612
WWUS85 KSLC 170253
RFWSLC
URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
853 PM MDT SAT MAY 16 2026
UTZ489-494-495-170400-
/O.EXP.KSLC.FW.W.0002.000000T0000Z-260517T0300Z/
SAN RAFAEL SWELL-HENRY MOUNTAINS-COLOR COUNTRY WEST DESERT-
853 PM MDT SAT MAY 16 2026
...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR WIND
AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 489, 494, AND
495...
HUMIDITIES HAVE ALREADY INCREASED ABOVE 15% WHILE WINDS CONTINUE
TO DECREASE TONIGHT ACROSS PORTIONS OF SOUTHWEST AND EAST-CENTRAL
UTAH. WITH CRITICAL FIRE WEATHER CONDITIONS DIMINISHING, THE RED
FLAG WARNING WILL BE ALLOWED TO EXPIRE.
UTZ497-498-171800-
/O.CON.KSLC.FW.W.0002.000000T0000Z-260518T0300Z/
MOJAVE DESERT-GRAND STAIRCASE-
853 PM MDT SAT MAY 16 2026
...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT SUNDAY FOR
WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 497 AND
498...
* AFFECTED AREA...FIRE WEATHER ZONE 497 MOJAVE DESERT AND FIRE
WEATHER ZONE 498 GRAND STAIRCASE.
* WINDS...WEST 20 TO 30 MPH WITH GUSTS UP TO 45 MPH. WINDS WILL
DECREASE OVERNIGHT AND INCREASE AGAIN FOR SUNDAY AFTERNOON.
* RELATIVE HUMIDITY...AS LOW AS 10 PERCENT.
* IMPACTS...CRITICAL FIRE WEATHER CONDITIONS ARE EXPECTED. ANY
NEW FIRE STARTS OR EXISTING FIRES MAY SPREAD RAPIDLY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR ARE IMMINENT. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.
FOR MORE INFORMATION FROM THE NATIONAL WEATHER SERVICE VISIT
HTTP://WEATHER.GOV/SALTLAKECITY
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