083
FNUS56 KPDT 131626
FWFPDT
FIRE WEATHER PLANNING FORECAST FOR NE OREGON AND SE WASHINGTON
NATIONAL WEATHER SERVICE PENDLETON OR
926 AM PDT THU AUG 13 2026
...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 9 PM
PDT THIS EVENING FOR WA695, OR700, AND OR705...
...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 5 AM
PDT FRIDAY FOR ABUNDANT LIGHTNING FOR FIRE WEATHER ZONES OR695,
OR696, OR697, OR698, AND OR699 ...
DISCUSSION
RED FLAG WARNINGS ARE IN EFFECT TODAY FOR ABUNDANT
LIGHTNING ACROSS MUCH OF CENTRAL AND EASTERN OREGON AS WELL AS
CENTRAL WA. SLOWER STORM MOTIONS ARE EXPECTED WITH STORMS IN THE
WA CASCADES, WHICH COULD YIELD BETTER CHANCES OF WETTING RAINS.
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-
926 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.........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........37-52 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS UP TO 5 MPH IN THE MORNING
BECOMING 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.......8500 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 5 MPH.
* VENTILATION INDEX...LOW (34-68) INCREASING TO LOW TO MODERATE
(114-318) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
AREAS OF SMOKE. A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING. A SLIGHT CHANCE OF SHOWERS AFTER
MIDNIGHT.
* MIN TEMPERATURE.....51-56.
* MAX HUMIDITY........69-84 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 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.................0 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH SHIFTING TO THE
NORTHEAST AFTER MIDNIGHT.
* VENTILATION INDEX...LOW (67-151) DECREASING TO LOW (25-31) 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 SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* MAX TEMPERATURE.....70-79...EXCEPT 62-70 RIDGES.
* MIN HUMIDITY........44-59 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...EAST WINDS UP TO 5 MPH IN THE MORNING
BECOMING UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................30 PERCENT.
* CHC OF LIGHTNING....30 PERCENT (CHANCE).
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH.
* VENTILATION INDEX...LOW (43-65) INCREASING TO LOW TO MODERATE
(136-334) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS. PARTLY CLOUDY. LOWS 50 TO 55. HIGHS 68 TO 82. WEST
WINDS UP TO 5 MPH.
SUNDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
50 TO 56. HIGHS 69 TO 83. WEST WINDS UP TO 5 MPH.
MONDAY
PARTLY CLOUDY. LOWS 50 TO 56. HIGHS 68 TO 82. WEST
WINDS 2 TO 7 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 49 TO 56. HIGHS 64 TO 79. WEST
WINDS 3 TO 8 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 48 TO 54. HIGHS 64 TO 78. WEST
WINDS 3 TO 8 MPH.
WAZ690-132330-
KITTITAS VALLEY-
926 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...NORTHEAST WINDS UP TO 5 MPH.
* RIDGES/UPR SLOPES....NORTHEAST WINDS UP TO 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......9500 FT AGL.
* TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH.
* VENTILATION INDEX...LOW (59-97) INCREASING TO MODERATE (279-459)
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........59-74 PERCENT.
* HUMIDITY RECOVERY...GOOD...EXCEPT MODERATE RIDGES.
* 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.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 10 MPH.
* VENTILATION INDEX...LOW TO MODERATE (199-281) DECREASING TO LOW
(30-50) 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........31-41 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.....NORTHEAST AROUND 5 MPH SHIFTING TO THE SOUTH
IN THE AFTERNOON.
* VENTILATION INDEX...LOW (53-91) INCREASING TO LOW TO MODERATE
(145-363) 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 82 TO 90. NORTHWEST
WINDS 2 TO 7 MPH.
MONDAY
PARTLY CLOUDY. LOWS 57 TO 63. HIGHS 82 TO 89. NORTHWEST
WINDS 3 TO 8 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 56 TO 62. HIGHS 80 TO 87.
NORTHWEST WINDS 4 TO 10 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 54 TO 60. HIGHS 78 TO 86.
NORTHWEST WINDS 4 TO 10 MPH.
WAZ694-132330-
YAKAMA ALPINE DISTRICT-
926 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....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....EAST AROUND 5 MPH.
* VENTILATION INDEX...LOW (39-77) INCREASING TO LOW TO MODERATE
(168-356) 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........62-77 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 (79-147) DECREASING TO LOW (25-35) 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........31-41 PERCENT...EXCEPT 39-54 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.......8500 FT AGL.
* TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH SHIFTING TO THE SOUTH
IN THE AFTERNOON.
* VENTILATION INDEX...LOW (37-65) INCREASING TO MODERATE (314-434)
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 59. HIGHS 72 TO 86. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 49 TO 58. HIGHS 74 TO 88. WEST
WINDS 1 TO 5 MPH.
MONDAY
PARTLY CLOUDY. LOWS 49 TO 58. HIGHS 73 TO 87. WEST
WINDS 2 TO 7 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 47 TO 56. HIGHS 69 TO 83. WEST
WINDS 2 TO 7 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 45 TO 54. HIGHS 69 TO 82. WEST
WINDS 2 TO 7 MPH.
ORZ691-WAZ691-132330-
LOWER COLUMBIA BASIN OF OREGON-LOWER COLUMBIA BASIN OF WASHINGTON-
926 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........28-36 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.......9500 FT AGL.
* TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
* VENTILATION INDEX...LOW (46-102) INCREASING TO MODERATE (318-482)
IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE.
* MIN TEMPERATURE.....56-61.
* MAX HUMIDITY........57-72 PERCENT.
* HUMIDITY RECOVERY...MODERATE.
* 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 (191-309) DECREASING TO LOW
(25-40) AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY SUNNY. PATCHY SMOKE IN THE MORNING.
* MAX TEMPERATURE.....83-89...EXCEPT 78-85 RIDGES.
* MIN HUMIDITY........25-33 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....0 PERCENT.
* MIXING HEIGHT.......9500 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 5 MPH.
* VENTILATION INDEX...LOW (37-87) INCREASING TO MODERATE (284-450)
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
57 TO 62. HIGHS 85 TO 92. NORTHWEST WINDS 1 TO 5 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 57 TO 63. HIGHS 85 TO 92. WEST
WINDS 2 TO 7 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 58 TO 63. HIGHS 84 TO 91. WEST
WINDS 2 TO 7 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 56 TO 61. HIGHS 80 TO 88. WEST
WINDS 4 TO 9 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 54 TO 59. HIGHS 80 TO 87.
SOUTHWEST WINDS 4 TO 10 MPH.
ORZ692-WAZ692-132330-
NORTHERN BLUE MOUNTAINS OF OREGON-BLUE MOUNTAINS OF WASHINGTON-
926 AM PDT THU AUG 13 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. AREAS OF SMOKE.
* MAX TEMPERATURE.....75-83...EXCEPT 68-74 RIDGES.
* MIN HUMIDITY........32-45 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 (60-92) INCREASING TO MODERATE (328-482)
IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
PATCHY SMOKE. A SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT.
* MIN TEMPERATURE.....51-59.
* 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....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 10 MPH SHIFTING TO THE SOUTHEAST
AFTER MIDNIGHT.
* VENTILATION INDEX...LOW TO MODERATE (156-206) DECREASING TO LOW
(25-26) AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
PATCHY SMOKE IN THE MORNING.
* MAX TEMPERATURE.....76-85...EXCEPT 70-75 RIDGES.
* MIN HUMIDITY........30-40 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING NORTHWEST 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.....WEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (25-78) INCREASING TO MODERATE (370-484)
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS. PARTLY CLOUDY. 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 50 TO 59. HIGHS 77 TO 87. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
52 TO 61. HIGHS 76 TO 86. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
50 TO 60. HIGHS 72 TO 83. WEST WINDS 1 TO 6 MPH.
WEDNESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
48 TO 57. HIGHS 71 TO 81. WEST WINDS 1 TO 6 MPH.
ORZ693-WAZ693-132330-
CANYON GRASSLANDS OF WALLOWA COUNTY-
SOUTHEAST WASHINGTON GRANDE RONDE VALLEY-
926 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........27-33 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 (52-70) INCREASING TO HIGH (523-617) IN
THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. PATCHY SMOKE. A SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS IN THE EVENING. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
* MIN TEMPERATURE.....48-59.
* MAX HUMIDITY........73-88 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT...EXCEPT GOOD 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....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 AROUND 10 MPH SHIFTING TO THE SOUTH
AFTER MIDNIGHT.
* VENTILATION INDEX...LOW TO MODERATE (175-231) 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 68-75 RIDGES.
* MIN HUMIDITY........33-41 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.......8500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH.
* VENTILATION INDEX...LOW (42-68) INCREASING TO MODERATE (279-429)
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 47 TO 59. HIGHS 77 TO 87. TERRAIN DRIVEN
WINDS LESS THAN 5 MPH.
SUNDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 46 TO 59. HIGHS 80 TO 89. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 49 TO 61. HIGHS 78 TO 87. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
A CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 48 TO 60.
HIGHS 75 TO 84. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
WEDNESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
46 TO 58. HIGHS 74 TO 83. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
ORZ701-132330-
EASTERN COLUMBIA RIVER GORGE OF OREGON-
926 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........32-40 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 (25-53) INCREASING TO MODERATE (200-338)
IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. AREAS OF SMOKE.
* MIN TEMPERATURE.....54-60.
* MAX HUMIDITY........68-83 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 (193-267) DECREASING TO LOW
(29-41) AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
PATCHY SMOKE IN THE MORNING.
* MAX TEMPERATURE.....82-87.
* MIN HUMIDITY........33-46 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH SHIFTING TO THE SOUTH
IN THE AFTERNOON.
* VENTILATION INDEX...LOW (35-67) INCREASING TO LOW TO MODERATE
(151-321) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS 53 TO 61. HIGHS 83 TO 88. WEST
WINDS 1 TO 6 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 53 TO 60. HIGHS 83 TO 88. WEST
WINDS 1 TO 6 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 53 TO 60. HIGHS 83 TO 88. WEST
WINDS 3 TO 8 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 52 TO 58. HIGHS 78 TO 83. WEST
WINDS 4 TO 10 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 49 TO 56. HIGHS 78 TO 83. WEST
WINDS 4 TO 9 MPH.
ORZ702-132330-
EAST SLOPES OF THE MT. HOOD NATIONAL FOREST-
926 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 (25-51) INCREASING TO MODERATE (282-336)
IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. SMOKY IN THE EVENING, THEN
AREAS OF SMOKE AFTER MIDNIGHT.
* 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....0 PERCENT.
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
* VENTILATION INDEX...LOW TO MODERATE (142-220) DECREASING TO LOW
(28-36) 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.....78-84...EXCEPT 71-79 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 SOUTH
IN THE AFTERNOON.
* VENTILATION INDEX...LOW (27-41) INCREASING TO LOW TO MODERATE
(168-320) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
A CHANCE OF SHOWERS. MOSTLY CLOUDY. LOWS 51 TO 58.
HIGHS 72 TO 85. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 50 TO 58. HIGHS 73 TO 86. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 51 TO 58. HIGHS 72 TO 85. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 49 TO 56. HIGHS 67 TO 81. WEST
WINDS 1 TO 5 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 47 TO 53. HIGHS 68 TO 81. WEST
WINDS 1 TO 6 MPH.
ORZ695-132330-
EAGLE CAP WILDERNESS-
926 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.....74-85...EXCEPT 63-74 RIDGES.
* MIN HUMIDITY........28-42 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 (47-93) INCREASING TO MODERATE TO HIGH
(461-635) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. AREAS OF SMOKE IN THE EVENING.
PATCHY SMOKE AFTER MIDNIGHT. A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS.
* MIN TEMPERATURE.....50-57...EXCEPT 46-52 RIDGES.
* MAX HUMIDITY........80-95 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 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...LOW (129-175) DECREASING TO LOW (25-30) 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........36-50 PERCENT...EXCEPT 51-64 PERCENT RIDGES.
* 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....40 PERCENT (CHANCE).
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (25-51) INCREASING TO MODERATE (246-354)
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
A CHANCE OF SHOWERS AND THUNDERSTORMS. PARTLY CLOUDY.
LOWS 47 TO 55. HIGHS 67 TO 82. SOUTH WINDS 1 TO 5 MPH.
SUNDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 48 TO 56. HIGHS 69 TO 84. SOUTHWEST
WINDS 1 TO 6 MPH.
MONDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 51 TO 58. HIGHS 68 TO 83. NORTHWEST
WINDS 1 TO 6 MPH.
TUESDAY
A CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 49 TO 56.
HIGHS 65 TO 80. WEST WINDS 1 TO 6 MPH.
WEDNESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
47 TO 54. HIGHS 64 TO 79. NORTHWEST WINDS 1 TO 5 MPH.
ORZ694-132330-
GRANDE RONDE VALLEY OF OREGON-
926 AM PDT THU AUG 13 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
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 5 TO 11 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
* VENTILATION INDEX...LOW (62-122) INCREASING TO HIGH (508-648) IN
THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. AREAS OF SMOKE IN THE EVENING.
PATCHY SMOKE AFTER MIDNIGHT. A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS.
* MIN TEMPERATURE.....51-56.
* MAX HUMIDITY........78-91 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....NORTHWEST WINDS 3 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.....NORTHWEST AROUND 10 MPH SHIFTING TO THE EAST
AFTER MIDNIGHT.
* VENTILATION INDEX...LOW TO MODERATE (194-226) DECREASING TO LOW
(25-29) 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.....79-85.
* MIN HUMIDITY........34-40 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....30 PERCENT (CHANCE).
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 5 MPH.
* VENTILATION INDEX...LOW (25-38) INCREASING TO LOW TO MODERATE
(192-304) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS. PARTLY
CLOUDY. LOWS 50 TO 55. HIGHS 82 TO 87. SOUTHEAST WINDS UP TO
5 MPH.
SUNDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 50 TO 55. HIGHS 84 TO 89. SOUTHWEST
WINDS UP TO 5 MPH.
MONDAY
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 51 TO 56. HIGHS 83 TO 88. TERRAIN DRIVEN
WINDS LESS THAN 5 MPH.
TUESDAY
A CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 50 TO 55.
HIGHS 80 TO 85. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
WEDNESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
47 TO 52. HIGHS 79 TO 84. NORTHWEST WINDS 1 TO 6 MPH.
ORZ699-132330-
WESTERN FORESTED BLUE MOUNTAINS-
926 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 CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....75-82...EXCEPT 70-77 RIDGES.
* MIN HUMIDITY........28-39 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.......9000 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (47-81) INCREASING TO MODERATE TO HIGH
(437-667) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
PATCHY SMOKE. A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. A
CHANCE OF SHOWERS.
* 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.....NORTHEAST 5 TO 10 MPH.
* VENTILATION INDEX...LOW TO MODERATE (142-268) 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.....75-82...EXCEPT 69-76 RIDGES.
* MIN HUMIDITY........29-42 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
* VENTILATION INDEX...LOW (26-60) INCREASING TO MODERATE (260-484)
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
SHOWERS LIKELY AND A SLIGHT CHANCE OF THUNDERSTORMS.
PARTLY CLOUDY. LOWS 48 TO 56. HIGHS 74 TO 83. TERRAIN DRIVEN
WINDS LESS THAN 5 MPH.
SUNDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 49 TO 56. HIGHS 76 TO 84. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 50 TO 57. HIGHS 75 TO 83. TERRAIN DRIVEN
WINDS LESS THAN 5 MPH.
TUESDAY
A CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 49 TO 55.
HIGHS 72 TO 80. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
WEDNESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
46 TO 52. HIGHS 71 TO 79. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
ORZ696-132330-
JOHN DAY VALLEY-
926 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........26-32 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING NORTHWEST 1
TO 5 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 (37-55) INCREASING TO MODERATE TO HIGH
(412-584) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
PATCHY SMOKE. A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. A
CHANCE OF SHOWERS.
* MIN TEMPERATURE.....51-57.
* MAX HUMIDITY........63-78 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHEAST 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.................10 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
* VENTILATION INDEX...MODERATE (232-344) DECREASING TO LOW (25-29)
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.......9000 FT AGL.
* TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
* VENTILATION INDEX...LOW (25-42) INCREASING TO MODERATE (318-456)
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS. MOSTLY CLOUDY. LOWS 52 TO 58. HIGHS 80 TO 88.
TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 51 TO 57. HIGHS 81 TO 90. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 53 TO 59. HIGHS 79 TO 88. NORTHWEST
WINDS UP TO 5 MPH.
TUESDAY
A SLIGHT CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 51 TO
57. HIGHS 76 TO 85. WEST WINDS 1 TO 6 MPH.
WEDNESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
48 TO 55. HIGHS 75 TO 84. WEST WINDS 1 TO 6 MPH.
ORZ700-132330-
CENTRAL MOUNTAINS OF OREGON-
926 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........25-33 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 BECOMING NORTHWEST 2
TO 5 MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......10000 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (28-54) INCREASING TO MODERATE TO HIGH
(409-623) 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.....44-54.
* 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.................0 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
* VENTILATION INDEX...MODERATE (258-362) DECREASING TO LOW (25-34)
AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE IN THE MORNING. A
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....79-85...EXCEPT 72-78 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.......9000 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 5 MPH SHIFTING TO THE SOUTHWEST
IN THE AFTERNOON.
* VENTILATION INDEX...LOW (27-41) INCREASING TO MODERATE TO HIGH
(337-559) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS 45 TO 55. HIGHS 81 TO 87.
NORTHWEST WINDS 1 TO 6 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 44 TO 55. HIGHS 82 TO 87. WEST
WINDS 1 TO 6 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 46 TO 56. HIGHS 80 TO 87. WEST
WINDS 2 TO 7 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 44 TO 54. HIGHS 77 TO 83. WEST
WINDS 2 TO 7 MPH.
WEDNESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
42 TO 51. HIGHS 76 TO 82. NORTHWEST WINDS 1 TO 6 MPH.
ORZ703-132330-
WARM SPRINGS RESERVATION-
926 AM PDT THU AUG 13 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. PATCHY SMOKE.
* MAX TEMPERATURE.....79-87...EXCEPT 68-77 RIDGES.
* MIN HUMIDITY........27-34 PERCENT...EXCEPT 35-48 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING NORTHEAST 2
TO 7 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING NORTHEAST 2
TO 5 MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH.
* VENTILATION INDEX...LOW (25-35) INCREASING TO MODERATE (231-417)
IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. 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 AROUND 10 MPH.
* VENTILATION INDEX...MODERATE (230-360) DECREASING TO LOW (26-36)
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.....80-88...EXCEPT 68-78 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....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 5 MPH SHIFTING TO THE SOUTHWEST
IN THE AFTERNOON.
* VENTILATION INDEX...LOW (33-53) INCREASING TO MODERATE (202-354)
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS. MOSTLY CLOUDY. LOWS 54 TO 59. HIGHS 77 TO 89.
NORTHWEST WINDS 1 TO 6 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 53 TO 58. HIGHS 79 TO 89. WEST
WINDS 2 TO 7 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 54 TO 59. HIGHS 77 TO 89. WEST
WINDS 2 TO 7 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 51 TO 56. HIGHS 73 TO 85. WEST
WINDS 3 TO 8 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 49 TO 54. HIGHS 73 TO 84. WEST
WINDS 4 TO 9 MPH.
ORZ704-132330-
NORTHERN DESCHUTES NATIONAL FOREST-
926 AM PDT THU AUG 13 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. PATCHY SMOKE.
* MAX TEMPERATURE.....79-85...EXCEPT 67-76 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.......8000 FT AGL.
* TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH SHIFTING TO THE WEST
IN THE AFTERNOON.
* VENTILATION INDEX...LOW (25-34) INCREASING TO LOW TO MODERATE
(188-348) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. 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...MODERATE (215-347) DECREASING TO LOW (25-31)
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.....79-86...EXCEPT 67-76 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 BECOMING NORTHWEST 1
TO 5 MPH IN THE AFTERNOON.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 5 MPH SHIFTING TO THE SOUTHWEST
IN THE AFTERNOON.
* VENTILATION INDEX...LOW (27-57) INCREASING TO MODERATE (286-428)
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 46 TO 54. HIGHS 72 TO 84. WEST
WINDS 1 TO 6 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 45 TO 53. HIGHS 73 TO 86. WEST
WINDS 1 TO 6 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 46 TO 54. HIGHS 72 TO 85. WEST
WINDS 1 TO 6 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 43 TO 51. HIGHS 68 TO 81. WEST
WINDS 2 TO 7 MPH.
WEDNESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
41 TO 49. HIGHS 68 TO 81. NORTHWEST WINDS 1 TO 6 MPH.
ORZ705-132330-
SOUTHERN DESCHUTES NATIONAL FOREST-
926 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........27-39 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.................10 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 (25-38) INCREASING TO MODERATE TO HIGH
(429-621) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. PATCHY SMOKE.
* MIN TEMPERATURE.....39-48.
* MAX HUMIDITY........83-98 PERCENT...EXCEPT 68-83 PERCENT RIDGES.
* 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....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...MODERATE (210-308) DECREASING TO LOW (25-33)
AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE IN THE MORNING. A
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....77-82...EXCEPT 67-75 RIDGES.
* MIN HUMIDITY........28-34 PERCENT...EXCEPT 30-45 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....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (26-54) INCREASING TO MODERATE TO HIGH
(391-585) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS. MOSTLY CLOUDY. LOWS 39 TO 50. HIGHS 74 TO 84.
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 50. HIGHS 74 TO 84. WEST
WINDS 1 TO 6 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 38 TO 48. HIGHS 70 TO 80. WEST
WINDS 1 TO 6 MPH.
WEDNESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
36 TO 46. HIGHS 70 TO 80. WEST WINDS 1 TO 6 MPH.
ORZ697-132330-
CENTRAL BLUE MOUNTAINS-
926 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 CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....77-82...EXCEPT 72-78 RIDGES.
* MIN HUMIDITY........27-33 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 1 TO 5 MPH IN THE MORNING
BECOMING LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......9500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 10 MPH.
* VENTILATION INDEX...LOW (53-105) INCREASING TO HIGH TO VERY HIGH
(611-719) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. PATCHY SMOKE. SHOWERS LIKELY
AND A CHANCE OF THUNDERSTORMS IN THE EVENING. A CHANCE OF SHOWERS
AND A SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT.
* MIN TEMPERATURE.....44-52.
* MAX HUMIDITY........75-90 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.................40 PERCENT.
* CHC OF LIGHTNING....30 PERCENT (CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 10 MPH.
* VENTILATION INDEX...LOW TO MODERATE (143-249) 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.....74-79...EXCEPT 68-75 RIDGES.
* MIN HUMIDITY........32-43 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.....EAST AROUND 5 MPH SHIFTING TO THE SOUTHWEST
IN THE AFTERNOON.
* VENTILATION INDEX...LOW (25-41) INCREASING TO MODERATE TO HIGH
(326-506) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS. PARTLY CLOUDY. LOWS 45 TO 53. HIGHS 74 TO 82. EAST
WINDS UP TO 5 MPH.
SUNDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
46 TO 54. HIGHS 77 TO 84. WEST WINDS 1 TO 6 MPH.
MONDAY
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 47 TO 56. HIGHS 75 TO 82. NORTHWEST WINDS UP
TO 5 MPH.
TUESDAY
A SLIGHT CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 45 TO
54. HIGHS 73 TO 79. NORTHWEST WINDS UP TO 5 MPH.
WEDNESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
43 TO 51. HIGHS 72 TO 78. NORTHWEST WINDS 1 TO 6 MPH.
ORZ698-132330-
SOUTHERN BLUE MOUNTAINS-
926 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.....78-84.
* MIN HUMIDITY........24-30 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 1 TO 5 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 1 TO 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......10500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 10 MPH.
* VENTILATION INDEX...LOW (73-103) INCREASING TO HIGH TO VERY HIGH
(686-812) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. PATCHY SMOKE. A CHANCE OF
THUNDERSTORMS IN THE EVENING. A CHANCE OF SHOWERS.
* MIN TEMPERATURE.....45-53.
* MAX HUMIDITY........79-94 PERCENT...EXCEPT 73-83 PERCENT RIDGES.
* 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....30 PERCENT (CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 10 MPH.
* VENTILATION INDEX...MODERATE (230-294) DECREASING TO LOW (36-44)
AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....75-80...EXCEPT 70-75 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.......9500 FT AGL.
* TRANSPORT WINDS.....EAST AROUND 5 MPH SHIFTING TO THE SOUTHWEST
IN THE AFTERNOON.
* VENTILATION INDEX...LOW (25-38) INCREASING TO MODERATE TO HIGH
(494-642) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS 46 TO 54. HIGHS 79 TO 85. NORTH
WINDS 1 TO 6 MPH.
SUNDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
46 TO 54. HIGHS 81 TO 86. WEST WINDS 1 TO 6 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 48 TO 56. HIGHS 79 TO 85. NORTHWEST
WINDS 1 TO 6 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 46 TO 54. HIGHS 77 TO 83. WEST
WINDS 1 TO 6 MPH.
WEDNESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
44 TO 52. HIGHS 76 TO 82. NORTHWEST 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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