558
WWUS86 KSTO 121651
RFWSTO
URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SACRAMENTO CA
951 AM PDT SAT SEP 12 2026
...RED FLAG WARNING NOW IN EFFECT UNTIL 5 PM PDT MONDAY DUE TO WIND
AND LOW RELATIVE HUMIDITY FOR A PORTION OF NORTHERN CALIFORNIA...
CAZ124-129-142>150-140015-
/O.EXT.KSTO.FW.W.0005.260912T1800Z-260915T0000Z/
SHASTA METRO-SIERRA (TEHAMA-PLUMAS) 1000-3000 FT-N. SAC VALLEY IN
TEHAMA COUNTY-GLENN/COLUSA COAST RANGE ABOVE 3000 FT-CENTRAL
GLENN CO & INTERSTATE 5-EASTERN GLENN COUNTY-BUTTE COUNTY BELOW
1000 FT-W. GLENN/COLUSA FOOTHILLS 1000-3000 FT-CENTRAL COLUSA
COUNTY INCL. I-5-EASTERN COLUSA COUNTY-SUTTER/YUBA COUNTIES BELOW
1000 FT-
951 AM PDT SAT SEP 12 2026
..RED FLAG WARNING NOW IN EFFECT UNTIL 5 PM PDT MONDAY
* AFFECTED AREA...PORTIONS OF THE SACRAMENTO VALLEY AND ADJACENT
FOOTHILLS.
* TIMING...UNTIL 5 PM PDT MONDAY.
* WINDS...GUSTS 20 TO 35 MPH. SOUTH TO SOUTHWEST WINDS THROUGH
SATURDAY AFTERNOON. WINDS SHIFT OUT OF THE NORTH DURING THE DAY ON
SUNDAY, BECOMING GUSTY BY THE EVENING AND THROUGH MONDAY MORNING.
* RELATIVE HUMIDITY...RELATIVE HUMIDITY BETWEEN 10 TO 25 PERCENT.
* IMPACTS...ANY FIRES THAT DEVELOP WILL SPREAD RAPIDLY. OUTDOOR
BURNING IS NOT RECOMMENDED.
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.
FORREST
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