Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Grand Junction CO
307 AM MDT Mon Sep 1 2025

COZ001>014-017>023-UTZ022>025-027>029-020915-
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-
307 AM MDT Mon Sep 1 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 thunderstorms develop on terrain today,
favoring the San Juans. Impacts will be limited to some gusty winds,
small hail, and brief downpours.Temperatures continue upward today
with highs nearly 5 degrees above normal. Showers will taper by
evening and quiet conditions are expected across the region.

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

Warmer and drier conditions continue, with afternoon highs hovering
nearly 5 degrees over normal until late week. Mountain showers and
thunderstorms begin to expand in coverage Tuesday and beyond.
Additional monsoonal moisture is expected to drift into the region
from the south, fueling a more active storm cycle. More widespread
storm coverage is expected by week`s end with the possibility of
additional extra-tropical moisture arriving.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

$$