286 WWUS85 KSLC 151729 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 1129 AM MDT Sun Sep 15 2019 UTZ478-492-495-161200- /O.CON.KSLC.FW.W.0020.190916T0200Z-190917T1000Z/ Salt Lake Desert-Central Utah West Desert- Color Country West Desert- 1129 AM MDT Sun Sep 15 2019 ...RED FLAG WARNING REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 4 AM MDT TUESDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 478...492 AND 495... ...THIS IS A PARTICULARLY DANGEROUS SITUATION... * AFFECTED AREA...Fire Weather Zone 478 Salt Lake Desert...Fire Weather Zone 492 Central Utah West Desert and Fire Weather Zone 495 Color Country West Desert. * WINDS...Increasingly gusty this evening and tonight from the South gusting 30 to 40 mph. Winds peak tomorrow afternoon and evening with gusts of 35 to 55 mph, before gradually decreasing after a wind switch to the northwest Monday night with gusts of 25 to 45 mph. Some locations in the West Desert may continue to gust 60 mph or greater Monday night. * RELATIVE HUMIDITY...Poor RH recovery tonight after reaching single digits earlier during the day. RH drops to between 8-15% Monday, rising Monday night with the frontal passage. * IMPACTS...This is a particularly dangerous situation due to the strength of the winds. Hot dry and windy conditions will combine to support rapid spread of fires. 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. && $$ UTZ482-489-493-494-496>498-161200- /O.CON.KSLC.FW.W.0020.190916T1600Z-190917T1000Z/ Western Uintah Basin-San Rafael Swell-Central Utah Mountains- Henry Mountains-Color Country Mountains-Mojave Desert- Grand Staircase- 1129 AM MDT Sun Sep 15 2019 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM MONDAY TO 4 AM MDT TUESDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 482...489...493...494...496...497 AND 498... * AFFECTED AREA...Fire Weather Zone 482 Western Uintah Basin... Fire Weather Zone 489 San Rafael Swell...Fire Weather Zone 493 Central Utah Mountains...Fire Weather Zone 494 Henry Mountains...Fire Weather Zone 496 Color Country Mountains... Fire Weather Zone 497 Mojave Desert and Fire Weather Zone 498 Grand Staircase. * LIGHTNING...Dry thunderstorms are possible Monday afternoon and evening. Most locations will likely not see Wetting Rains during this period. * WINDS...Outside of showers, wind gusts up to 35 mph are expected. Near showers and thunderstorms, winds will be strong and erratic with gusts possibly exceeding 50 mph. * IMPACTS...The combination of dry thunderstorms and strong winds is forecast. These conditions may lead to new fire starts and rapid spread of fires. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of lightning...dry fuel conditions...and gusty microburst winds will create favorable conditions for new fire starts and extreme fire behavior. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity