Hazard Report Provided By forecast.weather.gov

Hazardous Weather Outlook
National Weather Service Riverton WY
159 AM MDT Wed Mar 18 2026

WYZ001>020-022>030-191300-
Yellowstone National Park-Absaroka Mountains-Cody Foothills-
North Bighorn Basin-Southwest Bighorn Basin-Southeast Bighorn Basin-
Owl Creek and Bridger Mountains-Bighorn Mountains West-
Bighorn Mountains Southeast-Northeast Johnson County-
Southeast Johnson County-Teton and Gros Ventre Mountains-
Jackson Hole-Wind River Mountains West-Wind River Mountains East-
Upper Wind River Basin-Wind River Basin-Lander Foothills-
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-Casper Mountain-Star Valley-
Salt River and Wyoming Ranges-Upper Green River Basin Foothills-
Upper Green River Basin-South Lincoln County-
Rock Springs and Green River-Flaming Gorge-East Sweetwater County-
159 AM MDT Wed Mar 18 2026

...Red Flag Warning in effect for much of central and southern
Wyoming from this afternoon through Saturday evening...

This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...Today and tonight.

A combination of gusty wind, low humidity and dry fuels will bring
elevated to critical fire weather. Please see Red Flag Warnings
and forecasts for details.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Thursday through Saturday....Elevated to critical fire weather
continues across much of the area, with the most impactful on
Saturday. Again, please see Red Flag Warnings and forecasts for
details. All time record high March temperatures likely at many
locations.

Sunday...Elevated to critical fire weather possible in southern
Wyoming.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

$$

URGENT - FIRE WEATHER MESSAGE
National Weather Service Riverton WY
155 AM MDT Wed Mar 18 2026

WYZ276-282-283-287-190000-
/O.CON.KRIW.FW.W.0004.260318T1800Z-260322T0300Z/
Cody Foothills-South Bighorn Basin/Worland BLM-
Upper Wind River Basin/Wind River Basin-Owl Creek Mountains-
155 AM MDT Wed Mar 18 2026

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT
SATURDAY...

* IMPACTS: Low Humidities...Unseasonably Warm Temperatures...and
  Strong Gusty Winds could cause erratic fire behavior.

* AFFECTED AREA:
  In Central WY Fire Zone....283.
  In North Central WY Fire Zones...276...282...287.

* COUNTIES AFFECTED:
  In Central WY...Fremont.
  In North Central WY...Hot Springs...Park...Washakie.

* WIND: Southwest 20 to 30 mph with gusts up to 45 mph today and
  Saturday, southwest 15 to 25 mph with gusts to 30 mph Thursday
  and Friday.

* HUMIDITY: 10 to 15 percent.

* TEMPERATURES: Highs in 70s today, the upper 70s to lower 80s
  Thursday through Saturday.

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.

&&

$$

Hazard Report Provided By forecast.weather.gov