951  
FNUS56 KPDT 122211  
FWFPDT  
 
FIRE WEATHER PLANNING FORECAST FOR NE OREGON AND SE WASHINGTON  
NATIONAL WEATHER SERVICE PENDLETON OR  
311 PM PDT WED AUG 12 2026  
 
...RED FLAG WARNING IN EFFECT FROM 1 PM THURSDAY 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 TO 9 PM PDT THURSDAY FOR  
ABUNDANT LIGHTNING FOR FIRE WEATHER ZONES OR700 AND OR705...  
 
   
DISCUSSION
 
 
RED FLAG WARNINGS WERE ISSUED FOR SEVERAL OREGON FIRE ZONES AS  
MONSOONAL MOISTURE INTERACTS WITH WEAK UPPER VORTICITY IN THE  
MEAN TROUGH FROM THE OREGON CASCADES AND EASTWARD THURSDAY  
AFTERNOON/EVENING INTO HE JOHN DAY BASIN AND SOUTHERN BLUE  
MOUNTAINS, EVEN BEYOND MIDNIGHT. THE SEASONAL DRY PERIOD WITH  
HIGH ERC’S HAVE TIPPED US TOWARD THE RED FLAG AS NBM MEMBERS ARE  
TRENDING AROUND 0.1 FLASHES /SQ MILE /5 MINS ACROSS THESE ZONES  
FROM MID AFTERNOON AND ACROSS THE OVERNIGHT HOURS INTO FRIDAY  
MORNING AND ANY GC CAN CREATE NEW STARTS. ANY CONVECTION BEYOND  
THURSDAY WILL BE EVALUATED AGAINST ANY WETTING RAIN CHANCES,  
WHICH WHILE ARE NOT HIGH, ARE QUITE VARIABLE AND AT 10 TO 70% ON  
A 24 HR BASIS HIGHEST IN THE EASTERN OREGON ZONES.  
 
***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. ***  
 
WAZ695-131115-  
EAST WASHINGTON SOUTH CENTRAL CASCADE MOUNTAINS-  
311 PM PDT WED AUG 12 2026  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY. A CHANCE OF SHOWERS AND A  
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. PATCHY SMOKE IN  
THE EVENING, THEN SMOKY AFTER MIDNIGHT.  
* MIN TEMPERATURE.....47-54.  
* MAX HUMIDITY........75-90 PERCENT.  
* HUMIDITY RECOVERY...GOOD...EXCEPT EXCELLENT RIDGES.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 2 TO 7 MPH.  
* RIDGES/UPR SLOPES....NORTHWEST WINDS 2 TO 7 MPH.  
* CWR.................0 PERCENT.  
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).  
* MIXING HEIGHT.......500 FT AGL.  
* TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.  
* VENTILATION INDEX...LOW TO MODERATE (143-265) DECREASING TO LOW  
(26-46) AFTER MIDNIGHT.  
   
THURSDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY. AREAS OF SMOKE. A CHANCE OF  
SHOWERS AND ISOLATED THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE.....72-81...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.......8500 FT AGL.  
* TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH.  
* VENTILATION INDEX...LOW (27-65) INCREASING TO LOW TO MODERATE  
(109-309) IN THE AFTERNOON.  
   
THURSDAY NIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.  
PATCHY SMOKE IN THE EVENING. A CHANCE OF SHOWERS AND ISOLATED  
THUNDERSTORMS IN THE EVENING.  
* MIN TEMPERATURE.....51-56.  
* MAX HUMIDITY........71-86 PERCENT.  
* HUMIDITY RECOVERY...GOOD.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 1 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 AROUND 5 MPH.  
* VENTILATION INDEX...LOW (65-161) DECREASING TO LOW (25-33) AFTER  
MIDNIGHT.  
   
FRIDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.  
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE.....71-80...EXCEPT 63-71 RIDGES.  
* MIN HUMIDITY........40-55 PERCENT...EXCEPT 51-64 PERCENT RIDGES.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING SOUTH 1 TO  
5 MPH IN THE AFTERNOON.  
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.  
* CWR.................30 PERCENT.  
* CHC OF LIGHTNING....30 PERCENT (CHANCE).  
* MIXING HEIGHT.......8500 FT AGL.  
* TRANSPORT WINDS.....EAST AROUND 5 MPH SHIFTING TO THE SOUTH IN  
THE AFTERNOON.  
* VENTILATION INDEX...LOW (25-35) INCREASING TO MODERATE (236-398)  
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 56. HIGHS 68 TO 82. NORTHWEST  
WINDS UP TO 5 MPH.    
SUNDAY
 
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 51 TO 56. HIGHS 70 TO 84. WEST WINDS UP TO  
5 MPH.    
MONDAY
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS  
52 TO 57. HIGHS 69 TO 83. WEST WINDS 1 TO 6 MPH.    
TUESDAY
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS  
51 TO 57. HIGHS 66 TO 80. WEST WINDS 2 TO 7 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS  
49 TO 55. HIGHS 64 TO 77. WEST WINDS 2 TO 7 MPH.  
 

 
 
WAZ690-131115-  
KITTITAS VALLEY-  
311 PM PDT WED AUG 12 2026  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY. SMOKY. A CHANCE OF SHOWERS AND  
A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. A SLIGHT CHANCE  
OF SHOWERS AFTER MIDNIGHT.  
* MIN TEMPERATURE.....55-61.  
* MAX HUMIDITY........65-80 PERCENT.  
* HUMIDITY RECOVERY...GOOD.  
* 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....20 PERCENT (SLIGHT CHANCE).  
* MIXING HEIGHT.......500 FT AGL.  
* TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.  
* VENTILATION INDEX...MODERATE (281-443) DECREASING TO LOW (44-60)  
AFTER MIDNIGHT.  
   
THURSDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY. AREAS OF SMOKE.  
* MAX TEMPERATURE.....79-86...EXCEPT 69-79 RIDGES.  
* MIN HUMIDITY........30-38 PERCENT.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING EAST 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.......9000 FT AGL.  
* TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH.  
* VENTILATION INDEX...LOW (57-95) INCREASING TO MODERATE (327-443)  
IN THE AFTERNOON.  
   
THURSDAY NIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE IN THE EVENING.  
* MIN TEMPERATURE.....56-62.  
* MAX HUMIDITY........61-76 PERCENT.  
* HUMIDITY RECOVERY...GOOD.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...NORTH WINDS 2 TO 5 MPH IN THE EVENING  
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.  
* RIDGES/UPR SLOPES....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...LOW TO MODERATE (199-269) DECREASING TO LOW  
(34-44) AFTER MIDNIGHT.  
   
FRIDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE.....79-86...EXCEPT 68-79 RIDGES.  
* MIN HUMIDITY........32-41 PERCENT.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING SOUTHEAST 1  
TO 5 MPH IN THE AFTERNOON.  
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING EAST 2 TO 5  
MPH IN THE AFTERNOON.  
* CWR.................0 PERCENT.  
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).  
* MIXING HEIGHT.......9500 FT AGL.  
* TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH SHIFTING TO THE SOUTH  
IN THE AFTERNOON.  
* VENTILATION INDEX...LOW (40-70) INCREASING TO LOW TO MODERATE  
(163-377) IN THE AFTERNOON.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SATURDAY
 
PARTLY CLOUDY. LOWS 56 TO 62. HIGHS 82 TO 89. TERRAIN  
DRIVEN WINDS LESS THAN 5 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS 57 TO 63. HIGHS 83 TO 90. NORTHWEST  
WINDS 1 TO 5 MPH.    
MONDAY
 
MOSTLY CLOUDY. LOWS 58 TO 64. HIGHS 83 TO 90. NORTHWEST  
WINDS 2 TO 7 MPH.    
TUESDAY
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS  
58 TO 64. HIGHS 80 TO 87. NORTHWEST WINDS 3 TO 8 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS  
55 TO 61. HIGHS 77 TO 85. NORTHWEST WINDS 3 TO 8 MPH.  
 

 
 
WAZ694-131115-  
YAKAMA ALPINE DISTRICT-  
311 PM PDT WED AUG 12 2026  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE IN THE EVENING,  
THEN AREAS OF SMOKE AFTER MIDNIGHT.  
* MIN TEMPERATURE.....47-55.  
* MAX HUMIDITY........72-87 PERCENT.  
* HUMIDITY RECOVERY...GOOD.  
* 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....NORTHWEST WINDS 2 TO 7 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...LOW TO MODERATE (163-247) DECREASING TO LOW  
(25-34) AFTER MIDNIGHT.  
   
THURSDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY. AREAS OF SMOKE. A CHANCE OF  
SHOWERS AND ISOLATED THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE.....77-84...EXCEPT 65-79 RIDGES.  
* MIN HUMIDITY........32-47 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.......8000 FT AGL.  
* TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH.  
* VENTILATION INDEX...LOW (44-82) INCREASING TO LOW TO MODERATE  
(192-330) IN THE AFTERNOON.  
   
THURSDAY NIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE IN THE EVENING. A  
SLIGHT CHANCE OF SHOWERS IN THE EVENING.  
* 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.......NEAR SURFACE.  
* TRANSPORT WINDS.....NORTH AROUND 5 MPH.  
* VENTILATION INDEX...LOW (87-143) DECREASING TO LOW (25-32) AFTER  
MIDNIGHT.  
   
FRIDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY. A CHANCE OF SHOWERS AND A  
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE.....77-85...EXCEPT 66-79 RIDGES.  
* MIN HUMIDITY........31-40 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.................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 (26-42) INCREASING TO MODERATE (303-395)  
IN THE AFTERNOON.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SATURDAY
 
PARTLY CLOUDY. LOWS 50 TO 58. HIGHS 73 TO 86. TERRAIN  
DRIVEN WINDS LESS THAN 5 MPH.    
SUNDAY
 
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS  
49 TO 58. HIGHS 75 TO 88. WEST WINDS 1 TO 5 MPH.    
MONDAY
 
MOSTLY CLOUDY. LOWS 50 TO 59. HIGHS 74 TO 88. WEST  
WINDS 1 TO 5 MPH.    
TUESDAY
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS  
50 TO 58. HIGHS 70 TO 84. WEST WINDS 2 TO 7 MPH.    
WEDNESDAY
 
A SLIGHT CHANCE OF SHOWERS. MOSTLY CLOUDY. LOWS  
47 TO 56. HIGHS 68 TO 82. WEST WINDS 2 TO 7 MPH.  
 

 
 
ORZ691-WAZ691-131115-  
LOWER COLUMBIA BASIN OF OREGON-LOWER COLUMBIA BASIN OF WASHINGTON-  
311 PM PDT WED AUG 12 2026  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR. AREAS OF SMOKE IN THE EVENING,  
THEN SMOKY AFTER MIDNIGHT.  
* MIN TEMPERATURE.....53-59.  
* MAX HUMIDITY........70-85 PERCENT.  
* HUMIDITY RECOVERY...GOOD.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...WEST WINDS 4 TO 9 MPH.  
* RIDGES/UPR SLOPES....NORTHWEST WINDS 4 TO 9 MPH.  
* CWR.................0 PERCENT.  
* CHC OF LIGHTNING....0 PERCENT.  
* MIXING HEIGHT.......500 FT AGL.  
* TRANSPORT WINDS.....WEST AROUND 10 MPH.  
* VENTILATION INDEX...MODERATE (209-371) DECREASING TO LOW (31-53)  
AFTER MIDNIGHT.  
   
THURSDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY. AREAS OF SMOKE IN THE MORNING,  
THEN PATCHY SMOKE IN THE AFTERNOON.  
* MAX TEMPERATURE.....82-88.  
* MIN HUMIDITY........28-35 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 (44-100) INCREASING TO MODERATE (308-450)  
IN THE AFTERNOON.  
   
THURSDAY NIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR. PATCHY SMOKE IN THE EVENING.  
* MIN TEMPERATURE.....56-61.  
* MAX HUMIDITY........60-75 PERCENT.  
* HUMIDITY RECOVERY...GOOD...EXCEPT MODERATE RIDGES.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...NORTH 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 5 TO 10 MPH.  
* VENTILATION INDEX...LOW TO MODERATE (184-296) DECREASING TO LOW  
(25-38) AFTER MIDNIGHT.  
   
FRIDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.  
* MAX TEMPERATURE.....83-89...EXCEPT 78-85 RIDGES.  
* MIN HUMIDITY........25-33 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 1 TO 5 MPH.  
* CWR.................0 PERCENT.  
* CHC OF LIGHTNING....0 PERCENT.  
* MIXING HEIGHT.......9500 FT AGL.  
* TRANSPORT WINDS.....NORTH AROUND 5 MPH.  
* VENTILATION INDEX...LOW (25-62) INCREASING TO MODERATE (249-423)  
IN THE AFTERNOON.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SATURDAY
 
PARTLY CLOUDY. LOWS 57 TO 62. HIGHS 84 TO 92.  
NORTHWEST WINDS 1 TO 6 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS 57 TO 62. HIGHS 86 TO 93. WEST  
WINDS 2 TO 7 MPH.    
MONDAY
 
MOSTLY CLOUDY. LOWS 58 TO 63. HIGHS 86 TO 92. WEST  
WINDS 2 TO 7 MPH.    
TUESDAY
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS  
58 TO 63. HIGHS 82 TO 89. WEST WINDS 4 TO 9 MPH.    
WEDNESDAY
 
A SLIGHT CHANCE OF SHOWERS. MOSTLY CLOUDY. LOWS  
56 TO 61. HIGHS 79 TO 86. WEST WINDS 3 TO 8 MPH.  
 

 
 
ORZ692-WAZ692-131115-  
NORTHERN BLUE MOUNTAINS OF OREGON-BLUE MOUNTAINS OF WASHINGTON-  
311 PM PDT WED AUG 12 2026  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR. AREAS OF SMOKE.  
* MIN TEMPERATURE.....48-57.  
* MAX HUMIDITY........73-88 PERCENT.  
* HUMIDITY RECOVERY...EXCELLENT...EXCEPT GOOD RIDGES.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.  
* RIDGES/UPR SLOPES....NORTHWEST WINDS 1 TO 5 MPH IN THE EVENING  
BECOMING LIGHT WINDS LESS THAN 5 MPH.  
* CWR.................0 PERCENT.  
* CHC OF LIGHTNING....0 PERCENT.  
* MIXING HEIGHT.......500 FT AGL.  
* TRANSPORT WINDS.....WEST AROUND 10 MPH.  
* VENTILATION INDEX...LOW TO MODERATE (145-221) DECREASING TO LOW  
(31-41) AFTER MIDNIGHT.  
   
THURSDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY. AREAS OF SMOKE.  
* MAX TEMPERATURE.....75-84...EXCEPT 69-74 RIDGES.  
* MIN HUMIDITY........32-45 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.....NORTHWEST 5 TO 10 MPH.  
* VENTILATION INDEX...LOW (55-85) INCREASING TO MODERATE (279-401)  
IN THE AFTERNOON.  
   
THURSDAY NIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE IN THE EVENING. A  
SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT.  
* MIN TEMPERATURE.....50-58.  
* MAX HUMIDITY........64-79 PERCENT.  
* HUMIDITY RECOVERY...GOOD.  
* 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....NORTH 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.....NORTH AROUND 10 MPH SHIFTING TO THE EAST  
AFTER MIDNIGHT.  
* VENTILATION INDEX...LOW TO MODERATE (142-200) DECREASING TO LOW  
(25-26) AFTER MIDNIGHT.  
   
FRIDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON.  
* 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.....SOUTHWEST 5 TO 10 MPH.  
* VENTILATION INDEX...LOW (25-49) INCREASING TO MODERATE TO HIGH  
(369-505) 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
 
A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF  
THUNDERSTORMS. PARTLY CLOUDY. LOWS 50 TO 59. HIGHS 77 TO 88.  
SOUTH WINDS UP TO 5 MPH.    
MONDAY
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS  
53 TO 62. HIGHS 77 TO 87. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.    
TUESDAY
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS  
53 TO 62. HIGHS 73 TO 83. WEST WINDS UP TO 5 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 50 TO  
59. HIGHS 71 TO 81. WEST WINDS UP TO 5 MPH.  
 

 
 
ORZ693-WAZ693-131115-  
CANYON GRASSLANDS OF WALLOWA COUNTY-  
SOUTHEAST WASHINGTON GRANDE RONDE VALLEY-  
311 PM PDT WED AUG 12 2026  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY. AREAS OF SMOKE.  
* MIN TEMPERATURE.....47-59.  
* MAX HUMIDITY........61-76 PERCENT...EXCEPT 55-62 PERCENT RIDGES.  
* HUMIDITY RECOVERY...GOOD...EXCEPT MODERATE RIDGES.  
* 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....NORTHWEST WINDS 2 TO 7 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 (189-293) DECREASING TO LOW  
(25-27) AFTER MIDNIGHT.  
   
THURSDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY. AREAS OF SMOKE.  
* MAX TEMPERATURE.....77-86...EXCEPT 71-78 RIDGES.  
* MIN HUMIDITY........27-34 PERCENT.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...NORTH 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 (37-61) INCREASING TO MODERATE TO HIGH  
(378-512) IN THE AFTERNOON.  
   
THURSDAY NIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. PATCHY SMOKE IN THE EVENING. A  
SLIGHT CHANCE OF SHOWERS AND ISOLATED THUNDERSTORMS IN THE  
EVENING. A CHANCE OF SHOWERS AFTER MIDNIGHT.  
* MIN TEMPERATURE.....48-59.  
* MAX HUMIDITY........67-82 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 (146-212) DECREASING TO LOW  
(25) AFTER MIDNIGHT.  
   
FRIDAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS. A CHANCE  
OF THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE.....75-84...EXCEPT 69-76 RIDGES.  
* MIN HUMIDITY........32-40 PERCENT...EXCEPT 36-51 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....30 PERCENT (CHANCE).  
* MIXING HEIGHT.......10000 FT AGL.  
* TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH.  
* VENTILATION INDEX...LOW (25-32) INCREASING TO MODERATE (282-468)  
IN THE AFTERNOON.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SATURDAY
 
A CHANCE OF SHOWERS AND THUNDERSTORMS. PARTLY CLOUDY.  
LOWS 47 TO 59. HIGHS 78 TO 87. TERRAIN DRIVEN WINDS LESS THAN  
5 MPH.    
SUNDAY
 
A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF  
THUNDERSTORMS. PARTLY CLOUDY. LOWS 47 TO 59. HIGHS 80 TO 90.  
SOUTH WINDS UP TO 5 MPH.    
MONDAY
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 50 TO 61. HIGHS 80 TO 89. TERRAIN DRIVEN  
WINDS LESS THAN 5 MPH.    
TUESDAY
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS  
50 TO 61. HIGHS 76 TO 86. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 48 TO  
59. HIGHS 74 TO 83. NORTHWEST WINDS 1 TO 6 MPH.  
 

 
 
ORZ701-131115-  
EASTERN COLUMBIA RIVER GORGE OF OREGON-  
311 PM PDT WED AUG 12 2026  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR. SMOKY IN THE EVENING. PATCHY  
SMOKE AFTER MIDNIGHT.  
* MIN TEMPERATURE.....49-56.  
* MAX HUMIDITY........78-93 PERCENT.  
* HUMIDITY RECOVERY...EXCELLENT...EXCEPT GOOD RIDGES.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...WEST WINDS 7 TO 13 MPH WITH GUSTS UP TO 25  
MPH DECREASING TO 2 TO 7 MPH AFTER MIDNIGHT.  
* RIDGES/UPR SLOPES....WEST WINDS 4 TO 9 MPH.  
* CWR.................0 PERCENT.  
* CHC OF LIGHTNING....0 PERCENT.  
* MIXING HEIGHT.......500 FT AGL.  
* TRANSPORT WINDS.....WEST 10 TO 15 MPH.  
* VENTILATION INDEX...MODERATE (201-311) DECREASING TO LOW (32-50)  
AFTER MIDNIGHT.  
   
THURSDAY
 
 
* 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 6 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.......7500 FT AGL.  
* TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH SHIFTING TO THE EAST  
IN THE AFTERNOON.  
* VENTILATION INDEX...LOW (25-51) INCREASING TO MODERATE (207-335)  
IN THE AFTERNOON.  
   
THURSDAY NIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR. PATCHY SMOKE IN THE EVENING.  
* MIN TEMPERATURE.....53-60.  
* MAX HUMIDITY........69-84 PERCENT.  
* HUMIDITY RECOVERY...GOOD.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 2 TO 5 MPH IN THE EVENING  
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.  
* RIDGES/UPR SLOPES....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 (174-260) DECREASING TO LOW  
(28-42) AFTER MIDNIGHT.  
   
FRIDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN  
THE AFTERNOON.  
* MAX TEMPERATURE.....82-87.  
* MIN HUMIDITY........32-44 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....10 PERCENT (VERY LOW CHANCE).  
* MIXING HEIGHT.......8500 FT AGL.  
* TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH SHIFTING TO THE  
SOUTHEAST IN THE AFTERNOON.  
* VENTILATION INDEX...LOW (25-39) INCREASING TO MODERATE (224-380)  
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 WITH A SLIGHT CHANCE OF SHOWERS. LOWS  
53 TO 60. HIGHS 85 TO 90. WEST WINDS 1 TO 6 MPH.    
MONDAY
 
MOSTLY CLOUDY. LOWS 54 TO 61. HIGHS 84 TO 89. WEST  
WINDS 2 TO 7 MPH.    
TUESDAY
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS  
54 TO 60. HIGHS 80 TO 85. WEST WINDS 3 TO 8 MPH.    
WEDNESDAY
 
A SLIGHT CHANCE OF SHOWERS. MOSTLY CLOUDY. LOWS  
52 TO 58. HIGHS 78 TO 83. WEST WINDS 3 TO 8 MPH.  
 

 
 
ORZ702-131115-  
EAST SLOPES OF THE MT. HOOD NATIONAL FOREST-  
311 PM PDT WED AUG 12 2026  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY. SMOKY.  
* MIN TEMPERATURE.....46-53.  
* MAX HUMIDITY........77-92 PERCENT.  
* HUMIDITY RECOVERY...EXCELLENT.  
* 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....NORTHWEST WINDS 1 TO 6 MPH IN THE EVENING  
BECOMING LIGHT WINDS LESS THAN 5 MPH.  
* CWR.................0 PERCENT.  
* CHC OF LIGHTNING....0 PERCENT.  
* MIXING HEIGHT.......500 FT AGL.  
* TRANSPORT WINDS.....WEST 10 TO 15 MPH.  
* VENTILATION INDEX...LOW TO MODERATE (159-213) DECREASING TO LOW  
(35-45) AFTER MIDNIGHT.  
   
THURSDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY. SMOKY.  
* MAX TEMPERATURE.....78-84...EXCEPT 71-80 RIDGES.  
* MIN HUMIDITY........34-48 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.......7000 FT AGL.  
* TRANSPORT WINDS.....EAST AROUND 5 MPH.  
* VENTILATION INDEX...LOW (25-42) INCREASING TO MODERATE (270-342)  
IN THE AFTERNOON.  
   
THURSDAY NIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR. SMOKY IN THE EVENING.  
* MIN TEMPERATURE.....50-58.  
* MAX HUMIDITY........67-82 PERCENT.  
* HUMIDITY RECOVERY...GOOD.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.  
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.  
* CWR.................0 PERCENT.  
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).  
* MIXING HEIGHT.......500 FT AGL.  
* TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.  
* VENTILATION INDEX...LOW TO MODERATE (128-214) DECREASING TO LOW  
(33-41) AFTER MIDNIGHT.  
   
FRIDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY. A CHANCE OF SHOWERS AND A  
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE.....78-84...EXCEPT 71-80 RIDGES.  
* MIN HUMIDITY........35-50 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  
SOUTHEAST IN THE AFTERNOON.  
* VENTILATION INDEX...LOW (25-29) INCREASING TO MODERATE (349-449)  
IN THE AFTERNOON.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SATURDAY
 
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS  
51 TO 58. HIGHS 73 TO 85. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.    
SUNDAY
 
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 51 TO 58. HIGHS 75 TO 86. TERRAIN DRIVEN  
WINDS LESS THAN 5 MPH.    
MONDAY
 
MOSTLY CLOUDY. LOWS 52 TO 59. HIGHS 73 TO 86. TERRAIN  
DRIVEN WINDS LESS THAN 5 MPH.    
TUESDAY
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS  
51 TO 58. HIGHS 69 TO 82. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS  
49 TO 56. HIGHS 68 TO 80. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.  
 

 
 
ORZ695-131115-  
EAGLE CAP WILDERNESS-  
311 PM PDT WED AUG 12 2026  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY. AREAS OF SMOKE.  
* MIN TEMPERATURE.....48-55.  
* MAX HUMIDITY........58-73 PERCENT.  
* HUMIDITY RECOVERY...GOOD...EXCEPT MODERATE RIDGES.  
* 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....10 PERCENT (VERY LOW CHANCE).  
* MIXING HEIGHT.......500 FT AGL.  
* TRANSPORT WINDS.....NORTH AROUND 10 MPH.  
* VENTILATION INDEX...LOW TO MODERATE (173-287) DECREASING TO LOW  
(26-44) AFTER MIDNIGHT.  
   
THURSDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY. AREAS OF SMOKE IN THE MORNING,  
THEN PATCHY SMOKE IN THE AFTERNOON.  
* MAX TEMPERATURE.....74-85...EXCEPT 64-74 RIDGES.  
* MIN HUMIDITY........27-41 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.......9000 FT AGL.  
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.  
* VENTILATION INDEX...LOW (42-90) INCREASING TO MODERATE TO HIGH  
(379-563) IN THE AFTERNOON.  
   
THURSDAY NIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. PATCHY SMOKE IN THE EVENING. A  
SLIGHT CHANCE OF SHOWERS IN THE EVENING. ISOLATED THUNDERSTORMS.  
A CHANCE OF SHOWERS AFTER MIDNIGHT.  
* MIN TEMPERATURE.....51-57...EXCEPT 46-52 RIDGES.  
* MAX HUMIDITY........72-87 PERCENT.  
* HUMIDITY RECOVERY...GOOD...EXCEPT EXCELLENT RIDGES.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...NORTH WINDS 2 TO 6 MPH IN THE EVENING  
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.  
* RIDGES/UPR SLOPES....NORTHWEST WINDS 2 TO 7 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 (117-193) DECREASING TO LOW (25-31) AFTER  
MIDNIGHT.  
   
FRIDAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF  
THUNDERSTORMS IN THE MORNING. SHOWERS LIKELY. A CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE.....71-82...EXCEPT 60-70 RIDGES.  
* MIN HUMIDITY........37-50 PERCENT...EXCEPT 50-63 PERCENT RIDGES.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.  
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.  
* CWR.................40 PERCENT.  
* CHC OF LIGHTNING....30 PERCENT (CHANCE).  
* MIXING HEIGHT.......9000 FT AGL.  
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.  
* VENTILATION INDEX...LOW (25-38) INCREASING TO MODERATE (296-440)  
IN THE AFTERNOON.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SATURDAY
 
A CHANCE OF SHOWERS AND THUNDERSTORMS. PARTLY CLOUDY.  
LOWS 48 TO 55. HIGHS 67 TO 82. SOUTHEAST WINDS 1 TO 6 MPH.    
SUNDAY
 
A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF  
THUNDERSTORMS. PARTLY CLOUDY. LOWS 48 TO 56. HIGHS 70 TO 85.  
SOUTHWEST WINDS 1 TO 6 MPH.    
MONDAY
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS  
51 TO 58. HIGHS 70 TO 85. NORTHWEST WINDS 1 TO 6 MPH.    
TUESDAY
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS  
51 TO 58. HIGHS 66 TO 81. WEST WINDS 1 TO 6 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 48 TO  
56. HIGHS 64 TO 79. WEST WINDS 1 TO 5 MPH.  
 

 
 
ORZ694-131115-  
GRANDE RONDE VALLEY OF OREGON-  
311 PM PDT WED AUG 12 2026  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY. AREAS OF SMOKE IN THE EVENING,  
THEN PATCHY SMOKE AFTER MIDNIGHT.  
* MIN TEMPERATURE.....48-53.  
* MAX HUMIDITY........73-88 PERCENT.  
* HUMIDITY RECOVERY...EXCELLENT...EXCEPT GOOD 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.......500 FT AGL.  
* TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.  
* VENTILATION INDEX...MODERATE (226-292) DECREASING TO LOW (26-48)  
AFTER MIDNIGHT.  
   
THURSDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.  
AREAS OF SMOKE.  
* 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.......7000 FT AGL.  
* TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.  
* VENTILATION INDEX...LOW (57-115) INCREASING TO MODERATE TO HIGH  
(443-567) IN THE AFTERNOON.  
   
THURSDAY NIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.  
AREAS OF SMOKE IN THE EVENING. A SLIGHT CHANCE OF SHOWERS IN THE  
EVENING. A CHANCE OF SHOWERS AND ISOLATED THUNDERSTORMS AFTER  
MIDNIGHT.  
* MIN TEMPERATURE.....50-55.  
* MAX HUMIDITY........73-85 PERCENT.  
* HUMIDITY RECOVERY...GOOD.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 3 TO 8 MPH IN THE EVENING  
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.  
* RIDGES/UPR SLOPES....NORTHWEST WINDS 3 TO 8 MPH.  
* CWR.................0 PERCENT.  
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).  
* MIXING HEIGHT.......500 FT AGL.  
* TRANSPORT WINDS.....NORTH 5 TO 10 MPH.  
* VENTILATION INDEX...LOW TO MODERATE (189-215) DECREASING TO LOW  
(25-35) AFTER MIDNIGHT.  
   
FRIDAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS. A 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....30 PERCENT (CHANCE).  
* MIXING HEIGHT.......9000 FT AGL.  
* TRANSPORT WINDS.....SOUTH AROUND 5 MPH.  
* VENTILATION INDEX...LOW (25-29) INCREASING TO LOW TO MODERATE  
(144-300) 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
 
A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF  
THUNDERSTORMS. PARTLY CLOUDY. LOWS 50 TO 55. HIGHS 85 TO 90.  
TERRAIN DRIVEN WINDS LESS THAN 5 MPH.    
MONDAY
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS  
52 TO 57. HIGHS 85 TO 90. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.    
TUESDAY
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS  
52 TO 57. HIGHS 82 TO 87. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 50 TO  
55. HIGHS 79 TO 84. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.  
 

 
 
ORZ699-131115-  
WESTERN FORESTED BLUE MOUNTAINS-  
311 PM PDT WED AUG 12 2026  
 
...RED FLAG WARNING IN EFFECT FROM 1 PM THURSDAY TO 5 AM PDT  
FRIDAY...  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR. PATCHY SMOKE.  
* MIN TEMPERATURE.....46-52.  
* MAX HUMIDITY........72-87 PERCENT.  
* HUMIDITY RECOVERY...EXCELLENT...EXCEPT GOOD RIDGES.  
* 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....NORTHWEST WINDS 1 TO 6 MPH IN THE EVENING  
BECOMING LIGHT WINDS LESS THAN 5 MPH.  
* CWR.................0 PERCENT.  
* CHC OF LIGHTNING....0 PERCENT.  
* MIXING HEIGHT.......500 FT AGL.  
* TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.  
* VENTILATION INDEX...MODERATE (226-304) DECREASING TO LOW (26-40)  
AFTER MIDNIGHT.  
   
THURSDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.  
AREAS OF SMOKE IN THE MORNING, THEN PATCHY SMOKE IN THE  
AFTERNOON.  
* MAX TEMPERATURE.....76-82...EXCEPT 70-77 RIDGES.  
* MIN HUMIDITY........26-38 PERCENT.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING NORTH 2 TO  
5 MPH IN THE AFTERNOON.  
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.  
* CWR.................0 PERCENT.  
* CHC OF LIGHTNING....0 PERCENT.  
* MIXING HEIGHT.......8500 FT AGL.  
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.  
* VENTILATION INDEX...LOW (42-74) INCREASING TO MODERATE TO HIGH  
(379-593) IN THE AFTERNOON.  
   
THURSDAY NIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE IN THE EVENING. A  
CHANCE OF SHOWERS AND ISOLATED THUNDERSTORMS.  
* MIN TEMPERATURE.....48-55.  
* MAX HUMIDITY........66-81 PERCENT.  
* HUMIDITY RECOVERY...GOOD.  
* 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....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 TO MODERATE (141-273) DECREASING TO LOW  
(25-35) AFTER MIDNIGHT.  
   
FRIDAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A  
CHANCE OF SHOWERS. A 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....30 PERCENT (CHANCE).  
* MIXING HEIGHT.......9500 FT AGL.  
* TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH SHIFTING TO THE  
SOUTHWEST IN THE AFTERNOON.  
* VENTILATION INDEX...LOW (25-33) INCREASING TO MODERATE TO HIGH  
(305-559) IN THE AFTERNOON.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SATURDAY
 
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS. PARTLY  
CLOUDY. LOWS 48 TO 56. HIGHS 74 TO 83. TERRAIN DRIVEN WINDS LESS  
THAN 5 MPH.    
SUNDAY
 
A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF  
THUNDERSTORMS. PARTLY CLOUDY. LOWS 49 TO 56. HIGHS 77 TO 85.  
TERRAIN DRIVEN WINDS LESS THAN 5 MPH.    
MONDAY
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS  
51 TO 58. HIGHS 76 TO 85. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.    
TUESDAY
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS  
51 TO 57. HIGHS 73 TO 81. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 48 TO  
55. HIGHS 71 TO 79. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.  
 

 
 
ORZ696-131115-  
JOHN DAY VALLEY-  
311 PM PDT WED AUG 12 2026  
 
...RED FLAG WARNING IN EFFECT FROM 1 PM THURSDAY TO 5 AM PDT  
FRIDAY...  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR. PATCHY SMOKE.  
* MIN TEMPERATURE.....48-54.  
* MAX HUMIDITY........70-84 PERCENT.  
* HUMIDITY RECOVERY...GOOD.  
* 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.....NORTHWEST 5 TO 10 MPH.  
* VENTILATION INDEX...MODERATE (292-364) DECREASING TO LOW (25-34)  
AFTER MIDNIGHT.  
   
THURSDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY. PATCHY SMOKE.  
* 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 NORTH 1 TO  
5 MPH IN THE AFTERNOON.  
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING NORTH 2 TO 5  
MPH IN THE AFTERNOON.  
* CWR.................0 PERCENT.  
* CHC OF LIGHTNING....0 PERCENT.  
* MIXING HEIGHT.......8500 FT AGL.  
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.  
* VENTILATION INDEX...LOW (35-49) INCREASING TO MODERATE TO HIGH  
(355-513) IN THE AFTERNOON.  
   
THURSDAY NIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE IN THE EVENING. A  
SLIGHT CHANCE OF SHOWERS IN THE EVENING. ISOLATED THUNDERSTORMS.  
A CHANCE OF SHOWERS AFTER MIDNIGHT.  
* MIN TEMPERATURE.....51-57.  
* MAX HUMIDITY........61-74 PERCENT.  
* HUMIDITY RECOVERY...GOOD...EXCEPT MODERATE RIDGES.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...NORTH WINDS 2 TO 6 MPH IN THE EVENING  
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.  
* RIDGES/UPR SLOPES....NORTH WINDS 3 TO 6 MPH IN THE EVENING  
BECOMING LIGHT WINDS LESS THAN 5 MPH.  
* CWR.................10 PERCENT.  
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).  
* MIXING HEIGHT.......NEAR SURFACE.  
* TRANSPORT WINDS.....NORTHEAST 5 TO 10 MPH.  
* VENTILATION INDEX...MODERATE (221-329) DECREASING TO LOW (25-29)  
AFTER MIDNIGHT.  
   
FRIDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE.....78-86...EXCEPT 73-78 RIDGES.  
* MIN HUMIDITY........26-33 PERCENT.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.  
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.  
* CWR.................0 PERCENT.  
* CHC OF LIGHTNING....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 (25-31) INCREASING TO MODERATE TO HIGH  
(302-508) 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 57. HIGHS 79 TO 88. TERRAIN  
DRIVEN WINDS LESS THAN 5 MPH.    
SUNDAY
 
A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. PARTLY  
CLOUDY. LOWS 51 TO 57. HIGHS 82 TO 90. TERRAIN DRIVEN WINDS LESS  
THAN 5 MPH.    
MONDAY
 
MOSTLY CLOUDY. LOWS 53 TO 59. HIGHS 81 TO 89. TERRAIN  
DRIVEN WINDS LESS THAN 5 MPH.    
TUESDAY
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS  
53 TO 59. HIGHS 77 TO 86. WEST WINDS UP TO 5 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 50 TO  
57. HIGHS 75 TO 83. SOUTHWEST WINDS 1 TO 6 MPH.  
 

 
 
ORZ700-131115-  
CENTRAL MOUNTAINS OF OREGON-  
311 PM PDT WED AUG 12 2026  
   
..RED FLAG WARNING IN EFFECT FROM 1 PM TO 9 PM PDT THURSDAY
 
 
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR. PATCHY SMOKE IN THE EVENING.  
AREAS OF SMOKE AFTER MIDNIGHT.  
* MIN TEMPERATURE.....41-50...EXCEPT 46-51 RIDGES.  
* MAX HUMIDITY........82-97 PERCENT.  
* HUMIDITY RECOVERY...EXCELLENT.  
* 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.......500 FT AGL.  
* TRANSPORT WINDS.....NORTH AROUND 15 MPH BECOMING NORTHWEST AROUND  
5 MPH AFTER MIDNIGHT.  
* VENTILATION INDEX...MODERATE TO HIGH (339-515) DECREASING TO LOW  
(25-44) AFTER MIDNIGHT.  
   
THURSDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY. AREAS OF SMOKE IN THE MORNING,  
THEN PATCHY SMOKE IN THE AFTERNOON.  
* 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.......9500 FT AGL.  
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.  
* VENTILATION INDEX...LOW (28-48) INCREASING TO MODERATE TO HIGH  
(366-568) IN THE AFTERNOON.  
   
THURSDAY NIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.  
PATCHY SMOKE IN THE EVENING. SCATTERED THUNDERSTORMS AND A CHANCE  
OF SHOWERS IN THE EVENING.  
* MIN TEMPERATURE.....44-54...EXCEPT 50-55 RIDGES.  
* MAX HUMIDITY........69-84 PERCENT...EXCEPT 63-72 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 2 TO 5 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 5 TO 10 MPH.  
* VENTILATION INDEX...MODERATE (275-381) DECREASING TO LOW (25-38)  
AFTER MIDNIGHT.  
   
FRIDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.  
* 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.......10500 FT AGL.  
* TRANSPORT WINDS.....NORTH AROUND 5 MPH SHIFTING TO THE SOUTHWEST  
IN THE AFTERNOON.  
* VENTILATION INDEX...LOW (25-30) INCREASING TO MODERATE TO HIGH  
(304-616) IN THE AFTERNOON.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SATURDAY
 
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 44 TO 55. HIGHS 81 TO 86. NORTHWEST WINDS  
1 TO 6 MPH.    
SUNDAY
 
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 44 TO 55. HIGHS 83 TO 88. WEST WINDS 1 TO  
6 MPH.    
MONDAY
 
MOSTLY CLOUDY. LOWS 45 TO 56. HIGHS 82 TO 88. WEST  
WINDS 2 TO 7 MPH.    
TUESDAY
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS  
46 TO 56. HIGHS 78 TO 84. WEST WINDS 1 TO 6 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 44 TO  
53. HIGHS 75 TO 81. WEST WINDS 1 TO 6 MPH.  
 

 
 
ORZ703-131115-  
WARM SPRINGS RESERVATION-  
311 PM PDT WED AUG 12 2026  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE.  
* MIN TEMPERATURE.....48-53.  
* MAX HUMIDITY........76-89 PERCENT.  
* HUMIDITY RECOVERY...EXCELLENT.  
* 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.......500 FT AGL.  
* TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.  
* VENTILATION INDEX...MODERATE (204-298) DECREASING TO LOW (28-44)  
AFTER MIDNIGHT.  
   
THURSDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.  
SMOKY IN THE MORNING, THEN AREAS OF SMOKE IN THE AFTERNOON.  
* MAX TEMPERATURE.....79-87...EXCEPT 68-77 RIDGES.  
* MIN HUMIDITY........26-34 PERCENT...EXCEPT 35-49 PERCENT RIDGES.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING NORTHEAST 2  
TO 6 MPH IN THE AFTERNOON.  
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING NORTHEAST 2  
TO 5 MPH IN THE AFTERNOON.  
* CWR.................0 PERCENT.  
* CHC OF LIGHTNING....0 PERCENT.  
* MIXING HEIGHT.......7500 FT AGL.  
* TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH.  
* VENTILATION INDEX...LOW (25-33) INCREASING TO MODERATE (276-398)  
IN THE AFTERNOON.  
   
THURSDAY NIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE IN THE EVENING.  
* MIN TEMPERATURE.....52-57.  
* MAX HUMIDITY........66-81 PERCENT.  
* HUMIDITY RECOVERY...GOOD.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 1 TO 6 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 (208-332) DECREASING TO LOW (26-38)  
AFTER MIDNIGHT.  
   
FRIDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY. A  
SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON.  
* MAX TEMPERATURE.....80-88...EXCEPT 69-78 RIDGES.  
* MIN HUMIDITY........27-36 PERCENT...EXCEPT 35-50 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.......9000 FT AGL.  
* TRANSPORT WINDS.....NORTH AROUND 5 MPH SHIFTING TO THE SOUTH IN  
THE AFTERNOON.  
* VENTILATION INDEX...LOW (25-35) INCREASING TO MODERATE (219-423)  
IN THE AFTERNOON.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SATURDAY
 
PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT  
CHANCE OF THUNDERSTORMS. LOWS 53 TO 58. HIGHS 78 TO 88. NORTHWEST  
WINDS 2 TO 7 MPH.    
SUNDAY
 
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 53 TO 58. HIGHS 79 TO 90. WEST WINDS 1 TO  
6 MPH.    
MONDAY
 
MOSTLY CLOUDY. LOWS 54 TO 59. HIGHS 78 TO 90. WEST  
WINDS 2 TO 7 MPH.    
TUESDAY
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS  
54 TO 59. HIGHS 74 TO 86. WEST WINDS 2 TO 7 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS  
52 TO 57. HIGHS 72 TO 83. WEST WINDS 2 TO 7 MPH.  
 

 
 
ORZ704-131115-  
NORTHERN DESCHUTES NATIONAL FOREST-  
311 PM PDT WED AUG 12 2026  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR.  
* MIN TEMPERATURE.....40-48.  
* MAX HUMIDITY........81-96 PERCENT.  
* HUMIDITY RECOVERY...EXCELLENT.  
* 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....WEST WINDS 3 TO 8 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.....WEST 5 TO 10 MPH.  
* VENTILATION INDEX...LOW TO MODERATE (185-271) DECREASING TO LOW  
(25-30) AFTER MIDNIGHT.  
   
THURSDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY. AREAS OF SMOKE.  
* MAX TEMPERATURE.....79-85...EXCEPT 68-76 RIDGES.  
* MIN HUMIDITY........27-35 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 (25-35) INCREASING TO LOW TO MODERATE  
(128-302) IN THE AFTERNOON.  
   
THURSDAY NIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE IN THE EVENING.  
* MIN TEMPERATURE.....44-52.  
* MAX HUMIDITY........74-89 PERCENT.  
* HUMIDITY RECOVERY...EXCELLENT...EXCEPT GOOD RIDGES.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.  
* RIDGES/UPR SLOPES....NORTHWEST WINDS 2 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 (234-324) DECREASING TO LOW (25-33)  
AFTER MIDNIGHT.  
   
FRIDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE.....80-86...EXCEPT 68-77 RIDGES.  
* MIN HUMIDITY........28-35 PERCENT...EXCEPT 35-50 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.......9000 FT AGL.  
* TRANSPORT WINDS.....NORTH AROUND 5 MPH SHIFTING TO THE SOUTH IN  
THE AFTERNOON.  
* VENTILATION INDEX...LOW (25-33) INCREASING TO MODERATE (282-462)  
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 72 TO 84. NORTHWEST  
WINDS 1 TO 6 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS 45 TO 53. HIGHS 74 TO 86. WEST  
WINDS 1 TO 6 MPH.    
MONDAY
 
MOSTLY CLOUDY. LOWS 46 TO 54. HIGHS 73 TO 86. WEST  
WINDS 1 TO 6 MPH.    
TUESDAY
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS  
46 TO 54. HIGHS 69 TO 82. WEST WINDS 1 TO 6 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 44 TO  
52. HIGHS 67 TO 80. WEST WINDS 1 TO 6 MPH.  
 

 
 
ORZ705-131115-  
SOUTHERN DESCHUTES NATIONAL FOREST-  
311 PM PDT WED AUG 12 2026  
   
..RED FLAG WARNING IN EFFECT FROM 1 PM TO 9 PM PDT THURSDAY
 
 
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR.  
* MIN TEMPERATURE.....35-45.  
* MAX HUMIDITY........93-100 PERCENT...EXCEPT 79-94 PERCENT RIDGES.  
* 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....NORTHWEST 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.......500 FT AGL.  
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.  
* VENTILATION INDEX...LOW TO MODERATE (164-434) DECREASING TO LOW  
(25-36) AFTER MIDNIGHT.  
   
THURSDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.  
PATCHY SMOKE. A SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON.  
* MAX TEMPERATURE.....77-83...EXCEPT 68-76 RIDGES.  
* MIN HUMIDITY........26-37 PERCENT.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.  
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING NORTH 2 TO 5  
MPH IN THE AFTERNOON.  
* CWR.................0 PERCENT.  
* CHC OF LIGHTNING....0 PERCENT.  
* MIXING HEIGHT.......8500 FT AGL.  
* TRANSPORT WINDS.....EAST AROUND 5 MPH SHIFTING TO THE SOUTHWEST  
IN THE AFTERNOON.  
* VENTILATION INDEX...LOW (25-35) INCREASING TO MODERATE TO HIGH  
(357-521) IN THE AFTERNOON.  
   
THURSDAY NIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE IN THE EVENING.  
* 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...NORTHWEST WINDS 2 TO 5 MPH IN THE EVENING  
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.  
* RIDGES/UPR SLOPES....NORTHWEST 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...MODERATE (217-329) DECREASING TO LOW (25-36)  
AFTER MIDNIGHT.  
   
FRIDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND  
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.......10500 FT AGL.  
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.  
* VENTILATION INDEX...LOW (25-31) INCREASING TO HIGH (543-643) 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 49. HIGHS 74 TO 83. TERRAIN  
DRIVEN WINDS LESS THAN 5 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS 38 TO 49. HIGHS 75 TO 85. WEST  
WINDS UP TO 5 MPH.    
MONDAY
 
MOSTLY CLOUDY. LOWS 40 TO 51. HIGHS 74 TO 84. WEST  
WINDS 1 TO 6 MPH.    
TUESDAY
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS  
41 TO 50. HIGHS 71 TO 81. WEST WINDS 1 TO 6 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 39 TO  
49. HIGHS 69 TO 78. SOUTHWEST WINDS UP TO 5 MPH.  
 

 
 
ORZ697-131115-  
CENTRAL BLUE MOUNTAINS-  
311 PM PDT WED AUG 12 2026  
 
...RED FLAG WARNING IN EFFECT FROM 1 PM THURSDAY TO 5 AM PDT  
FRIDAY...  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR. PATCHY SMOKE.  
* MIN TEMPERATURE.....44-53.  
* MAX HUMIDITY........63-78 PERCENT.  
* HUMIDITY RECOVERY...GOOD.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 2 TO 7 MPH.  
* RIDGES/UPR SLOPES....NORTHWEST WINDS 2 TO 7 MPH.  
* CWR.................0 PERCENT.  
* CHC OF LIGHTNING....0 PERCENT.  
* MIXING HEIGHT.......500 FT AGL.  
* TRANSPORT WINDS.....NORTH AROUND 10 MPH.  
* VENTILATION INDEX...MODERATE (315-415) DECREASING TO LOW (32-50)  
AFTER MIDNIGHT.  
   
THURSDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.  
PATCHY SMOKE. A SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON.  
* MAX TEMPERATURE.....77-82...EXCEPT 72-78 RIDGES.  
* MIN HUMIDITY........25-30 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.......9500 FT AGL.  
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.  
* VENTILATION INDEX...LOW (47-87) INCREASING TO HIGH TO VERY HIGH  
(554-716) IN THE AFTERNOON.  
   
THURSDAY NIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. PATCHY SMOKE IN THE EVENING. A  
CHANCE OF SHOWERS AND ISOLATED THUNDERSTORMS.  
* MIN TEMPERATURE.....45-53.  
* MAX HUMIDITY........68-83 PERCENT.  
* HUMIDITY RECOVERY...GOOD.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...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.......NEAR SURFACE.  
* TRANSPORT WINDS.....NORTH AROUND 10 MPH.  
* VENTILATION INDEX...LOW TO MODERATE (152-286) DECREASING TO LOW  
(25-38) AFTER MIDNIGHT.  
   
FRIDAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS. A CHANCE  
OF THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE.....75-80...EXCEPT 69-76 RIDGES.  
* MIN HUMIDITY........31-41 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....30 PERCENT (CHANCE).  
* MIXING HEIGHT.......10000 FT AGL.  
* TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH SHIFTING TO THE  
SOUTHWEST IN THE AFTERNOON.  
* VENTILATION INDEX...LOW (25-37) INCREASING TO MODERATE TO HIGH  
(361-569) 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 74 TO 81. EAST  
WINDS UP TO 5 MPH.    
SUNDAY
 
A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF  
THUNDERSTORMS. PARTLY CLOUDY. LOWS 45 TO 53. HIGHS 77 TO 84.  
SOUTH WINDS 1 TO 6 MPH.    
MONDAY
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS  
47 TO 56. HIGHS 77 TO 83. NORTHWEST WINDS UP TO 5 MPH.    
TUESDAY
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS  
47 TO 56. HIGHS 74 TO 80. WEST WINDS UP TO 5 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 45 TO  
54. HIGHS 71 TO 77. WEST WINDS UP TO 5 MPH.  
 

 
 
ORZ698-131115-  
SOUTHERN BLUE MOUNTAINS-  
311 PM PDT WED AUG 12 2026  
 
...RED FLAG WARNING IN EFFECT FROM 1 PM THURSDAY TO 5 AM PDT  
FRIDAY...  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE.  
* MIN TEMPERATURE.....46-54.  
* MAX HUMIDITY........59-74 PERCENT.  
* HUMIDITY RECOVERY...GOOD.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 2 TO 7 MPH.  
* RIDGES/UPR SLOPES....NORTHWEST WINDS 2 TO 7 MPH.  
* CWR.................0 PERCENT.  
* CHC OF LIGHTNING....0 PERCENT.  
* MIXING HEIGHT.......500 FT AGL.  
* TRANSPORT WINDS.....NORTH 10 TO 15 MPH.  
* VENTILATION INDEX...MODERATE TO HIGH (441-509) DECREASING TO LOW  
(48-64) AFTER MIDNIGHT.  
   
THURSDAY
 
 
* 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 6 MPH.  
* RIDGES/UPR SLOPES....NORTHWEST WINDS 2 TO 5 MPH IN THE MORNING  
BECOMING LIGHT LESS THAN 5 MPH.  
* CWR.................0 PERCENT.  
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).  
* MIXING HEIGHT.......10500 FT AGL.  
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.  
* VENTILATION INDEX...LOW (61-89) INCREASING TO HIGH TO VERY HIGH  
(695-849) IN THE AFTERNOON.  
   
THURSDAY NIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. PATCHY SMOKE IN THE EVENING. A  
SLIGHT CHANCE OF SHOWERS AND ISOLATED THUNDERSTORMS.  
* MIN TEMPERATURE.....46-54.  
* MAX HUMIDITY........64-79 PERCENT.  
* HUMIDITY RECOVERY...GOOD.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...NORTH WINDS UP TO 5 MPH.  
* RIDGES/UPR SLOPES....NORTH WINDS UP TO 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 (240-354) DECREASING TO LOW (38-50)  
AFTER MIDNIGHT.  
   
FRIDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS. A  
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE.....76-81...EXCEPT 71-76 RIDGES.  
* MIN HUMIDITY........24-31 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.....NORTHEAST AROUND 5 MPH SHIFTING TO THE  
SOUTHWEST IN THE AFTERNOON.  
* VENTILATION INDEX...LOW (29-41) INCREASING TO HIGH (542-662) IN  
THE AFTERNOON.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SATURDAY
 
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 46 TO 53. HIGHS 79 TO 85. NORTHEAST WINDS  
1 TO 6 MPH.    
SUNDAY
 
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 46 TO 54.  
HIGHS 81 TO 87. NORTH WINDS 1 TO 6 MPH.    
MONDAY
 
MOSTLY CLOUDY. LOWS 48 TO 56. HIGHS 81 TO 86. WEST  
WINDS 1 TO 6 MPH.    
TUESDAY
 
MOSTLY CLOUDY. LOWS 48 TO 56. HIGHS 78 TO 83. WEST  
WINDS 1 TO 6 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 46 TO  
54. 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 GREATER THAN NORMAL TEMPERATURES AND GREATER  
THAN NORMAL PRECIPITATION.  
 

 
 
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