646 
FLUS45 KGJT 151024
HWOGJT

Hazardous Weather Outlook
National Weather Service Grand Junction CO
424 AM MDT Mon Sep 15 2025

COZ001>014-017>023-UTZ022>025-027>029-161030-
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 Mon Sep 15 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.

Isolated showers and a thunderstorm or two is possible across the
northern mountains and along the northern border with Wyoming, but 
the probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Scattered showers and thunderstorms are possible Tuesday as a cool
front and disturbance moves across the north. Northeast Utah and
northwest to west-central Colorado mountains and higher valleys will
be favored with isolated activity possible in the lower valleys. 
Isolated storms are possible Wednesday afternoon along the Divide
Mountains with dry weather expected to return Thursday. Moisture 
potentially increases this weekend but confidence on timing and 
extent is low at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

$$