602
WWUS86 KSTO 190256
RFWSTO
URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SACRAMENTO CA
756 PM PDT THU JUN 18 2026
CAZ121>127-200200-
/O.NEW.KSTO.FW.W.0003.260619T1200Z-260620T0200Z/
W. SHASTA COUNTY ABOVE 3000 FT-W. SHASTA COUNTY 1000-3000 FT-
SHASTA LAKE AREA & 1-5 1000-3000 FT-SHASTA METRO-
SHASTA COUNTY FOOTHILLS 1000-3000 FT-
E. SHASTA /S. CASCADES ABOVE 3000 FT-BURNEY BASIN-
756 PM PDT THU JUN 18 2026
...RED FLAG WARNING IN EFFECT FROM 5 AM TO 7 PM PDT FRIDAY FOR
THUNDERSTORMS AND STRONG OUTFLOW WINDS FOR FIRE ZONES
121,122,123,124,125,126 AND 127...
THE NATIONAL WEATHER SERVICE IN SACRAMENTO HAS ISSUED A RED FLAG
WARNING FOR THUNDERSTORMS AND STRONG OUTFLOW WINDS, WHICH IS IN
EFFECT FROM 5 AM TO 7 PM PDT FRIDAY.
* AFFECTED AREA...FIRE ZONE 121 W. SHASTA COUNTY ABOVE 3000 FT,
FIRE ZONE 122 W. SHASTA COUNTY 1000-3000 FT, FIRE ZONE 123
SHASTA LAKE AREA & 1-5 1000-3000 FT, FIRE ZONE 124 SHASTA
METRO, FIRE ZONE 125 SHASTA COUNTY FOOTHILLS 1000-3000 FT,
FIRE ZONE 126 E. SHASTA /S. CASCADES ABOVE 3000 FT AND FIRE
ZONE 127 BURNEY BASIN.
* THUNDERSTORMS...WET AND DRY THUNDERSTORMS WITH ABUNDANT
LIGHTNING.
* OUTFLOW WINDS...GUSTS UP TO 40 MPH.
* IMPACTS...LIGHTNING FROM ISOLATED DRY THUNDERSTORMS OR OUTSIDE
OF THE MAIN PRECIPITATION CORE IN WET THUNDERSTORMS CAN CREATE
NEW FIRE STARTS AND MAY COMBINE WITH STRONG OUTFLOW WINDS TO
CAUSE A FIRE TO RAPIDLY GROW. CONFIDENCE IS LOW ON EXACT
COVERAGE AND WET VS DRY, BUT LATEST FORECAST HAS INCREASED
THUNDERSTORM POTENTIAL OVERALL.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW, OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS, LOW RELATIVE HUMIDITY, AND WARM TEMPERATURES CAN
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.
HTTP://WEATHER.GOV/SACRAMENTO
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