Hazardous Weather Outlook
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
591 FLUS45 KRIW 290747 HWORIW Hazardous Weather Outlook National Weather Service Riverton WY 147 AM MDT Mon Sep 29 2025 WYZ001>020-022>030-301200- 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- 147 AM MDT Mon Sep 29 2025 This Hazardous Weather Outlook is for Western and Central Wyoming. .DAY ONE...Today and Tonight. There is a 10 to 20% chance for afternoon and evening showers and thunderstorms across western portions of the forecast area. Wind gusts up to 40 mph will be the main threat. There is a 10% chance for locally heavy rain with the stronger storms. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Tuesday...Showers and thunderstorms will be possible over western portions in the afternoon, spreading east of the Divide late in the afternoon into the evening. Wind gusts up to 40 mph and locally heavy rain will again be possible with the stronger storms. Friday and Saturday...Chances for widespread precipitation and high elevation snow increase Friday and Saturday. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. $$