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FLUS45 KRIW 130818
HWORIW

Hazardous Weather Outlook
National Weather Service Riverton WY
218 AM MDT Wed Aug 13 2025

WYZ001>020-022>030-141300-
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-
218 AM MDT Wed Aug 13 2025

This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...Today and tonight.

Critical fire weather for portions of the area due to warm
temperatures, low relative humidities, gusty winds, and thunderstorm
chances. Please see Red Flag Warnings for details. Elevated fire
weather possible many other locations.

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

Thursday...Elevated to critical fire weather, especially across
southern Wyoming.

Thursday through Sunday...A chance of afternoon and evening
thunderstorms each day, with Friday looking to have the greatest
coverage.

.SPOTTER INFORMATION STATEMENT...

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

$$