Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Grand Junction CO
326 AM MDT Sat Jul 12 2025
COZ001>014-017>023-UTZ022>025-027>029-130930-
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-
326 AM MDT Sat Jul 12 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.
Hot and dry conditions will persist. Terrain based showers and
thunderstorms along the Divide are possible this afternoon with dry
lightning and outflows winds up to 50 mph possible under collapsing
storms. Wildfire smoke will remain present across the southern half
of the CWA.
.DAYS TWO THROUGH SEVEN...Sunday through Friday.
Hot and dry conditions will continue into next week. Afternoon
showers and storms on terrain will remain in the forecast, becoming
more widespread early next week. Possible dry lightning and gusty
outflow winds will continue as a threat to safety.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
908 AM MDT Fri Jul 11 2025
COZ030>051-121515-
Jackson County Below 9000 Feet-
West Jackson and West Grand Counties Above 9000 Feet-
Grand and Summit Counties Below 9000 Feet-
South and East Jackson/Larimer/North and Northeast Grand/
Northwest Boulder Counties Above 9000 Feet-
South and Southeast Grand/West Central and Southwest Boulder/
Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet-Larimer and Boulder Counties Between 6000 and 9000 Feet-
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Central and Southeast Park County-
Larimer County Below 6000 Feet/Northwest Weld County-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield
County-
North Douglas County Below 6000 Feet/Denver/West Adams and
Arapahoe Counties/East Broomfield County-
Elbert/Central and East Douglas Counties Above 6000 Feet-
Northeast Weld County-Central and South Weld County-Morgan County-
Central and East Adams and Arapahoe Counties-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Logan County-Washington County-Sedgwick County-Phillips County-
908 AM MDT Fri Jul 11 2025
This hazardous weather outlook is for northeast and north central
Colorado.
.DAY ONE...Today and Tonight
Scattered to numerous thunderstorms are expected to develop this
afternoon behind a cold front, with heavy rainfall and damaging
winds being of greatest concern, and an isolated threat of large
hail in the stronger, more organized storms. The greatest
moisture is expected over the north central and northeastern
portion of the forecast area (generally north of I-70) where dew
points are already in the mid 50s this morning, and expected to
increase behind the approaching cold front, where dew points are
currently in the 60s. Forecast soundings indicate PWATs increasing
to ~ 1", bringing them to between 100-130% of normal through
tonight across the far northeast corner, with a decreasing
gradient towards the foothills. There is less certainty with how
far west the higher moisture makes it, but there is potential for
the heavy rainfall to make it as far west as the urban corridor.
The heaviest rainfall threat is expected to diminish from west to
east, with showers and thunderstorms sticking around through late
tonight.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday
Scattered afternoon thunderstorms are expected on Saturday and
Sunday over the higher terrain, with some capable of spilling onto
the plains on Saturday. More of the same will be in store into
next week, with temperatures expected to remain in the 90s for the
first half of next week, and a short reprieve by mid-week, when
high temperatures will be in the 70s/80s for the lower elevations
as widespread showers and storms will return to the forecast area.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed today or tonight, but any
observations of severe hail/wind or heavy rainfall reports will be
appreciated.
$$
