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FLUS45 KGJT 210851
HWOGJT

Hazardous Weather Outlook
National Weather Service Grand Junction CO
251 AM MDT Thu Aug 21 2025

COZ001>014-017>023-UTZ022>025-027>029-220900-
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-
251 AM MDT Thu Aug 21 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 terrain-based storms are possible this afternoon. Storms
will be capable of producing gusty outflow winds up to 40 mph and
frequent lightning. Light to moderate rainfall will be possible in
some storms over the San Juans. Near record high temperatures
expected.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Scattered to widespread storms are expected Friday and Saturday, with
the main threats being gusty winds, lightning, and brief heavy rain.
Near record temperatures linger to this point. From Sunday onward,
chances of widespread heavy rain, along with potential flash flooding
or debris flows, will be on the increase. Temperatures will cool
substantially for early next week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

$$