Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Grand Junction CO
424 AM MDT Sat Sep 6 2025
COZ001>014-017>023-UTZ022>025-027>029-071030-
Lower Yampa River Basin-Central Yampa River Basin-
Roan and Tavaputs Plateaus-Elkhead and Park Mountains-
Upper Yampa River Basin-Grand Valley-Debeque to Silt Corridor-
Central Colorado River Basin-Grand and Battlement Mesas-
Gore and Elk Mountains/Central Mountain Valleys-
Central Gunnison and Uncompahgre River Basin-
West Elk and Sawatch Mountains-Flat Tops-Upper Gunnison River Valley-
Uncompahgre Plateau and Dallas Divide-Northwest San Juan Mountains-
Southwest San Juan Mountains-Paradox Valley/Lower Dolores River-
Four Corners/Upper Dolores River-Animas River Basin-
San Juan River Basin-Southeast Utah-Eastern Uinta Mountains-
Eastern Uinta Basin-Tavaputs Plateau-Arches/Grand Flat-
La Sal and Abajo Mountains-Canyonlands/Natural Bridges-
424 AM MDT Sat Sep 6 2025
This Hazardous Weather Outlook is for northwest Colorado, southwest
Colorado, west central Colorado, east central Utah, northeast Utah
and southeast Utah.
.DAY ONE...Today and tonight.
Expect widespread showers and thunderstorms across the region today.
Threats from these storms are gusty winds, lightning and periods of
heavy rain leading to localized flash flooding.
.DAYS TWO THROUGH SEVEN...Sunday through Friday.
Showers and thunderstorms across the region again Sunday will be more
scattered as the region begins to somewhat dry out. These showers
and thunderstorms will become more isolated to scattered across the
region Monday through mid week. Late in the week looks to have
another uptick in showers and thunderstorms.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected today or tonight, however
spotters are encouraged to relay rainfall amounts or any observed
flooding to the National Weather Service in Grand Junction.
$$
Hazardous Weather Outlook
National Weather Service Riverton WY
148 AM MDT Sat Sep 6 2025
WYZ001>020-022>030-071200-
Yellowstone National Park-Absaroka Mountains-Cody Foothills-
North Bighorn Basin-Southwest Bighorn Basin-Southeast Bighorn Basin-
Owl Creek and Bridger Mountains-Bighorn Mountains West-
Bighorn Mountains Southeast-Northeast Johnson County-
Southeast Johnson County-Teton and Gros Ventre Mountains-
Jackson Hole-Wind River Mountains West-Wind River Mountains East-
Upper Wind River Basin-Wind River Basin-Lander Foothills-
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-Casper Mountain-Star Valley-
Salt River and Wyoming Ranges-Upper Green River Basin Foothills-
Upper Green River Basin-South Lincoln County-
Rock Springs and Green River-Flaming Gorge-East Sweetwater County-
148 AM MDT Sat Sep 6 2025
This Hazardous Weather Outlook is for Western and Central Wyoming.
.DAY ONE...Today and Tonight.
Scattered thunderstorms possible over areas west of the Divide
through the afternoon and evening, along and west of a Jackson-to-
Wamsutter line. Elevated fire weather conditions for areas east of
the Divide due to low relative humidity.
.DAYS TWO THROUGH SEVEN...Sunday through Friday.
Sunday...Isolated to widely scattered (10-30% chance) showers and
thunderstorms will be possible across the forecast area.
Tuesday through Thursday...The chance for widespread precipitation
returns to the forecast area.
.SPOTTER INFORMATION STATEMENT...
Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.
$$
