424
WWUS86 KSTO 131947
RFWSTO
URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SACRAMENTO CA
1247 PM PDT THU AUG 13 2026
CAZ136-139-140400-
/O.CON.KSTO.FW.W.0004.000000T0000Z-260814T0400Z/
SIERRA (EL DORADO-AMADOR) ABOVE 5000 FT-SIERRA (CAL-
TUO) ABOVE 5000 FT-
1247 PM PDT THU AUG 13 2026
...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING
FOR THUNDERSTORMS AND STRONG OUTFLOW WINDS FOR FIRE ZONES 136 AND
139...
* AFFECTED AREA...FIRE ZONE 136 SIERRA (EL DORADO-AMADOR) ABOVE
5000 FT AND FIRE ZONE 139 SIERRA (CAL-TUO) ABOVE 5000 FT.
* THUNDERSTORMS...ISOLATED TO SCATTERED COVERAGE OF A MIX OF WET
AND DRY THUNDERSTORMS EXPECTED. LIGHTNING STRIKES MAY ALSO
OCCUR OUTSIDE OF MAIN PRECIPITATION CORES.
* OUTFLOW WINDS...GUSTY AND ERRATIC OUTFLOW WINDS COULD OCCUR
NEAR ANY THUNDERSTORM DEVELOPMENT.
* IMPACTS...LIGHTNING CAN CREATE NEW FIRE STARTS AND MAY COMBINE
WITH STRONG OUTFLOW WINDS TO CAUSE A FIRE TO RAPIDLY GROW IN
SIZE AND INTENSITY.
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.
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