233
WWUS85 KSLC 140320
RFWSLC

URGENT - FIRE WEATHER MESSAGE
National Weather Service Salt Lake City UT
920 PM MDT Wed Aug 13 2025

UTZ479-141130-
/O.EXP.KSLC.FW.W.0010.000000T0000Z-250814T0300Z/
/O.CON.KSLC.FW.W.0011.250814T1800Z-250815T0300Z/
Wasatch Mountains-
920 PM MDT Wed Aug 13 2025

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 9 PM MDT
THURSDAY FOR DRY THUNDERSTORMS AND GUSTY OUTFLOW WINDS FOR FIRE
WEATHER ZONE 479...
...RED FLAG WARNING HAS EXPIRED FOR WINDS AND LOW RELATIVE
HUMIDITY FOR FIRE WEATHER ZONE 479...

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

* THUNDERSTORMS...Scattered thunderstorms will form over the
  higher terrain during the afternoon through the evening. Given
  the extended period of very dry conditions with little to no
  rain, new wildfire starts are likely with any lightning.

* OUTFLOW WINDS...Gusty and erratic outflow winds up to 50 mph
  are possible with any thunderstorms.

* 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
lightning...dry fuel conditions...and gusty microburst winds will
create favorable conditions for new fire starts and extreme fire
behavior.

&&

$$

UTZ478-480>484-488-489-493-494-496-498-141130-
/O.CON.KSLC.FW.W.0011.250814T1800Z-250815T0300Z/
Salt Lake Desert-Uinta Mountains-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-
920 PM MDT Wed Aug 13 2025

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 9 PM MDT
THURSDAY FOR DRY THUNDERSTORMS AND GUSTY OUTFLOW WINDS FOR FIRE
WEATHER ZONES 478, 480, 481, 482, 483, 484, 488, 489, 493, 494,
496, AND 498...

* AFFECTED AREA...Fire Weather Zone 478 Salt Lake Desert, Fire
  Weather Zone 480 Uinta Mountains, 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.

* THUNDERSTORMS...Scattered thunderstorms will form over the
  higher terrain of Utah during the afternoon and drift into the
  adjacent valleys through the evening. Given the extended
  period of very dry conditions with little to no rain, new
  wildfire starts are likely with any lightning.

* OUTFLOW WINDS...Gusty and erratic outflow winds up to 50 mph
  are possible with any thunderstorms.

* 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
lightning...dry fuel conditions...and gusty microburst winds will
create favorable conditions for new fire starts and extreme fire
behavior.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/saltlakecity