758
WWUS86 KHNX 182143
RFWHNX
URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE HANFORD CA
243 PM PDT MON MAY 18 2026
CAZ579-580-190300-
/O.CON.KHNX.FW.W.0002.000000T0000Z-260519T0300Z/
WEST SIDE HILLS-SAN JOAQUIN VALLEY-
243 PM PDT MON MAY 18 2026
...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING
FOR LOW RELATIVE HUMIDITIES FOR THE SAN JOAQUIN VALLEY AND WEST
SIDE HILLS ALONG THE COASTAL RANGE...
* AFFECTED AREA...FIRE WEATHER ZONE 579 WEST SIDE HILLS ON THE
COASTAL RANGE. FIRE WEATHER ZONE 580 SAN JOAQUIN VALLEY.
* WIND...GUSTING TO 20 MPH.
* HUMIDITY...15% OR LESS THROUGH MONDAY EVENING.
* HIGHEST THREAT...LOW RELATIVE HUMIDITIES LEADING TO EASIER FIRE
STARTS.
* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY 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.
MCCOY
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