Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service North Platte NE
441 AM CDT Sun Aug 17 2025
NEZ004>010-022>029-035>038-056>059-069>071-094-180945-
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-
441 AM CDT Sun Aug 17 2025 /341 AM MDT Sun Aug 17 2025/
This Hazardous Weather Outlook is for portions of western and north
central Nebraska.
.DAY ONE...Today and tonight.
Thunderstorms are possible late this afternoon and evening. Some
storms across north central into central Nebraska could be strong to
severe with damaging wind gusts and large hail.
.DAYS TWO THROUGH SEVEN...Monday through Saturday.
Thunderstorms are possible Monday afternoon and evening across much
of western and north central Nebraska. A few storms could be strong
to severe with a threat for damaging wind gusts and large hail.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
Hazardous Weather Outlook
National Weather Service Rapid City SD
321 AM MDT Sun Aug 17 2025
SDZ001-002-012>014-024>026-028-031-032-043-072-073-078-WYZ054>060-
181300-
Harding-Northern Perkins-Butte-Northern Meade Co Plains-Ziebach-
Northern Black Hills-Northern Foothills-Rapid City-
Central Black Hills-Pennington Co Plains-Haakon-Northern Jackson-
Sturgis/Piedmont Foothills-Southern Meade Co Plains-
Southern Perkins-Northern Campbell-Southern Campbell-
Western Crook-Wyoming Black Hills-Weston County Plains-Newcastle-
Northeastern Crook-
321 AM MDT Sun Aug 17 2025
This Hazardous Weather Outlook is for portions of western South
Dakota and northeastern Wyoming.
.DAY ONE...Today and Tonight
Isolated thunderstorms are possible today, no widespread severe
weather is expected.
.DAYS TWO THROUGH SEVEN...Monday through Saturday
Thunderstorms are possible on Monday, some storms could be strong
to severe and capable of damaging winds and large hail.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed today.
&&
Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity
$$
Hazardous Weather Outlook
National Weather Service Rapid City SD
321 AM MDT Sun Aug 17 2025
SDZ027-029-030-041-042-044-046-047-049-074>077-181300-
Southern Foothills-Southern Black Hills-Custer Co Plains-
Western Fall River-Northern Oglala Lakota-Bennett-Mellette-Todd-
Tripp-Hermosa Foothills-Eastern Fall River-Southern Oglala Lakota-
Southern Jackson-
321 AM MDT Sun Aug 17 2025 /421 AM CDT Sun Aug 17 2025/
This Hazardous Weather Outlook is for portions of south central
South Dakota...southwestern South Dakota...and the Black Hills of
South Dakota.
.DAY ONE...Today and Tonight
There is a marginal risk (level 1 of 5) of severe thunderstorms
today, meaning that isolated severe storms are possible. Primary
hazards include large hail and damaging winds.
.DAYS TWO THROUGH SEVEN...Monday through Saturday
Thunderstorms are possible on Monday, some storms could be strong
to severe and capable of damaging winds and large hail.
.SPOTTER INFORMATION STATEMENT...
Spotter activation may be needed today.
&&
Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity
$$
Hazardous Weather Outlook
National Weather Service Cheyenne WY
212 AM MDT Sun Aug 17 2025
NEZ002-003-019>021-054-055-095-096-WYZ101>119-180815-
Dawes County-Box Butte County-Scotts Bluff County-Banner County-
Morrill County-Kimball County-Cheyenne County-
Northern Sioux County-Southern Sioux County-
Converse County Lower Elevations-Niobrara County-
North Laramie Range-Ferris/Seminoe/Shirley Mountains-
Shirley Basin-Central Laramie Range and Southwest Platte County-
East Platte County-Goshen County-Central Carbon County-
North Snowy Range Foothills-Southwest Carbon County-
Sierra Madre Range-Upper North Platte River Basin-Snowy Range-
Laramie Valley-South Laramie Range-South Laramie Range Foothills-
Central Laramie County-East Laramie County-
212 AM MDT Sun Aug 17 2025
This hazardous weather outlook is for portions of panhandle
Nebraska...east central Wyoming...south central Wyoming and
southeast Wyoming.
.DAY ONE...TONIGHT
- A marginal risk (1 of 5) for severe weather is expected today,
impacting Dawes and Box Butte counties with gusty
showers/storms expected elsewhere across the region.
.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY
- Precipitation chances begin to lessen to end the weekend and
begin next week, with mostly hot and dry conditions expected
for the front half of the week.
- A cold front late in the week should bring back rainfall while
also helping to temper highs leading into next weekend.
.Spotter information statement...
Spotter activation will not be needed.
$$
Hazardous Weather Outlook
National Weather Service Grand Junction CO
200 AM MDT Sun Aug 17 2025
COZ001>014-017>023-UTZ022>025-027>029-181200-
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-
200 AM MDT Sun Aug 17 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 and may
produce gusty outflow winds up to 40 mph.
.DAYS TWO THROUGH SEVEN...Monday through Saturday.
Isolated thunderstorm chances continue over the higher terrain
through Wednesday before increasing in coverage Thursday and beyond.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
Hazardous Weather Outlook
National Weather Service Riverton WY
200 AM MDT Sun Aug 17 2025
WYZ001>020-022>030-181200-
Yellowstone National Park-Absaroka Mountains-Cody Foothills-
North Bighorn Basin-Southwest Bighorn Basin-Southeast Bighorn Basin-
Owl Creek and Bridger Mountains-Bighorn Mountains West-
Bighorn Mountains Southeast-Northeast Johnson County-
Southeast Johnson County-Teton and Gros Ventre Mountains-
Jackson Hole-Wind River Mountains West-Wind River Mountains East-
Upper Wind River Basin-Wind River Basin-Lander Foothills-
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-Casper Mountain-Star Valley-
Salt River and Wyoming Ranges-Upper Green River Basin Foothills-
Upper Green River Basin-South Lincoln County-
Rock Springs and Green River-Flaming Gorge-East Sweetwater County-
200 AM MDT Sun Aug 17 2025
This Hazardous Weather Outlook is for Western and Central Wyoming.
.DAY ONE...Today and Tonight.
Afternoon and evening thunderstorm chances once again with frequent
lightning and gusty outflow winds the main hazard. Storms diminish
after sunset towards midnight.
.DAYS TWO THROUGH SEVEN...Monday through Saturday.
The probability for widespread hazardous weather is low.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
738 AM MDT Sat Aug 16 2025
COZ030>051-171345-
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-
738 AM MDT Sat Aug 16 2025
This hazardous weather outlook is for northeast and north central
Colorado.
.DAY ONE...Today and Tonight
Scattered afternoon showers and storms are expected this
afternoon, beginning across the higher terrain then moving
eastward onto the lower elevations. With a slight increase in
moisture today, a few may be more efficient rain makers than the
past few days. The main hazard with today`s convection will be
gusty outflows once again, with 40 to 50 mph gusts possible. With
modest shear values expected, can`t rule out some small hail, but
any storms that develop are expected to remain sub-severe today.
.DAYS TWO THROUGH SEVEN...Sunday through Friday
Conditions are expected to trend drier beginning on Sunday and
continue that way through at least mid-week, lowering afternoon
storm coverage each day, with temperatures peaking in the mid to
upper 90s on Thursday. Ensembles are hinting at a moisture return
by next weekend.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed today or tonight.
$$
