Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
822 AM MDT Fri Jul 18 2025
COZ030>051-191430-
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-
822 AM MDT Fri Jul 18 2025
This hazardous weather outlook is for northeast and north central
Colorado.
.DAY ONE...Today and Tonight
Scattered showers and thunderstorms are expected to develop over
the higher elevations this afternoon and spread east across the
plains. With increasing instability/shear values expected over
portions of the northeastern corner, there is an isolated threat
that developing storms may produce some large hail and severe wind
gusts across the area if the modest CIN can be overcome.
Instability will be lacking over the higher terrain and urban
corridor today, but DCAPE values are expected to reach upwards of
1500 J/kg this afternoon, which would be conducive to stronger
downdraft potential and a few stronger to severe wind gusts
developing. With fairly weak winds aloft and PWATs slightly above
normal, we could see a few slower moving storms produce brief
heavy rainfall, generally over the mountains and foothills where
moisture is greatest.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday
Afternoon and evening showers and thunderstorms are expected each
day through the weekend, with the best chance being on Saturday.
For early next week, very warm and drier weather is expected.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed today or tonight.
$$
Hazardous Weather Outlook
National Weather Service North Platte NE
427 PM CDT Fri Jul 18 2025
NEZ004>010-022>029-035>038-056>059-069>071-094-192130-
Sheridan-Eastern Cherry-Keya Paha-Boyd-Brown-Rock-Holt-Garden-Grant-
Hooker-Thomas-Blaine-Loup-Garfield-Wheeler-Arthur-McPherson-Logan-
Custer-Deuel-Keith-Perkins-Lincoln-Chase-Hayes-Frontier-
Western Cherry-
427 PM CDT Fri Jul 18 2025 /327 PM MDT Fri Jul 18 2025/
This Hazardous Weather Outlook is for portions of western and north
central Nebraska.
.DAY ONE...Tonight.
Isolated to scattered strong to severe storms are possible this
evening across western and north central Nebraska. The main threat
will be hail and damaging winds, but can`t rule out a tornado,
especially east of HWY 83.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Thunderstorms are possible Saturday through Wednesday across the
area. For Saturday, isolated to scattered strong to severe supercell
storms are possible across western and north central Nebraska in the
afternoon into the evening. The main hazards will be large hail and
strong winds with a secondary threat of localized heavy rainfall and
even a tornado can`t be ruled out. Beyond Saturday night, the severe
threat is uncertain.
Very warm temperatures return next week with heat indices
approaching 100 across portions of north central and into central
Nebraska through at least Wednesday.
.SPOTTER INFORMATION STATEMENT...
Spotter activation may be needed.
$$
Hazardous Weather Outlook
National Weather Service Cheyenne WY
241 PM MDT Fri Jul 18 2025
NEZ002-003-019>021-054-055-095-096-WYZ101>119-192045-
Dawes County-Box Butte County-Scotts Bluff County-Banner County-
Morrill County-Kimball County-Cheyenne County-
Northern Sioux County-Southern Sioux County-
Converse County Lower Elevations-Niobrara County-
North Laramie Range-Ferris/Seminoe/Shirley Mountains-
Shirley Basin-Central Laramie Range and Southwest Platte County-
East Platte County-Goshen County-Central Carbon County-
North Snowy Range Foothills-Southwest Carbon County-
Sierra Madre Range-Upper North Platte River Basin-Snowy Range-
Laramie Valley-South Laramie Range-South Laramie Range Foothills-
Central Laramie County-East Laramie County-
241 PM MDT Fri Jul 18 2025
This hazardous weather outlook is for portions of panhandle
Nebraska...east central Wyoming...south central Wyoming and
southeast Wyoming.
.DAY ONE...THIS AFTERNOON AND TONIGHT
Scattered thunderstorms will move eastward in the Wyoming high
plains as well as the Nebraska panhandle. Isolated pea to penny
sized hail and gusty winds to near 60 mph are the primary threats
through 8pm. Please report any severe weather to the NWS.
.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY
A better chance of thunderstorms will exist on Saturday with
storms moving eastward in the Wyoming high plains as well as the
Nebraska panhandle. Hail up to quarter size and gusty winds to
near 60 mph are the primary threats through 9pm, mainly in the
Nebraska panhandle.
.Spotter information statement...
Please report any severe weather to the NWS.
$$
Hazardous Weather Outlook
National Weather Service Grand Junction CO
428 AM MDT Fri Jul 18 2025
COZ001>014-017>023-UTZ022>025-027>029-191030-
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-
428 AM MDT Fri Jul 18 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.
Scattered to widespread showers and thunderstorms will develop
across the southern and central mountains with coverage more
scattered on the higher terrain to the north and west this afternoon
and evening. A few of these storms may become severe producing large
hail, damaging winds and localized heavy rain with flash flooding
possible in flood prone areas, such as fire scars and slot canyons.
Wildfire smoke remains visible across much of the CWA.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
The moisture starts drying out Saturday with more scattered showers
and thunderstorms on terrain. Dry air returns Sunday into early next
week with a return of near critical fire weather conditions. There
will be enough residual moisture to produce afternoon thunderstorms
with increased probability for dry lightning. Wildfire smoke will
remain visible for much of eastern Utah and western Colorado.
.SPOTTER INFORMATION STATEMENT...
Spotter activation may be needed. Spotters are encouraged to report
excessive wind or observed wind related damage, and to relay rainfall
amounts or any observed flooding to the National Weather Service in
Grand Junction.
$$
