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FLUS45 KRIW 040840
HWORIW

Hazardous Weather Outlook
National Weather Service Riverton WY
240 AM MDT Fri Jul 4 2025

WYZ001>020-022>030-051245-
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-
240 AM MDT Fri Jul 4 2025

This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...Today and tonight.

Multiple rounds of showers and thunderstorms will move through the
state today. The first round is expected to begin developing by the
late morning with the next following shortly behind during the early
afternoon. A later round develops by the late afternoon lingering
into the late evening hours. A few isolated strong to severe storms
cannot be ruled out. These stronger storms may be capable of
producing small hail, heavy downpours, and strong gusty winds.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Saturday...Thunderstorms develop once again in the afternoon with
coverage being more limited in nature. Convection chances look to
remain mainly across central and northern WY. Some strong to severe
storms will be possible, especially across the eastern Bighorn Basin
into Johnson and Natrona Counties. These strong to severe storms will
be capable of producing large hail, strong gusty winds, and an
isolated tornado or two.

Sunday through Thursday...Drier and warmer weather is expected to
develop and prevail across the region. This will likely lead to
increased chances for elevated fire weather conditions for much of
the state.

.SPOTTER INFORMATION STATEMENT...

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

$$