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Home Return to list Fire Weather Warning 0002 Issued by the Salt Lake City Forecast Office
Action: New Issued At: 2026-05-15 12:07:49 374 WWUS85 KSLC 151707 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 1107 AM MDT Fri May 15 2026 UTZ489-494-495-161715- /O.NEW.KSLC.FW.W.0002.260516T1700Z-260517T0300Z/ San Rafael Swell-Henry Mountains-Color Country West Desert- 1107 AM MDT Fri May 15 2026 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 9 PM MDT SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 489, 494, AND 495... The National Weather Service in Salt Lake City has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 11 AM to 9 PM MDT Saturday. * AFFECTED AREA...Fire Weather Zone 489 San Rafael Swell, Fire Weather Zone 494 Henry Mountains and Fire Weather Zone 495 Color Country West Desert. * WINDS...Southwest 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 12 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. && $$ UTZ497-498-161715- /O.NEW.KSLC.FW.W.0002.260516T1700Z-260518T0300Z/ Mojave Desert-Grand Staircase- 1107 AM MDT Fri May 15 2026 ...RED FLAG WARNING IN EFFECT FROM 11 AM SATURDAY TO 9 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 497 AND 498... The National Weather Service in Salt Lake City has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 11 AM Saturday to 9 PM MDT Sunday. * AFFECTED AREA...Fire Weather Zone 497 Mojave Desert and Fire Weather Zone 498 Grand Staircase. * WINDS...West 15 to 25 mph with gusts up to 35 mph on Saturday and up to 45 mph on Sunday. * RELATIVE HUMIDITY...As low as 10 percent. * IMPACTS...Critical fire weather conditions are expected. Any new fire starts or existing fires may spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ For more information from the National Weather Service visit http://weather.gov/saltlakecity Action: Continued Issued At: 2026-05-15 23:46:16 982 WWUS85 KSLC 160445 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 1045 PM MDT Fri May 15 2026 UTZ489-494-495-161945- /O.CON.KSLC.FW.W.0002.260516T1700Z-260517T0300Z/ San Rafael Swell-Henry Mountains-Color Country West Desert- 1045 PM MDT Fri May 15 2026 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 9 PM MDT SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 489, 494, AND 495... * AFFECTED AREA...Fire Weather Zone 489 San Rafael Swell, Fire Weather Zone 494 Henry Mountains and Fire Weather Zone 495 Color Country West Desert. * WINDS...Southwest 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 12 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. && $$ UTZ497-498-161945- /O.CON.KSLC.FW.W.0002.260516T1700Z-260518T0300Z/ Mojave Desert-Grand Staircase- 1045 PM MDT Fri May 15 2026 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM SATURDAY TO 9 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 497 AND 498... * AFFECTED AREA...Fire Weather Zone 497 Mojave Desert and Fire Weather Zone 498 Grand Staircase. * WINDS...West 15 to 25 mph with gusts up to 35 mph on Saturday and up to 45 mph on Sunday. * RELATIVE HUMIDITY...As low as 10 percent. * IMPACTS...Critical fire weather conditions are expected. Any new fire starts or existing fires may spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ For more information from the National Weather Service visit http://weather.gov/saltlakecity Action: Continued Issued At: 2026-05-16 12:29:23 959 WWUS85 KSLC 161729 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 1129 AM MDT Sat May 16 2026 UTZ489-494-495-170300- /O.CON.KSLC.FW.W.0002.000000T0000Z-260517T0300Z/ San Rafael Swell-Henry Mountains-Color Country West Desert- 1129 AM MDT Sat May 16 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 489, 494, AND 495... * AFFECTED AREA...Fire Weather Zone 489 San Rafael Swell, Fire Weather Zone 494 Henry Mountains and Fire Weather Zone 495 Color Country West Desert. * WINDS...Southwest 15 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 12 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. && $$ UTZ497-498-171130- /O.CON.KSLC.FW.W.0002.000000T0000Z-260518T0300Z/ Mojave Desert-Grand Staircase- 1129 AM MDT Sat May 16 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 497 AND 498... * AFFECTED AREA...Fire Weather Zone 497 Mojave Desert and Fire Weather Zone 498 Grand Staircase. * WINDS...West 20 to 30 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 10 percent. * IMPACTS...Critical fire weather conditions are expected. Any new fire starts or existing fires may spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ For more information from the National Weather Service visit http://weather.gov/saltlakecity Action: Continued Issued At: 2026-05-16 21:53:41 903 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 Action: Continued Issued At: 2026-05-17 12:05:21 261 WWUS85 KSLC 171704 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 1104 AM MDT Sun May 17 2026 UTZ497-498-180300- /O.CON.KSLC.FW.W.0002.000000T0000Z-260518T0300Z/ Mojave Desert-Grand Staircase- 1104 AM MDT Sun May 17 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING 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. * 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 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||