442
FNUS56 KPDT 131223
FWFPDT
FIRE WEATHER PLANNING FORECAST FOR NE OREGON AND SE WASHINGTON
NATIONAL WEATHER SERVICE PENDLETON OR
523 AM PDT THU AUG 13 2026
...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 5 AM
PDT FRIDAY FOR ABUNDANT LIGHTNING FOR FIRE WEATHER ZONES OR696,
OR697, OR698, AND OR699...
...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 9 PM
PDT THIS EVENING FOR ABUNDANT LIGHTNING FOR FIRE WEATHER ZONES
OR700 AND OR705...
DISCUSSION
RED FLAG WARNINGS ARE IN EFFECT TODAY FOR ABUNDANT
LIGHTNING ACROSS MUCH OF CENTRAL AND EASTERN OREGON. ELSEWHERE,
LIGHTNING IS FORECAST ACROSS THE WASHINGTON CASCADES, BUT SLOWER
STORM MOTIONS WILL YIELD BETTER CHANCES OF WETTING RAIN UNDER
HEAVIER CORES. SHOWERS AND THUNDERSTORMS ARE FORECAST TO
CONTINUE OVERNIGHT INTO FRIDAY MORNING (HIGHEST CHANCES ACROSS
THE BLUE MOUNTAINS), FOLLOWED BY ANOTHER ROUND OF SHOWERS AND
THUNDERSTORMS FOR THE CASCADE AND BLUE MOUNTAINS FRIDAY AFTERNOON.
***THUNDERSTORMS IMPLY STRONG GUSTY WINDS ***
***WINDS ARE 20 FOOT 10 MINUTE AVERAGES ***
***CWR: CHANCE OF WETTING RAIN 0.10 OR GREATER ***
***VENTILATION INDEX IS DERIVED FROM TRANSPORT WIND
MULTIPLIED BY THE MIXING HEIGHT IN 100'S OF FT.
CATEGORIES ARE A GENERALIZED INDICATOR AND USERS
ARE ENCOURAGE TO DEVELOP CRITERIA THAT ARE
SUITABLE AND REPRESENTATIVE OF DISPERSION
CONDITIONS IN THEIR LOCAL AREA OF INTEREST.
CATEGORIES: LOW (< 200), MODERATE (200-500),
HIGH (500-700), AND VERY HIGH (> 700).
-NOTE: MAX TRANSPORT WINDS MAY NOT OCCUR
AT THE SAME TIME AS MAX MIXING HEIGHT. ***
WAZ695-132330-
EAST WASHINGTON SOUTH CENTRAL CASCADE MOUNTAINS-
523 AM PDT THU AUG 13 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY. AREAS OF SMOKE. A CHANCE OF
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....72-80...EXCEPT 63-72 RIDGES.
* MIN HUMIDITY........38-53 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH.
* VENTILATION INDEX...LOW (36-72) INCREASING TO LOW TO MODERATE
(78-290) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. A CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. AREAS OF SMOKE.
* MIN TEMPERATURE.....51-56.
* MAX HUMIDITY........72-87 PERCENT.
* HUMIDITY RECOVERY...GOOD...EXCEPT EXCELLENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS UP TO 5 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
* VENTILATION INDEX...LOW (56-156) DECREASING TO LOW (25-33) AFTER
MIDNIGHT.
FRIDAY
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
PATCHY SMOKE IN THE MORNING. A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....71-79...EXCEPT 62-71 RIDGES.
* MIN HUMIDITY........43-58 PERCENT...EXCEPT 54-66 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................30 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
* VENTILATION INDEX...LOW (47-77) INCREASING TO LOW TO MODERATE
(145-335) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 50 TO 55. HIGHS 68 TO 82. WEST
WINDS UP TO 5 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 51 TO 57. HIGHS 69 TO 83. WEST
WINDS UP TO 5 MPH.
MONDAY
PARTLY CLOUDY. LOWS 51 TO 57. HIGHS 69 TO 83. WEST
WINDS 2 TO 7 MPH.
TUESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
50 TO 57. HIGHS 66 TO 79. WEST WINDS 2 TO 7 MPH.
WEDNESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
48 TO 55. HIGHS 63 TO 77. WEST WINDS 2 TO 7 MPH.
WAZ690-132330-
KITTITAS VALLEY-
523 AM PDT THU AUG 13 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
AREAS OF SMOKE.
* MAX TEMPERATURE.....79-85...EXCEPT 68-79 RIDGES.
* MIN HUMIDITY........30-38 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 5 MPH.
* VENTILATION INDEX...LOW (64-110) INCREASING TO MODERATE (291-475)
IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN
THE EVENING. AREAS OF SMOKE.
* MIN TEMPERATURE.....57-63.
* MAX HUMIDITY........61-76 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 1 TO 6 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 10 MPH.
* VENTILATION INDEX...MODERATE (215-289) DECREASING TO LOW (34-46)
AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE IN THE MORNING. A
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....78-85...EXCEPT 68-79 RIDGES.
* MIN HUMIDITY........33-43 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....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......9500 FT AGL.
* TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
* VENTILATION INDEX...LOW (65-117) INCREASING TO LOW TO MODERATE
(130-352) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS 56 TO 62. HIGHS 81 TO 88.
NORTHWEST WINDS UP TO 5 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 57 TO 64. HIGHS 83 TO 90. NORTHWEST
WINDS 2 TO 7 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 58 TO 64. HIGHS 83 TO 90. NORTHWEST
WINDS 3 TO 8 MPH.
TUESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
57 TO 63. HIGHS 80 TO 87. NORTHWEST WINDS 4 TO 9 MPH.
WEDNESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
55 TO 61. HIGHS 77 TO 85. WEST WINDS 3 TO 8 MPH.
WAZ694-132330-
YAKAMA ALPINE DISTRICT-
523 AM PDT THU AUG 13 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
AREAS OF SMOKE. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON.
* MAX TEMPERATURE.....77-84...EXCEPT 65-78 RIDGES.
* MIN HUMIDITY........30-41 PERCENT...EXCEPT 37-52 PERCENT RIDGES.
* 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....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH.
* VENTILATION INDEX...LOW (44-86) INCREASING TO LOW TO MODERATE
(173-337) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN
THE EVENING. AREAS OF SMOKE IN THE EVENING, THEN PATCHY SMOKE
AFTER MIDNIGHT.
* MIN TEMPERATURE.....50-58.
* MAX HUMIDITY........63-78 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 5 MPH.
* VENTILATION INDEX...LOW (86-150) DECREASING TO LOW (26-34) AFTER
MIDNIGHT.
FRIDAY
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE IN THE MORNING. A
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....77-84...EXCEPT 65-79 RIDGES.
* MIN HUMIDITY........32-42 PERCENT...EXCEPT 40-55 PERCENT RIDGES.
* 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....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH SHIFTING TO THE SOUTH
IN THE AFTERNOON.
* VENTILATION INDEX...LOW (45-75) INCREASING TO MODERATE (359-463)
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS 49 TO 58. HIGHS 73 TO 86. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 49 TO 59. HIGHS 74 TO 88. WEST
WINDS 1 TO 5 MPH.
MONDAY
PARTLY CLOUDY. LOWS 49 TO 59. HIGHS 74 TO 88. WEST
WINDS 2 TO 7 MPH.
TUESDAY
A SLIGHT CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 48 TO
58. HIGHS 71 TO 84. WEST WINDS 2 TO 7 MPH.
WEDNESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
47 TO 55. HIGHS 68 TO 82. WEST WINDS 2 TO 7 MPH.
ORZ691-WAZ691-132330-
LOWER COLUMBIA BASIN OF OREGON-LOWER COLUMBIA BASIN OF WASHINGTON-
523 AM PDT THU AUG 13 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. AREAS OF SMOKE IN THE MORNING,
THEN PATCHY SMOKE IN THE AFTERNOON.
* MAX TEMPERATURE.....82-88...EXCEPT 77-84 RIDGES.
* MIN HUMIDITY........27-35 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTH WINDS 2 TO 7 MPH.
* RIDGES/UPR SLOPES....NORTH WINDS 2 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 5 MPH.
* VENTILATION INDEX...LOW (44-104) INCREASING TO MODERATE (322-478)
IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. PATCHY SMOKE.
* MIN TEMPERATURE.....57-62.
* MAX HUMIDITY........59-73 PERCENT.
* HUMIDITY RECOVERY...GOOD...EXCEPT MODERATE RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 1 TO 6 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 1 TO 6 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 10 MPH.
* VENTILATION INDEX...LOW TO MODERATE (185-293) DECREASING TO LOW
(25-41) AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY SUNNY. PATCHY SMOKE IN THE MORNING.
* MAX TEMPERATURE.....83-90...EXCEPT 78-85 RIDGES.
* MIN HUMIDITY........26-33 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING NORTH 2 TO
6 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTH WINDS 2 TO 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......10500 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 5 MPH.
* VENTILATION INDEX...LOW (34-100) INCREASING TO MODERATE (259-451)
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS 57 TO 62. HIGHS 84 TO 91.
NORTHWEST WINDS 1 TO 6 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 58 TO 63. HIGHS 86 TO 93. WEST
WINDS 2 TO 7 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 59 TO 64. HIGHS 85 TO 92. WEST
WINDS 2 TO 7 MPH.
TUESDAY
A SLIGHT CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 58 TO
63. HIGHS 82 TO 89. WEST WINDS 4 TO 9 MPH.
WEDNESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
55 TO 60. HIGHS 79 TO 86. SOUTHWEST WINDS 4 TO 10 MPH.
ORZ692-WAZ692-132330-
NORTHERN BLUE MOUNTAINS OF OREGON-BLUE MOUNTAINS OF WASHINGTON-
523 AM PDT THU AUG 13 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. AREAS OF SMOKE.
* MAX TEMPERATURE.....75-83...EXCEPT 68-74 RIDGES.
* MIN HUMIDITY........32-44 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING NORTHWEST 2
TO 5 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING NORTHWEST 2
TO 5 MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (60-90) INCREASING TO MODERATE (292-438)
IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE.
* MIN TEMPERATURE.....51-59.
* MAX HUMIDITY........65-80 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
* VENTILATION INDEX...LOW (135-191) DECREASING TO LOW (25-26) AFTER
MIDNIGHT.
FRIDAY
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE IN THE MORNING. A
SLIGHT CHANCE OF SHOWERS IN THE MORNING.
* MAX TEMPERATURE.....76-85...EXCEPT 70-75 RIDGES.
* MIN HUMIDITY........31-42 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....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......9500 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (40-84) INCREASING TO MODERATE TO HIGH
(451-581) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 51 TO 59. HIGHS 76 TO 86. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
SUNDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 51 TO 60. HIGHS 78 TO 88. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 53 TO 62. HIGHS 77 TO 86. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
A SLIGHT CHANCE OF SHOWERS. MOSTLY CLOUDY. LOWS 52 TO
61. HIGHS 73 TO 83. WEST WINDS UP TO 5 MPH.
WEDNESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
48 TO 58. HIGHS 71 TO 81. WEST WINDS UP TO 5 MPH.
ORZ693-WAZ693-132330-
CANYON GRASSLANDS OF WALLOWA COUNTY-
SOUTHEAST WASHINGTON GRANDE RONDE VALLEY-
523 AM PDT THU AUG 13 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
PATCHY SMOKE.
* MAX TEMPERATURE.....77-86...EXCEPT 71-78 RIDGES.
* MIN HUMIDITY........26-33 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 1 TO 6 MPH.
* RIDGES/UPR SLOPES....NORTH WINDS 1 TO 6 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (44-68) INCREASING TO MODERATE TO HIGH
(451-569) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
PATCHY SMOKE. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
EVENING. A CHANCE OF SHOWERS AFTER MIDNIGHT.
* MIN TEMPERATURE.....49-59.
* MAX HUMIDITY........69-84 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 2 TO 6 MPH IN THE EVENING
BECOMING LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 10 MPH SHIFTING TO THE SOUTHWEST
AFTER MIDNIGHT.
* VENTILATION INDEX...LOW TO MODERATE (137-211) DECREASING TO LOW
(25) AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE IN THE MORNING. A
CHANCE OF SHOWERS. A CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....75-84...EXCEPT 69-75 RIDGES.
* MIN HUMIDITY........34-41 PERCENT...EXCEPT 38-53 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....40 PERCENT (CHANCE).
* MIXING HEIGHT.......9500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (37-61) INCREASING TO MODERATE TO HIGH
(310-530) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 47 TO 59. HIGHS 78 TO 87. TERRAIN DRIVEN
WINDS LESS THAN 5 MPH.
SUNDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 47 TO 59. HIGHS 81 TO 90. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 49 TO 61. HIGHS 79 TO 89. TERRAIN DRIVEN
WINDS LESS THAN 5 MPH.
TUESDAY
A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. MOSTLY
CLOUDY. LOWS 49 TO 61. HIGHS 76 TO 86. TERRAIN DRIVEN WINDS LESS
THAN 5 MPH.
WEDNESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
46 TO 58. HIGHS 73 TO 83. WEST WINDS 1 TO 6 MPH.
ORZ701-132330-
EASTERN COLUMBIA RIVER GORGE OF OREGON-
523 AM PDT THU AUG 13 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. PATCHY SMOKE IN THE MORNING,
THEN AREAS OF SMOKE IN THE AFTERNOON.
* MAX TEMPERATURE.....82-87.
* MIN HUMIDITY........31-40 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH. IN THE EASTERN
COLUMBIA RIVER GORGE, WEST WINDS 1 TO 5 MPH IN THE MORNING
BECOMING 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.....NORTHWEST AROUND 5 MPH SHIFTING TO THE EAST
IN THE AFTERNOON.
* VENTILATION INDEX...LOW (25-52) INCREASING TO MODERATE (227-339)
IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. AREAS OF SMOKE.
* MIN TEMPERATURE.....54-61.
* MAX HUMIDITY........69-84 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
* VENTILATION INDEX...LOW TO MODERATE (178-264) DECREASING TO LOW
(28-40) AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE IN THE MORNING. A
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....82-87.
* MIN HUMIDITY........33-45 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....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH SHIFTING TO THE SOUTH
IN THE AFTERNOON.
* VENTILATION INDEX...LOW (32-56) INCREASING TO LOW TO MODERATE
(158-284) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS 53 TO 60. HIGHS 83 TO 88. WEST
WINDS 1 TO 6 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 53 TO 60. HIGHS 84 TO 89. WEST
WINDS 1 TO 6 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 54 TO 61. HIGHS 84 TO 89. WEST
WINDS 3 TO 8 MPH.
TUESDAY
A SLIGHT CHANCE OF SHOWERS. MOSTLY CLOUDY. LOWS 53 TO
60. HIGHS 80 TO 85. WEST WINDS 4 TO 9 MPH.
WEDNESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
51 TO 58. HIGHS 78 TO 83. WEST WINDS 4 TO 9 MPH.
ORZ702-132330-
EAST SLOPES OF THE MT. HOOD NATIONAL FOREST-
523 AM PDT THU AUG 13 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. AREAS OF SMOKE.
* MAX TEMPERATURE.....77-83...EXCEPT 71-80 RIDGES.
* MIN HUMIDITY........34-47 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....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....EAST AROUND 5 MPH.
* VENTILATION INDEX...LOW (28-54) INCREASING TO MODERATE (283-361)
IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. SMOKY IN THE EVENING, THEN
AREAS OF SMOKE AFTER MIDNIGHT.
* MIN TEMPERATURE.....51-59.
* MAX HUMIDITY........66-81 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
* VENTILATION INDEX...LOW TO MODERATE (129-219) DECREASING TO LOW
(29-35) AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER.........PARTLY CLOUDY. AREAS OF SMOKE IN THE MORNING.
A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....78-84...EXCEPT 71-80 RIDGES.
* MIN HUMIDITY........36-51 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....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH SHIFTING TO THE SOUTH
IN THE AFTERNOON.
* VENTILATION INDEX...LOW (26-38) INCREASING TO LOW TO MODERATE
(155-327) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
51 TO 59. HIGHS 73 TO 85. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 51 TO 59. HIGHS 74 TO 86. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 51 TO 59. HIGHS 74 TO 86. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
A SLIGHT CHANCE OF SHOWERS. MOSTLY CLOUDY. LOWS 50 TO
58. HIGHS 69 TO 82. WEST WINDS UP TO 5 MPH.
WEDNESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
49 TO 56. HIGHS 67 TO 80. WEST WINDS 1 TO 6 MPH.
ORZ695-132330-
EAGLE CAP WILDERNESS-
523 AM PDT THU AUG 13 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
PATCHY SMOKE.
* MAX TEMPERATURE.....74-85...EXCEPT 63-74 RIDGES.
* MIN HUMIDITY........27-40 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 1 TO 6 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 1 TO 6 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......9500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (47-95) INCREASING TO MODERATE TO HIGH
(422-624) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. AREAS OF SMOKE IN THE EVENING.
PATCHY SMOKE AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS IN THE
EVENING. A SLIGHT CHANCE OF THUNDERSTORMS. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
* MIN TEMPERATURE.....51-57...EXCEPT 46-52 RIDGES.
* MAX HUMIDITY........74-89 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 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 2 TO 7 MPH SHIFTING TO THE
SOUTHWEST 1 TO 5 MPH AFTER MIDNIGHT.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
* VENTILATION INDEX...LOW (112-184) DECREASING TO LOW (25-31) AFTER
MIDNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY. PATCHY SMOKE IN THE MORNING. A
SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING. A CHANCE OF
SHOWERS. A CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....71-81...EXCEPT 60-70 RIDGES.
* MIN HUMIDITY........37-50 PERCENT...EXCEPT 49-62 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................30 PERCENT.
* CHC OF LIGHTNING....40 PERCENT (CHANCE).
* MIXING HEIGHT.......9500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (29-67) INCREASING TO MODERATE (338-468)
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 47 TO 55. HIGHS 68 TO 83. SOUTHEAST WINDS
1 TO 6 MPH.
SUNDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 49 TO 56. HIGHS 70 TO 85. SOUTHWEST
WINDS 2 TO 7 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 51 TO 58. HIGHS 70 TO 84. NORTHWEST
WINDS 2 TO 7 MPH.
TUESDAY
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 50 TO 58. HIGHS 66 TO 81. NORTHWEST WINDS
1 TO 6 MPH.
WEDNESDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 47 TO
55. HIGHS 63 TO 78. WEST WINDS 1 TO 6 MPH.
ORZ694-132330-
GRANDE RONDE VALLEY OF OREGON-
523 AM PDT THU AUG 13 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. PATCHY SMOKE IN THE MORNING,
THEN AREAS OF SMOKE IN THE AFTERNOON.
* MAX TEMPERATURE.....82-87.
* MIN HUMIDITY........28-33 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 4 TO 9 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 4 TO 10 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
* VENTILATION INDEX...LOW (61-119) INCREASING TO MODERATE TO HIGH
(463-589) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. AREAS OF SMOKE IN THE EVENING,
THEN PATCHY SMOKE AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS IN
THE EVENING, THEN A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS AFTER MIDNIGHT.
* MIN TEMPERATURE.....50-55.
* MAX HUMIDITY........76-87 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 2 TO 7 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 2 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW TO MODERATE (182-210) DECREASING TO LOW
(25-32) AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
PATCHY SMOKE IN THE MORNING. A CHANCE OF SHOWERS. A SLIGHT CHANCE
OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....79-85.
* MIN HUMIDITY........36-41 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH.
* VENTILATION INDEX...LOW (25-31) INCREASING TO MODERATE (250-368)
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 50 TO 55. HIGHS 82 TO 88. TERRAIN DRIVEN
WINDS LESS THAN 5 MPH.
SUNDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 50 TO 55. HIGHS 85 TO 90. SOUTH
WINDS UP TO 5 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 51 TO 56. HIGHS 84 TO 89. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
A SLIGHT CHANCE OF SHOWERS. MOSTLY CLOUDY. LOWS 50 TO
55. HIGHS 81 TO 86. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
WEDNESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
47 TO 52. HIGHS 78 TO 83. NORTHWEST WINDS 1 TO 6 MPH.
ORZ699-132330-
WESTERN FORESTED BLUE MOUNTAINS-
523 AM PDT THU AUG 13 2026
...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 5 AM
PDT FRIDAY FOR ABUNDANT LIGHTNING...
TODAY
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
PATCHY SMOKE. A SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE.....75-82...EXCEPT 70-77 RIDGES.
* MIN HUMIDITY........27-38 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING NORTH 1 TO
5 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (48-80) INCREASING TO MODERATE TO HIGH
(407-625) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE. A CHANCE OF
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS.
* MIN TEMPERATURE.....48-55.
* MAX HUMIDITY........68-83 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTH WINDS UP TO 5 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
* VENTILATION INDEX...LOW TO MODERATE (137-257) DECREASING TO LOW
(25-32) AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE IN THE MORNING. A
SLIGHT CHANCE OF SHOWERS IN THE MORNING, THEN A CHANCE OF SHOWERS
AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....76-82...EXCEPT 70-77 RIDGES.
* MIN HUMIDITY........30-43 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................20 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......10000 FT AGL.
* TRANSPORT WINDS.....EAST AROUND 5 MPH SHIFTING TO THE SOUTHWEST
IN THE AFTERNOON.
* VENTILATION INDEX...LOW (25-59) INCREASING TO MODERATE TO HIGH
(355-607) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS. PARTLY
CLOUDY. LOWS 48 TO 56. HIGHS 75 TO 83. TERRAIN DRIVEN WINDS LESS
THAN 5 MPH.
SUNDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 49 TO 56. HIGHS 77 TO 85. TERRAIN DRIVEN
WINDS LESS THAN 5 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 51 TO 58. HIGHS 77 TO 85. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
A SLIGHT CHANCE OF SHOWERS. MOSTLY CLOUDY. LOWS 50 TO
57. HIGHS 73 TO 81. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
WEDNESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
46 TO 53. HIGHS 70 TO 78. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
ORZ696-132330-
JOHN DAY VALLEY-
523 AM PDT THU AUG 13 2026
...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 5 AM
PDT FRIDAY FOR ABUNDANT LIGHTNING...
TODAY
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
AREAS OF SMOKE IN THE MORNING, THEN PATCHY SMOKE IN THE
AFTERNOON.
* MAX TEMPERATURE.....78-86...EXCEPT 73-78 RIDGES.
* MIN HUMIDITY........24-31 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING NORTHWEST 1
TO 6 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING NORTH 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 (39-55) INCREASING TO MODERATE TO HIGH
(381-555) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE. A CHANCE OF
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS.
* MIN TEMPERATURE.....51-58.
* MAX HUMIDITY........62-76 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 2 TO 7 MPH IN THE EVENING
BECOMING LIGHT WINDS LESS THAN 5 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTHEAST 5 TO 10 MPH.
* VENTILATION INDEX...MODERATE (223-321) DECREASING TO LOW (25-28)
AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE IN THE MORNING. A
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....78-86...EXCEPT 73-78 RIDGES.
* MIN HUMIDITY........26-32 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....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......10000 FT AGL.
* TRANSPORT WINDS.....EAST AROUND 5 MPH SHIFTING TO THE SOUTHWEST
IN THE AFTERNOON.
* VENTILATION INDEX...LOW (28-50) INCREASING TO MODERATE TO HIGH
(376-536) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 51 TO 58. HIGHS 80 TO 89. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 52 TO 58. HIGHS 82 TO 90. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 53 TO 60. HIGHS 81 TO 90. NORTHWEST
WINDS UP TO 5 MPH.
TUESDAY
A SLIGHT CHANCE OF SHOWERS. MOSTLY CLOUDY. LOWS 53 TO
59. HIGHS 77 TO 86. WEST WINDS UP TO 5 MPH.
WEDNESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
49 TO 55. HIGHS 75 TO 83. WEST WINDS 1 TO 6 MPH.
ORZ700-132330-
CENTRAL MOUNTAINS OF OREGON-
523 AM PDT THU AUG 13 2026
...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 9 PM
PDT THIS EVENING FOR ABUNDANT LIGHTNING...
TODAY
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
PATCHY SMOKE.
* MAX TEMPERATURE.....79-84...EXCEPT 71-78 RIDGES.
* MIN HUMIDITY........23-31 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING NORTHWEST 2
TO 7 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......10000 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (29-55) INCREASING TO MODERATE TO HIGH
(383-581) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. A CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. PATCHY SMOKE.
* MIN TEMPERATURE.....45-55.
* MAX HUMIDITY........70-85 PERCENT...EXCEPT 64-73 PERCENT RIDGES.
* 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....NORTH WINDS 1 TO 5 MPH IN THE EVENING
BECOMING LIGHT WINDS LESS THAN 5 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
* VENTILATION INDEX...MODERATE (254-374) DECREASING TO LOW (25-36)
AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE IN THE MORNING. A
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....80-85...EXCEPT 72-78 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....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......10000 FT AGL.
* TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
* VENTILATION INDEX...LOW (27-45) INCREASING TO MODERATE TO HIGH
(392-624) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
45 TO 56. HIGHS 81 TO 86. NORTHWEST WINDS 1 TO 6 MPH.
SUNDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
45 TO 56. HIGHS 82 TO 88. WEST WINDS 1 TO 6 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 46 TO 57. HIGHS 82 TO 88. WEST
WINDS 2 TO 7 MPH.
TUESDAY
A SLIGHT CHANCE OF SHOWERS. MOSTLY CLOUDY. LOWS 46 TO
56. HIGHS 78 TO 84. WEST WINDS 2 TO 7 MPH.
WEDNESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
43 TO 53. HIGHS 75 TO 81. WEST WINDS 1 TO 6 MPH.
ORZ703-132330-
WARM SPRINGS RESERVATION-
523 AM PDT THU AUG 13 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. PATCHY SMOKE.
* MAX TEMPERATURE.....79-87...EXCEPT 68-77 RIDGES.
* MIN HUMIDITY........26-34 PERCENT...EXCEPT 34-49 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 1
TO 5 MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....NORTHEAST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (25-41) INCREASING TO MODERATE (277-425)
IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE IN THE EVENING,
THEN AREAS OF SMOKE AFTER MIDNIGHT.
* MIN TEMPERATURE.....53-58.
* MAX HUMIDITY........64-79 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 2 TO 7 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 1 TO 5 MPH IN THE EVENING
BECOMING LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...MODERATE (203-351) DECREASING TO LOW (26-34)
AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
AREAS OF SMOKE IN THE MORNING. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....80-88...EXCEPT 69-78 RIDGES.
* MIN HUMIDITY........28-36 PERCENT...EXCEPT 37-52 PERCENT RIDGES.
* 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....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......9500 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 5 MPH SHIFTING TO THE SOUTHWEST
IN THE AFTERNOON.
* VENTILATION INDEX...LOW (30-48) INCREASING TO MODERATE (254-422)
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
54 TO 59. HIGHS 78 TO 88. NORTHWEST WINDS 2 TO 7 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 54 TO 59. HIGHS 79 TO 90. WEST
WINDS 2 TO 7 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 54 TO 59. HIGHS 79 TO 90. WEST
WINDS 2 TO 7 MPH.
TUESDAY
A SLIGHT CHANCE OF SHOWERS. MOSTLY CLOUDY. LOWS 53 TO
58. HIGHS 75 TO 86. WEST WINDS 3 TO 8 MPH.
WEDNESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
51 TO 56. HIGHS 72 TO 84. WEST WINDS 3 TO 8 MPH.
ORZ704-132330-
NORTHERN DESCHUTES NATIONAL FOREST-
523 AM PDT THU AUG 13 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. PATCHY SMOKE.
* MAX TEMPERATURE.....79-85...EXCEPT 67-76 RIDGES.
* MIN HUMIDITY........27-34 PERCENT...EXCEPT 34-47 PERCENT RIDGES.
* 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.......7500 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 5 MPH.
* VENTILATION INDEX...LOW (25-37) INCREASING TO LOW TO MODERATE
(125-305) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN
THE EVENING. PATCHY SMOKE.
* MIN TEMPERATURE.....45-53.
* MAX HUMIDITY........72-87 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT...EXCEPT GOOD RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW TO MODERATE (197-307) DECREASING TO LOW
(25-30) AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
AREAS OF SMOKE IN THE MORNING. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....80-86...EXCEPT 68-77 RIDGES.
* MIN HUMIDITY........27-35 PERCENT...EXCEPT 34-49 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING NORTHWEST 1
TO 5 MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
* VENTILATION INDEX...LOW (25-56) INCREASING TO MODERATE TO HIGH
(337-517) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 46 TO 54. HIGHS 72 TO 85. NORTHWEST
WINDS 1 TO 6 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 45 TO 53. HIGHS 73 TO 87. WEST
WINDS 1 TO 6 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 46 TO 54. HIGHS 74 TO 87. WEST
WINDS 1 TO 6 MPH.
TUESDAY
A SLIGHT CHANCE OF SHOWERS. MOSTLY CLOUDY. LOWS 45 TO
53. HIGHS 70 TO 83. WEST WINDS 2 TO 7 MPH.
WEDNESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
43 TO 51. HIGHS 67 TO 80. NORTHWEST WINDS 1 TO 6 MPH.
ORZ705-132330-
SOUTHERN DESCHUTES NATIONAL FOREST-
523 AM PDT THU AUG 13 2026
...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 9 PM
PDT THIS EVENING FOR ABUNDANT LIGHTNING...
TODAY
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* MAX TEMPERATURE.....77-82...EXCEPT 67-75 RIDGES.
* MIN HUMIDITY........26-38 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING NORTHWEST 2
TO 5 MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....EAST AROUND 5 MPH SHIFTING TO THE SOUTHWEST
IN THE AFTERNOON.
* VENTILATION INDEX...LOW (25-42) INCREASING TO MODERATE TO HIGH
(359-531) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN
THE EVENING. PATCHY SMOKE.
* MIN TEMPERATURE.....39-48.
* MAX HUMIDITY........83-98 PERCENT...EXCEPT 70-85 PERCENT RIDGES.
* HUMIDITY RECOVERY...EXCELLENT...EXCEPT GOOD RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....NORTH WINDS 2 TO 5 MPH IN THE EVENING
BECOMING LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW TO MODERATE (187-287) DECREASING TO LOW
(25-34) AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE IN THE MORNING. A
CHANCE OF SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* MAX TEMPERATURE.....77-82...EXCEPT 67-75 RIDGES.
* MIN HUMIDITY........27-42 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....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......10000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (25-55) INCREASING TO MODERATE TO VERY
HIGH (490-710) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 39 TO 50. HIGHS 74 TO 84. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 39 TO 50. HIGHS 76 TO 85. WEST
WINDS UP TO 5 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 40 TO 51. HIGHS 76 TO 85. WEST
WINDS UP TO 5 MPH.
TUESDAY
A SLIGHT CHANCE OF SHOWERS. MOSTLY CLOUDY. LOWS 40 TO
50. HIGHS 72 TO 82. WEST WINDS 1 TO 6 MPH.
WEDNESDAY
A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS. PARTLY CLOUDY. LOWS 37 TO 48. HIGHS 69 TO 78.
SOUTHWEST WINDS 1 TO 6 MPH.
ORZ697-132330-
CENTRAL BLUE MOUNTAINS-
523 AM PDT THU AUG 13 2026
...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 5 AM
PDT FRIDAY FOR ABUNDANT LIGHTNING...
TODAY
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
PATCHY SMOKE. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON.
* MAX TEMPERATURE.....77-82...EXCEPT 72-78 RIDGES.
* MIN HUMIDITY........25-31 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....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (53-101) INCREASING TO HIGH TO VERY HIGH
(582-726) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. PATCHY SMOKE. A CHANCE OF
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS.
* MIN TEMPERATURE.....45-53.
* MAX HUMIDITY........70-85 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT...EXCEPT GOOD RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
* VENTILATION INDEX...LOW TO MODERATE (164-266) DECREASING TO LOW
(25-39) AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
PATCHY SMOKE IN THE MORNING. A SLIGHT CHANCE OF SHOWERS IN THE
MORNING, THEN A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....75-80...EXCEPT 69-76 RIDGES.
* MIN HUMIDITY........32-42 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................20 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....EAST AROUND 5 MPH SHIFTING TO THE SOUTHWEST
IN THE AFTERNOON.
* VENTILATION INDEX...LOW (25-42) INCREASING TO MODERATE TO HIGH
(330-540) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 45 TO 53. HIGHS 75 TO 82. EAST
WINDS UP TO 5 MPH.
SUNDAY
A SLIGHT CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 46 TO
54. HIGHS 77 TO 84. SOUTHWEST WINDS 1 TO 6 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 47 TO 56. HIGHS 77 TO 84. NORTHWEST
WINDS UP TO 5 MPH.
TUESDAY
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
47 TO 56. HIGHS 74 TO 80. NORTHWEST WINDS UP TO 5 MPH.
WEDNESDAY
A SLIGHT CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS
44 TO 53. HIGHS 71 TO 77. WEST WINDS 1 TO 6 MPH.
ORZ698-132330-
SOUTHERN BLUE MOUNTAINS-
523 AM PDT THU AUG 13 2026
...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 5 AM
PDT FRIDAY FOR ABUNDANT LIGHTNING...
TODAY
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
PATCHY SMOKE.
* MAX TEMPERATURE.....78-84.
* MIN HUMIDITY........22-27 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 1 TO 5 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 1 TO 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......11000 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 10 MPH.
* VENTILATION INDEX...LOW (68-98) INCREASING TO HIGH TO VERY HIGH
(693-821) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. PATCHY SMOKE. A SLIGHT CHANCE
OF THUNDERSTORMS IN THE EVENING. A SLIGHT CHANCE OF SHOWERS.
* MIN TEMPERATURE.....46-55.
* MAX HUMIDITY........65-80 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT...EXCEPT GOOD RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 10 MPH.
* VENTILATION INDEX...MODERATE (255-333) DECREASING TO LOW (35-47)
AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....76-82.
* 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....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......10500 FT AGL.
* TRANSPORT WINDS.....EAST AROUND 5 MPH SHIFTING TO THE SOUTHWEST
IN THE AFTERNOON.
* VENTILATION INDEX...LOW (29-49) INCREASING TO HIGH TO VERY HIGH
(534-708) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
46 TO 54. HIGHS 79 TO 85. NORTHEAST WINDS 1 TO 6 MPH.
SUNDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
47 TO 55. HIGHS 81 TO 87. WEST WINDS 1 TO 6 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 48 TO 56. HIGHS 81 TO 87. NORTHWEST
WINDS 1 TO 6 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS 48 TO 56. HIGHS 78 TO 84.
NORTHWEST WINDS 1 TO 6 MPH.
WEDNESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
45 TO 53. HIGHS 75 TO 80. WEST WINDS 2 TO 7 MPH.
.8-14 DAY OUTLOOK FOR THURSDAY AUGUST 20 THROUGH WEDNESDAY AUGUST 26...
A GREATER CHANCE OF ABOVE-NORMAL TEMPERATURES AND ABOVE-NORMAL
PRECIPITATION.
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