366
WWUS85 KSLC 040915
RFWSLC

URGENT - FIRE WEATHER MESSAGE
National Weather Service Salt Lake City UT
315 AM MDT Mon Aug 4 2025

UTZ483-484-488-489-492-494-495-497-498-042315-
/O.CON.KSLC.FW.W.0009.250804T1800Z-250807T0300Z/
Southern Ashley National Forest-Tavaputs Plateau-
Manti National Forest-San Rafael Swell-Central Utah West Desert-
Henry Mountains-Color Country West Desert-Mojave Desert-
Grand Staircase-
315 AM MDT Mon Aug 4 2025

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT
WEDNESDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER
ZONES 483, 484, 488, 489, 492, 494, 495, 497, AND 498...

* AFFECTED AREA...Fire Weather Zone 483 Southern Ashley National
  Forest, Fire Weather Zone 484 Tavaputs Plateau, Fire Weather
  Zone 488 Manti National Forest, Fire Weather Zone 489 San
  Rafael Swell, Fire Weather Zone 492 Central Utah West Desert,
  Fire Weather Zone 494 Henry Mountains, Fire Weather Zone 495
  Color Country West Desert, Fire Weather Zone 497 Mojave Desert
  and Fire Weather Zone 498 Grand Staircase.

* WINDS...Southwest 10 to 20 mph with gusts up to 35 mph. Gusts
  around 40 mph possible Monday afternoon across zones 492 and
  495.

* RELATIVE HUMIDITY...5 to 10 percent Monday, increasing to 8 to
  12 percent by Wednesday. Poor overnight recoveries near 15 to
  20 percent except increasing to 25 to 35 percent 498 and
  southern 495 Tuesday 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 either occurring now...or are imminent. A combination of
strong winds...low relative humidity...and warm temperatures can
contribute to extreme fire behavior.

&&

$$

UTZ478-479-481-042315-
/O.CON.KSLC.FW.W.0009.250804T1800Z-250805T0300Z/
Salt Lake Desert-Wasatch Mountains-Western Ashley National Forest-
315 AM MDT Mon Aug 4 2025

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT
THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER
ZONES 478, 479, AND 481...

* AFFECTED AREA...Fire Weather Zone 478 Salt Lake Desert, Fire
  Weather Zone 479 Wasatch Mountains and Fire Weather Zone 481
  Western Ashley National Forest.

* WINDS...Southwest 15 to 25 mph with gusts up to 40 mph across
  areas south of I-80 and southwest 5 to 10 mph with gusts to
  around 20 mph north of I-80.

* RELATIVE HUMIDITY...5 to 9 percent south of I-80, and 10 to 15
  percent north.

* 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.

&&

$$

UTZ493-496-042315-
/O.CON.KSLC.FW.W.0009.250804T1800Z-250806T0300Z/
Central Utah Mountains-Color Country Mountains-
315 AM MDT Mon Aug 4 2025

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT
TUESDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES
493 AND 496...

* AFFECTED AREA...Fire Weather Zone 493 Central Utah Mountains
  and Fire Weather Zone 496 Color Country Mountains.

* WINDS...Southwest 10 to 20 mph with gusts up to 35 mph.

* RELATIVE HUMIDITY...6 to 12 percent with poor overnight
  recoveries near 15 to 25 percent most locations, higher in
  sheltered/irrigated valleys.

* 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.

&&

$$

UTZ482-042315-
/O.CON.KSLC.FW.W.0009.250804T1800Z-250806T0300Z/
Western Uintah Basin-
315 AM MDT Mon Aug 4 2025

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT
TUESDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE
482...

* AFFECTED AREA...Fire Weather Zone 482 Western Uintah Basin.

* WINDS...Southwest to west 10 to 20 mph with gusts up to 35 mph.

* RELATIVE HUMIDITY...5 to 9 percent with very poor overnight
  recoveries near 15 to 20 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