643
WWUS85 KSLC 060919
RFWSLC

URGENT - FIRE WEATHER MESSAGE
National Weather Service Salt Lake City UT
319 AM MDT Wed Aug 6 2025

UTZ481>484-488-489-493-494-496-498-062330-
/O.CON.KSLC.FW.W.0009.000000T0000Z-250809T0300Z/
Western Ashley National Forest-Western Uintah Basin-
Southern Ashley National Forest-Tavaputs Plateau-
Manti National Forest-San Rafael Swell-Central Utah Mountains-
Henry Mountains-Color Country Mountains-Grand Staircase-
319 AM MDT Wed Aug 6 2025

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT FRIDAY FOR
WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 481, 482,
483, 484, 488, 489, 493, 494, 496, AND 498...

* AFFECTED AREA...Fire Weather Zone 481 Western Ashley National
  Forest, Fire Weather Zone 482 Western Uintah Basin, 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 493 Central Utah Mountains, Fire Weather Zone 494
  Henry Mountains, Fire Weather Zone 496 Color Country Mountains
  and Fire Weather Zone 498 Grand Staircase.

* WINDS...Southwest 10 to 20 mph with gusts up to 35 mph. Winds
  are likely to be the strongest on Thursday afternoon, with
  gusts up to 40 mph in localized areas.

* RELATIVE HUMIDITY...8 to 12 percent across most areas, except
  the central and southern mountains where minimum RH will reach
  12 to 16 percent. Poor overnight recoveries of 20 to 30 percent
  outside of higher terrain and sheltered/irrigated valleys where
  RH may reach 35 to 55 percent overnight.

* 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.

&&

$$

UTZ492-495-497-062330-
/O.CON.KSLC.FW.W.0009.000000T0000Z-250808T0300Z/
Central Utah West Desert-Color Country West Desert-Mojave Desert-
319 AM MDT Wed Aug 6 2025

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THURSDAY FOR
WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 492, 495,
AND 497...

* AFFECTED AREA...Fire Weather Zone 492 Central Utah West
  Desert, Fire Weather Zone 495 Color Country West Desert and
  Fire Weather Zone 497 Mojave Desert.

* WINDS...Southwest 10 to 20 mph with gusts up to 35 mph. Winds
  are likely to be the strongest on Thursday afternoon, with
  gusts up to 45 mph in localized areas.

* RELATIVE HUMIDITY...6 to 10 percent. Poor overnight recoveries
  of 15 to 25 percent outside of eastern 492 and southern 495
  where RH may reach 35 to 45 percent overnight.

* 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.

&&

$$

UTZ479-062330-
/O.CON.KSLC.FW.W.0009.250807T1800Z-250808T0300Z/
Wasatch Mountains-
319 AM MDT Wed Aug 6 2025

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 9 PM MDT
THURSDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE
479...

* AFFECTED AREA...Fire Weather Zone 479 Wasatch Mountains.

* WINDS...Southwest 15 to 20 mph with gusts up to 35 mph.

* RELATIVE HUMIDITY...10 to 15 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