Land Management Forecasts
Issued by NWS Sacramento, CA
Issued by NWS Sacramento, CA
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. $$