840
WWUS85 KSLC 172038
RFWSLC

URGENT - FIRE WEATHER MESSAGE
National Weather Service Salt Lake City UT
238 PM MDT Tue Jun 17 2025

UTZ478-180445-
/O.NEW.KSLC.FW.W.0002.250619T1800Z-250621T0400Z/
Salt Lake Desert-
238 PM MDT Tue Jun 17 2025

...RED FLAG WARNING IN EFFECT FROM NOON THURSDAY TO 10 PM MDT
FRIDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE
478...

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 noon Thursday to 10 PM MDT Friday.

* AFFECTED AREA...Fire Weather Zone 478 Salt Lake Desert.

* WINDS...South to southwest 10 to 20 mph with gusts 30 to 35 mph
  Thursday and Friday afternoons. Winds will diminish after sunset
  Thursday night before picking up again by midday Friday.

* RELATIVE HUMIDITY...falling into the 5 to 9 percent range
  Thursday and Friday afternoons, 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>498-180445-
/O.NEW.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-
238 PM MDT Tue Jun 17 2025

...RED FLAG WARNING 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...

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 noon Thursday to 10 PM MDT Saturday.

* 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 and Friday, south to southwest winds 10 to
  20 mph with gusts 30 to 35 mph each afternoon and Evening.
  Stronger winds are expected Saturday afternoon and evening, with
  sustained 20 to 30 mph with gusts in excess of 40 mph.

* RELATIVE HUMIDITY...falling into the 5 to 9 percent range each
  afternoon with poor overnight recovery of 20-30 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