492
FNUS86 KSTO 122146
FWLSTO
ECCDA DISCUSSIONS FOR CALIFORNIA
NATIONAL WEATHER SERVICE SACRAMENTO CA
246 PM PDT WED AUG 12 2026
ECC005-131600-
SHASTA-TRINITY NATIONAL FOREST-
DISCUSSION FOR REDDING ECC DISPATCH
246 PM PDT WED AUG 12 2026
...ELEVATED FIRE WEATHER CONDITIONS LATE IN THE WEEK DUE TO A
SLIGHT CHANCE OF THUNDERSTORMS...
COOLER TEMPERATURES, BREEZY ONSHORE WINDS, AND SLIGHT
THUNDERSTORM CHANCES CONTINUE THROUGH THE END OF THE WEEK. DESPITE
THUNDERSTORM CHANCES FURTHER SOUTHWARD, DRY AND BREEZY CONDITIONS
PERSIST TODAY WITH AFTERNOON HUMIDITY VALUES INTO THE TEENS TO
20S EXPECTED. THUNDERSTORM CHANCES INCREASE TO AROUND 10% ACROSS
THE TRINITY ALPS, YOLLA BOLLA MOUNTAINS, SISKIYOU MOUNTAINS AND
FAR NORTHERN SHASTA COUNTY MOUNTAINS ON THURSDAY AND FRIDAY WITH
A MIX OF WET AND DRY THUNDERSTORMS POSSIBLE. THE BEST POTENTIAL IS
OVER THE SISKIYOU MOUNTAINS, WITH SOME STORMS THERE POSSIBLY
LINGERING INTO FRIDAY NIGHT. ELEVATED FIRE WEATHER CONDITIONS ARE
EXPECTED LATE IN THE WEEK AS A RESULT OF THUNDERSTORM CHANCES AND
DRY FUELS. DRIER WEATHER IS ANTICIPATED BY THE WEEKEND AS COOL
TEMPERATURES CONTINUE.
ECC007-131600-
MENDOCINO NATIONAL FOREST, SOUTHERN SACRAMENTO VALLEY, AND DELTA-
DISCUSSION FOR WILLOWS ECC DISPATCH
246 PM PDT WED AUG 12 2026
...ELEVATED FIRE WEATHER CONDITIONS LATE IN THE WEEK DUE TO A
SLIGHT CHANCE OF THUNDERSTORMS...
COOLER TEMPERATURES, BREEZY ONSHORE WINDS, AND THUNDERSTORM
CHANCES CONTINUE THROUGH THE END OF THE WEEK. A LOW CHANCE FOR
ISOLATED DRY THUNDERSTORMS IN THE VALLEY AND COAST RANGE IS
FORECAST ON THURSDAY MORNING, BUT CHANCES REMAIN LESS THAN 5%.
THUNDERSTORM CHANCES UP TO 10% THEN CONTINUE ALONG THE NORTHERN COAST
RANGE ON THURSDAY AND FRIDAY WITH A MIX OF WET AND DRY
THUNDERSTORMS POSSIBLE. ELEVATED FIRE WEATHER CONDITIONS ARE
EXPECTED LATE IN THE WEEK AS A RESULT OF THUNDERSTORM CHANCES AND
DRY FUELS. DRIER WEATHER IS ANTICIPATED BY THE WEEKEND AS COOL
TEMPERATURES CONTINUE.
ECC008-131600-
RED BLUFF AND OROVILLE-
DISCUSSION FOR RED BLUFF AND OROVILLE ECC DISPATCH
246 PM PDT WED AUG 12 2026
COOLER TEMPERATURES AND BREEZY ONSHORE WINDS CONTINUE THROUGH
FRIDAY. THERE IS NOW A LESS THAN 5% CHANCE FOR ISOLATED DRY
THUNDERSTORMS THROUGH THURSDAY IN THE VALLEY, NORTHEAST FOOTHILLS
AND FAR NORTHERN SIERRA, WITH BETTER PROBABILITIES REMAINING NORTH
AND WEST OF THE AREA OR SHIFTING TO THE SIERRA SOUTH OF
INTERSTATE 80. DRY AND SLIGHTLY WARMER WEATHER IS EXPECTED FRIDAY
THROUGH THE WEEKEND.
ECC011-131600-
TAHOE NATIONAL FOREST-
DISCUSSION FOR GRASS VALLEY ECC DISPATCH
246 PM PDT WED AUG 12 2026
...RED FLAG WARNING FROM 5AM PDT UNTIL 9PM PDT THURSDAY FOR SIERRA
FIRE ZONE 136 & 139 ELEVATIONS ABOVE 5000 FEET DUE TO THUNDERSTORMS
AND GUSTY OUTFLOW WINDS...
...FIRE WEATHER WATCH IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY
EVENING FOR THE POTENTIAL FOR NEW FIRE STARTS DUE TO LIGHTNING FOR
THE EASTERN SLOPE OF THE SIERRA AND TAHOE BASIN...
A RED FLAG WARNING IS IN EFFECT FROM 5 AM UNTIL 9 PM THURSDAY FOR
SIERRA LOCATIONS ABOVE 5000 FEET SOUTH OF INTERSTATE 80 AS
THUNDERSTORM CHANCES CONTINUE AROUND 15-30%. A LESS THAN 5%
CHANCE FOR ISOLATED DRY THUNDERSTORMS IN THE VALLEY REMAINS WITH
5-10% PROBABILITIES IN THE SIERRA FOOTHILLS. A WET/DRY MIX OF
THUNDERSTORMS WITH GUSTY OUTFLOW WINDS IS THE PRIMARY RISK AND
BRINGS THE POTENTIAL FOR NEW FIRE STARTS, ALTHOUGH SOME WETTER
STORMS ALONG THE EAST SIERRA SLOPE MAY POSE A FLASH FLOODING
THREAT, ESPECIALLY TO ONGOING FIRES. MOUNTAIN THUNDERSTORM CHANCES
WILL CONTINUE THROUGH FRIDAY AFTERNOON, WITH CHANCES FALLING
BELOW 10% BY THE WEEKEND. THE VALLEY AND UPPER FOOTHILLS THREAT
HAS LESSENED BUT STILL NONZERO GIVEN THE LOW CONFIDENCE NATURE OF
THE OVERALL FORECAST.
ECC015-131600-
STANISLAUS NATIONAL FOREST-
DISCUSSION FOR SAN ANDREAS ECC DISPATCH
246 PM PDT WED AUG 12 2026
...RED FLAG WARNING FROM 5AM PDT UNTIL 9PM PDT THURSDAY FOR SIERRA
FIRE ZONE 136 & 139 ELEVATIONS ABOVE 5000 FEET DUE TO THUNDERSTORMS
AND GUSTY OUTFLOW WINDS...
A RED FLAG WARNING IS IN EFFECT FROM 5 AM UNTIL 9 PM THURSDAY FOR
SIERRA LOCATIONS ABOVE 5000 FEET SOUTH OF INTERSTATE 80 AS
THUNDERSTORM CHANCES CONTINUE AROUND 15-30%. A LESS THAN 5%
CHANCE FOR ISOLATED DRY THUNDERSTORMS IN THE VALLEY REMAINS WITH
5-10% PROBABILITIES IN THE SIERRA FOOTHILLS. A WET/DRY MIX OF
THUNDERSTORMS WITH GUSTY OUTFLOW WINDS IS THE PRIMARY RISK AND
BRINGING THE POTENTIAL FOR NEW FIRE STARTS, ALTHOUGH SOME WETTER
STORMS ALONG THE EAST SIERRA SLOPE MAY POSE A FLASH FLOODING
THREAT. MOUNTAIN THUNDERSTORM CHANCES WILL CONTINUE THROUGH FRIDAY
AFTERNOON, WITH CHANCES FALLING BELOW 10% BY THE WEEKEND. THE
VALLEY AND UPPER FOOTHILLS THREAT HAS LESSENED BUT STILL NONZERO
GIVEN THE LOW CONFIDENCE NATURE OF THE OVERALL FORECAST.
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