Red Flag Warning
Issued by NWS Salt Lake City, UT
Issued by NWS Salt Lake City, UT
913 WWUS85 KSLC 182204 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 404 PM MDT Wed Jun 18 2025 UTZ478-190615- /O.CON.KSLC.FW.W.0002.250619T1800Z-250621T0400Z/ Salt Lake Desert- 404 PM MDT Wed Jun 18 2025 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON THURSDAY TO 10 PM MDT FRIDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 478... * AFFECTED AREA...Fire Weather Zone 478 Salt Lake Desert. * WINDS...Southwest 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 4 percent for Thursday and Friday afternoon, with marginal overnight recovery of 20-30 percent Friday night. * 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 expected. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ UTZ482>484-489-492>498-190615- /O.CON.KSLC.FW.W.0002.250619T1800Z-250622T0400Z/ Western Uintah Basin-Southern Ashley National Forest- Tavaputs Plateau-San Rafael Swell-Central Utah West Desert- Central Utah Mountains-Henry Mountains-Color Country West Desert- Color Country Mountains-Mojave Desert-Grand Staircase- 404 PM MDT Wed Jun 18 2025 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON THURSDAY TO 10 PM MDT SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 482, 483, 484, 489, 492, 493, 494, 495, 496, 497, AND 498... * AFFECTED AREA...Fire Weather Zone 482 Western Uintah Basin, Fire Weather Zone 483 Southern Ashley National Forest, Fire Weather Zone 484 Tavaputs Plateau, Fire Weather Zone 489 San Rafael Swell, Fire Weather Zone 492 Central Utah West Desert, Fire Weather Zone 493 Central Utah Mountains, Fire Weather Zone 494 Henry Mountains, Fire Weather Zone 495 Color Country West Desert, Fire Weather Zone 496 Color Country Mountains, Fire Weather Zone 497 Mojave Desert and Fire Weather Zone 498 Grand Staircase. * WINDS...For Thursday, south to southwest winds 10 to 20 mph with gusts 30 to 35 mph, increasing on Friday to 15 to 25 mph with gusts 35 to 40 mph. The strongest winds are expected Saturday afternoon and evening, with sustained winds 20 to 30 mph with gusts 40 to 50 mph. * RELATIVE HUMIDITY...Falling into the 5 to 9 percent range each afternoon with poor overnight recovery of 15-25 percent Thursday and Friday nights. * IMPACTS...Critical fire weather conditions are expected. Any new fire starts or existing fires may spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are expected. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ For more information from the National Weather Service visit http://weather.gov/saltlakecity