weather.gov     
National Weather Service

Watches, Warnings & Advisories
NWS Homepage

Red Flag Warning


URGENT - FIRE WEATHER MESSAGE
National Weather Service Salt Lake City UT
158 PM MDT Thu Jul 3 2025

UTZ497-498-041000-
/O.UPG.KSLC.FW.A.0002.250704T1800Z-250705T0300Z/
/O.EXA.KSLC.FW.W.0004.250704T1800Z-250705T0300Z/
Mojave Desert-Grand Staircase-
158 PM MDT Thu Jul 3 2025

...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT FRIDAY FOR
WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 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 to 9 PM MDT Friday. The Fire Weather Watch is no
longer in effect.

* AFFECTED AREA...Fire Weather Zone 497 Mojave Desert and Fire
  Weather Zone 498 Grand Staircase.

* WINDS...Southwest 15 to 25 mph with gusts 30 to 35 mph.

* RELATIVE HUMIDITY...10 to 15 percent.

* IMPACTS...Critical fire weather conditions are possible. 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.

&&

$$

URGENT - FIRE WEATHER MESSAGE
National Weather Service Las Vegas NV
1252 PM PDT Thu Jul 3 2025

...A RED FLAG WARNING IS IN EFFECT FRIDAY FOR FOR SOUTHERN NEVADA AND
NORTHWESTERN ARIZONA FOR STRONG WINDS AND LOW HUMIDITY...

AZZ101-102-NVZ461>466-041200-
/O.CON.KVEF.FW.W.0004.250704T1800Z-250705T0300Z/
Lake Mead NRA/Colorado River-AZ side-
Northwest Deserts/Northwest Plateau-Lincoln County/Ely Dispatch-
Nye County Deserts/Las Vegas Dispatch-Sheep Range-
Spring Mountains-
Clark and SW Lincoln County Deserts/Las Vegas Dispatch-
Lake Mead NRA/Colorado River-NV side-
1252 PM PDT Thu Jul 3 2025 /1252 PM MST Thu Jul 3 2025/

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM PDT /11 AM MST/
TO 8 PM PDT /8 PM MST/ FRIDAY FOR STRONG WINDS AND LOW HUMIDITY
FOR LINCOLN COUNTY...

* AFFECTED AREA...In Nevada...Fire weather zone 461, 462, 463,
  465, and 466. In Arizona...Fire weather zone 101 and 102.

* TIMING...11 AM to 8 PM PDT.

* WIND...Southwest winds 15 to 25 mph with gusts to 35 mph.

* HUMIDITY...8 to 15 percent.

* IMPACTS...any fires that develop will likely spread rapidly.
  Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now...or will shortly. A combination of
strong winds...low relative humidity...and warm temperatures can
contribute to extreme fire behavior.

&&

$$

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE