. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 47 TO 56. HIGHS 61 TO 76. WEST
WINDS 1 TO 5 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 43 TO 52. HIGHS 57 TO 71. WEST
WINDS 2 TO 7 MPH.
MONDAY
MOSTLY CLEAR. LOWS 40 TO 49. HIGHS 59 TO 73. SOUTHWEST
WINDS 1 TO 6 MPH.
ORZ694-162330-
GRANDE RONDE VALLEY OF OREGON-
700 AM PDT TUE SEP 16 2025
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....76-81.
* MIN HUMIDITY........26-31 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING SOUTH 2 TO
6 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING SOUTH 4 TO 7
MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (27-55) INCREASING TO FAIR (308-436) IN
THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....43-49.
* MAX HUMIDITY........68-83 PERCENT...EXCEPT 66-72 PERCENT RIDGES.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH BECOMING SOUTH 2
TO 5 MPH AFTER MIDNIGHT.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH.
* VENTILATION INDEX...POOR (67-109) DECREASING TO POOR (34-68)
AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....81-86.
* MIN HUMIDITY........21-26 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING SOUTH 2 TO
6 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTH WINDS 3 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 10 MPH.
* VENTILATION INDEX...POOR (39-81) INCREASING TO FAIR (343-465) IN
THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
CLEAR. LOWS 45 TO 50. HIGHS 83 TO 88. SOUTHEAST WINDS
1 TO 5 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 49 TO 54. HIGHS 83 TO 88. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 49 TO 54. HIGHS 77 TO 82. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 46 TO 51. HIGHS 73 TO 78. WEST
WINDS 2 TO 6 MPH.
MONDAY
MOSTLY CLEAR. LOWS 43 TO 48. HIGHS 75 TO 80. SOUTH
WINDS 2 TO 7 MPH.
ORZ699-162330-
WESTERN FORESTED BLUE MOUNTAINS-
700 AM PDT TUE SEP 16 2025
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....73-79...EXCEPT 66-73 RIDGES.
* MIN HUMIDITY........25-34 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.......7000 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH.
* VENTILATION INDEX...POOR (25-70) INCREASING TO FAIR (255-403) IN
THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....45-53.
* MAX HUMIDITY........47-61 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH BECOMING
SOUTHEAST 1 TO 5 MPH AFTER MIDNIGHT.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH BECOMING
SOUTHEAST 1 TO 6 MPH AFTER MIDNIGHT.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH.
* VENTILATION INDEX...POOR (49-125) DECREASING TO POOR (25-66)
AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........SUNNY.
* MAX TEMPERATURE.....78-84...EXCEPT 71-78 RIDGES.
* MIN HUMIDITY........20-26 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....SOUTHEAST WINDS 1 TO 6 MPH IN THE MORNING
BECOMING LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 5 MPH.
* VENTILATION INDEX...POOR (25-60) INCREASING TO POOR TO FAIR
(120-240) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
CLEAR. LOWS 47 TO 54. HIGHS 74 TO 84. TERRAIN DRIVEN
WINDS LESS THAN 5 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 49 TO 56. HIGHS 73 TO 82. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 49 TO 55. HIGHS 68 TO 76. WEST
WINDS 1 TO 5 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 46 TO 52. HIGHS 64 TO 73. WEST
WINDS 1 TO 6 MPH.
MONDAY
MOSTLY CLEAR. LOWS 42 TO 49. HIGHS 66 TO 75. SOUTHWEST
WINDS 1 TO 6 MPH.
ORZ696-162330-
JOHN DAY VALLEY-
700 AM PDT TUE SEP 16 2025
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....76-84...EXCEPT 71-76 RIDGES.
* MIN HUMIDITY........21-26 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....SOUTHEAST WINDS 2 TO 5 MPH IN THE MORNING
BECOMING LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH.
* VENTILATION INDEX...POOR (28-86) INCREASING TO FAIR (334-488) IN
THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....47-53.
* MAX HUMIDITY........47-61 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH BECOMING
SOUTHEAST 2 TO 6 MPH AFTER MIDNIGHT.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH BECOMING
SOUTHEAST 3 TO 7 MPH AFTER MIDNIGHT.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH.
* VENTILATION INDEX...POOR (86-168) DECREASING TO POOR (25-87)
AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........SUNNY.
* MAX TEMPERATURE.....80-88...EXCEPT 76-81 RIDGES.
* MIN HUMIDITY........17-22 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHEAST WINDS 2 TO 5 MPH IN THE MORNING
BECOMING UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....SOUTHEAST WINDS 3 TO 6 MPH IN THE MORNING
BECOMING LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH.
* VENTILATION INDEX...POOR (25-81) INCREASING TO POOR TO FAIR
(114-234) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
CLEAR. LOWS 49 TO 55. HIGHS 80 TO 88. TERRAIN DRIVEN
WINDS LESS THAN 5 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 52 TO 57. HIGHS 78 TO 86. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 52 TO 57. HIGHS 73 TO 81. WEST
WINDS 1 TO 5 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 49 TO 54. HIGHS 70 TO 79. WEST
WINDS 1 TO 6 MPH.
MONDAY
MOSTLY CLEAR. LOWS 46 TO 51. HIGHS 72 TO 80. SOUTHWEST
WINDS 2 TO 7 MPH.
ORZ700-162330-
CENTRAL MOUNTAINS OF OREGON-
700 AM PDT TUE SEP 16 2025
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....76-82...EXCEPT 71-76 RIDGES.
* MIN HUMIDITY........17-24 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHEAST WINDS 3 TO 8 MPH.
* RIDGES/UPR SLOPES....SOUTHEAST WINDS 3 TO 8 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH.
* VENTILATION INDEX...POOR (27-99) INCREASING TO FAIR TO GOOD
(318-570) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....41-52.
* MAX HUMIDITY........55-70 PERCENT...EXCEPT 44-54 PERCENT RIDGES.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...EAST WINDS 1 TO 5 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....SOUTHEAST 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.....SOUTHEAST AROUND 10 MPH.
* VENTILATION INDEX...POOR (88-182) DECREASING TO POOR (25-62)
AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....81-86...EXCEPT 74-80 RIDGES.
* MIN HUMIDITY........17-26 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.......7000 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH.
* VENTILATION INDEX...POOR (25-57) INCREASING TO POOR TO FAIR
(100-250) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
MOSTLY CLEAR. LOWS 43 TO 53. HIGHS 79 TO 85. EAST
WINDS 1 TO 6 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 46 TO 54. HIGHS 78 TO 83. NORTHWEST
WINDS 2 TO 7 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 44 TO 53. HIGHS 73 TO 79. WEST
WINDS 2 TO 7 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 42 TO 52. HIGHS 71 TO 77. WEST
WINDS 2 TO 7 MPH.
MONDAY
MOSTLY CLEAR. LOWS 41 TO 49. HIGHS 74 TO 80. SOUTHWEST
WINDS 2 TO 7 MPH.
ORZ703-162330-
WARM SPRINGS RESERVATION-
700 AM PDT TUE SEP 16 2025
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....76-83...EXCEPT 67-74 RIDGES.
* MIN HUMIDITY........25-32 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING EAST 2 TO 5
MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHEAST WINDS 3 TO 8 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....EAST AROUND 10 MPH.
* VENTILATION INDEX...POOR (25-69) INCREASING TO FAIR (208-338) IN
THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....50-55.
* MAX HUMIDITY........56-69 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTH WINDS 1 TO 5 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....NORTHEAST 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.....NORTH 5 TO 10 MPH.
* VENTILATION INDEX...POOR (61-137) DECREASING TO POOR (25-38)
AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........SUNNY.
* MAX TEMPERATURE.....80-86...EXCEPT 71-78 RIDGES.
* MIN HUMIDITY........25-32 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.......5000 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH.
* VENTILATION INDEX...POOR (25-31) INCREASING TO POOR (75-125) IN
THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
MOSTLY CLEAR. LOWS 50 TO 55. HIGHS 76 TO 85.
NORTHWEST WINDS 1 TO 5 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 52 TO 57. HIGHS 77 TO 85. NORTHWEST
WINDS 1 TO 6 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 50 TO 55. HIGHS 70 TO 81. WEST
WINDS 2 TO 7 MPH.
SUNDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
51 TO 56. HIGHS 67 TO 79. WEST WINDS 3 TO 8 MPH.
MONDAY
MOSTLY CLEAR. LOWS 48 TO 53. HIGHS 72 TO 80. SOUTHWEST
WINDS 2 TO 7 MPH.
ORZ704-162330-
NORTHERN DESCHUTES NATIONAL FOREST-
700 AM PDT TUE SEP 16 2025
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....77-83...EXCEPT 68-74 RIDGES.
* MIN HUMIDITY........23-30 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING EAST 2 TO 6
MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....EAST WINDS 5 TO 11 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH.
* VENTILATION INDEX...POOR (25-76) INCREASING TO FAIR (220-354) IN
THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....43-51.
* MAX HUMIDITY........62-73 PERCENT...EXCEPT 46-61 PERCENT RIDGES.
* HUMIDITY RECOVERY...GOOD...EXCEPT MODERATE RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....NORTHEAST 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.....NORTHEAST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (47-117) DECREASING TO POOR (25-33)
AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........SUNNY.
* MAX TEMPERATURE.....80-86...EXCEPT 69-77 RIDGES.
* MIN HUMIDITY........25-36 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.......5500 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 5 MPH SHIFTING TO THE NORTHEAST
IN THE AFTERNOON.
* VENTILATION INDEX...POOR (25-29) INCREASING TO POOR (74-140) IN
THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
MOSTLY CLEAR. LOWS 44 TO 51. HIGHS 71 TO 84. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 46 TO 53. HIGHS 71 TO 83. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 44 TO 50. HIGHS 65 TO 78. WEST
WINDS 2 TO 7 MPH.
SUNDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
44 TO 50. HIGHS 62 TO 75. WEST WINDS 3 TO 8 MPH.
MONDAY
MOSTLY CLEAR. LOWS 42 TO 48. HIGHS 67 TO 79. SOUTHWEST
WINDS 2 TO 7 MPH.
ORZ705-162330-
SOUTHERN DESCHUTES NATIONAL FOREST-
700 AM PDT TUE SEP 16 2025
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....76-81...EXCEPT 68-75 RIDGES.
* MIN HUMIDITY........18-24 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHEAST WINDS 2 TO 7 MPH.
* RIDGES/UPR SLOPES....SOUTHEAST WINDS 2 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH.
* VENTILATION INDEX...POOR (30-80) INCREASING TO FAIR (295-425) IN
THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....40-47...EXCEPT 46-52 RIDGES.
* MAX HUMIDITY........55-70 PERCENT...EXCEPT 41-55 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 BECOMING
SOUTHEAST 1 TO 5 MPH AFTER MIDNIGHT.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....EAST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (64-148) DECREASING TO POOR (25-43)
AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....79-84...EXCEPT 70-78 RIDGES.
* MIN HUMIDITY........18-29 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.......8000 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 5 MPH.
* VENTILATION INDEX...POOR (25-32) INCREASING TO POOR TO FAIR
(142-236) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
MOSTLY CLEAR. LOWS 39 TO 48. HIGHS 74 TO 83. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 43 TO 51. HIGHS 72 TO 80. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 41 TO 48. HIGHS 66 TO 76. WEST
WINDS 1 TO 5 MPH.
SUNDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
39 TO 46. HIGHS 65 TO 74. WEST WINDS 1 TO 5 MPH.
MONDAY
MOSTLY CLEAR. LOWS 38 TO 45. HIGHS 69 TO 78. SOUTHWEST
WINDS 1 TO 5 MPH.
ORZ697-162330-
CENTRAL BLUE MOUNTAINS-
700 AM PDT TUE SEP 16 2025
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....70-76...EXCEPT 65-72 RIDGES.
* MIN HUMIDITY........23-31 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHEAST WINDS 2 TO 7 MPH.
* RIDGES/UPR SLOPES....SOUTHEAST WINDS 2 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH.
* VENTILATION INDEX...POOR (25-85) INCREASING TO FAIR (272-458) IN
THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....40-48.
* MAX HUMIDITY........53-68 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 BECOMING
SOUTHEAST 1 TO 6 MPH AFTER MIDNIGHT.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH.
* VENTILATION INDEX...POOR (54-142) DECREASING TO POOR (25-58)
AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........SUNNY.
* MAX TEMPERATURE.....75-82...EXCEPT 70-77 RIDGES.
* MIN HUMIDITY........19-25 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....SOUTHEAST WINDS 1 TO 6 MPH IN THE MORNING
BECOMING LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH.
* VENTILATION INDEX...POOR (25-55) INCREASING TO POOR TO FAIR
(159-285) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
MOSTLY CLEAR. LOWS 43 TO 50. HIGHS 74 TO 81. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 46 TO 54. HIGHS 73 TO 80. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 45 TO 52. HIGHS 68 TO 75. WEST
WINDS 1 TO 5 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 42 TO 49. HIGHS 65 TO 72. WEST
WINDS 1 TO 6 MPH.
MONDAY
MOSTLY CLEAR. LOWS 40 TO 46. HIGHS 68 TO 75. SOUTHWEST
WINDS 1 TO 6 MPH.
ORZ698-162330-
SOUTHERN BLUE MOUNTAINS-
700 AM PDT TUE SEP 16 2025
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....71-77.
* MIN HUMIDITY........19-26 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHEAST WINDS 2 TO 7 MPH.
* RIDGES/UPR SLOPES....SOUTHEAST WINDS 2 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH.
* VENTILATION INDEX...POOR (41-97) INCREASING TO FAIR (351-485) IN
THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....37-46...EXCEPT 42-47 RIDGES.
* MAX HUMIDITY........55-70 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.....EAST AROUND 10 MPH.
* VENTILATION INDEX...POOR (102-174) DECREASING TO POOR (25-59)
AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....76-82.
* MIN HUMIDITY........16-21 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.......6500 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH.
* VENTILATION INDEX...POOR (25-47) INCREASING TO POOR TO FAIR
(189-261) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
MOSTLY CLEAR. LOWS 43 TO 48. HIGHS 78 TO 84. EAST
WINDS 2 TO 7 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 46 TO 52. HIGHS 76 TO 82. NORTHEAST
WINDS 1 TO 6 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 46 TO 51. HIGHS 72 TO 79. WEST
WINDS 2 TO 7 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 42 TO 48. HIGHS 70 TO 76. WEST
WINDS 2 TO 7 MPH.
MONDAY
MOSTLY CLEAR. LOWS 40 TO 45. HIGHS 72 TO 78. SOUTHWEST
WINDS 2 TO 7 MPH.
.8-14 DAY OUTLOOK FOR TUESDAY SEPTEMBER 23 THROUGH MONDAY SEPTEMBER 29...
A GREATER CHANCE OF NEAR NORMAL TEMPERATURES AND ABOVE NORMAL
PRECIPITATION.
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