105 

WWUS86 KHNX 181348

RFWHNX



URGENT - FIRE WEATHER MESSAGE

National Weather Service Hanford CA

648 AM PDT Mon May 18 2026





CAZ579-580-182200-

/O.CON.KHNX.FW.W.0002.000000T0000Z-260519T0300Z/

West Side Hills-San Joaquin Valley-

648 AM PDT Mon May 18 2026



...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING

FOR GUSTY WINDS AND 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 35 MPH.



* HUMIDITY...15% OR LESS THROUGH MONDAY EVENING.



* HIGHEST THREAT...FAST-MOVING GRASS FIRES



* 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.



&&



$$



EW