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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Cheyenne WY
321 AM MDT Fri May 7 2021

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-
321 AM MDT Fri May 7 2021

This hazardous weather outlook is for portions of panhandle
Nebraska...east central Wyoming...south central Wyoming and
southeast Wyoming.


Isolated thunderstorms, mainly east of Interstate 25, will occur
this afternoon and evening, with a few storms possibly producing
locally strong wind gusts up to 60 mph.


Saturday will be cooler with a slight chance of late day
thunderstorms. Sunday through Tuesday will be even colder with
widespread showers and a chance of thunderstorms, mainly in the
afternoons and evenings. There will also be scattered to numerous
snow showers at higher elevations.

.Spotter information statement...

Spotter activation will not be needed.



Hazardous Weather Outlook
National Weather Service Rapid City SD
521 AM MDT Fri May 7 2021

Harding-Perkins-Butte-Northern Meade Co Plains-Ziebach-
Northern Black Hills-Northern Foot Hills-Rapid City-
Southern Foot Hills-Central Black Hills-Southern Black Hills-
Custer Co Plains-Pennington Co Plains-Haakon-Fall River-
Oglala Lakota-Jackson-Bennett-Mellette-Todd-Tripp-
Sturgis/Piedmont Foot Hills-Southern Meade Co Plains-
Hermosa Foot Hills-Northern Campbell-Southern Campbell-
Western Crook-Wyoming Black Hills-Weston-Northeastern Crook-
521 AM MDT Fri May 7 2021 /621 AM CDT Fri May 7 2021/

This Hazardous Weather Outlook is for portions of western South
Dakota and northeastern Wyoming.

.DAY ONE...Today and Tonight

Isolated showers and thunderstorms are possible later this
afternoon through the evening hours. No severe weather is
anticipated at this time.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

A weather system will move into the region this weekend, with
cooler temperatures and chances for precipitation. Some snow
showers with light accumulations are possible over the higher
elevations of the Black Hills Saturday night into Sunday.


Spotter activation will not be needed today.


Stay tuned to NOAA weather radio for further updates...or check
our web site at


Hazardous Weather Outlook
National Weather Service Riverton WY
442 AM MDT Fri May 7 2021

Yellowstone National Park-Absaroka Mountains-Cody Foothills-
North Big Horn Basin-Southwest Big Horn Basin-
Southeast Big Horn 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-
442 AM MDT Fri May 7 2021

This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...Today and Tonight.

Elevated fire conditions over portions of central and southern
areas. Isolated to locally scattered thunderstorms this afternoon
and evening especially over the west and north. The main hazard
will be very strong and erratic winds.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

The probability for widespread hazardous weather is low.


Weather spotters are encouraged to report significant weather
conditions, according to standard operating procedures.


Hazardous Weather Outlook
National Weather Service Grand Junction CO
436 AM MDT Fri May 7 2021

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-
436 AM MDT Fri May 7 2021

This hazardous weather outlook is for eastern Utah and western

.DAY ONE...Today and Tonight

Strong southwest winds, above normal temperatures and low relative
humidity combined with later than normal green-up will bring
critical fire weather conditions to much of western Colorado
below 8,500 feet. In addition, isolated thunderstorms are possible
over the higher elevations of the San Juan, Elk and Sawatch
mountains this afternoon.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Critical fire weather conditions are possible through Sunday.
Light mountain snow may return to the northern and central
mountains early next week. Isolated to scattered thunderstorms are
possible each afternoon/evening beginning Friday.


Spotter activation will not be needed.


Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
359 AM MDT Fri May 7 2021

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
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
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Logan County-Washington County-Sedgwick County-Phillips County-
359 AM MDT Fri May 7 2021

This hazardous weather outlook is for northeast and north central

.DAY ONE...Today and Tonight

Isolated, high-based showers and thunderstorms will produce gusty
outflow winds to around 40 mph late this afternoon and evening.
A dryline will develop roughly from northeast Weld county toward
the Akron area. There is a low threat of a strong to severe storm
or two along and east of this line. Large hail and gusty winds
would be the primary threat of severe weather, but only if a
storm could break the cap.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Saturday will see scattered showers and storms with light
precipitation. There is a marginal threat of severe storms
producing some hail and gusty winds in the afternoon, which still
seems limited to the plains east of the Palmer Divide, mainly
Lincoln County.

Sunday through Tuesday, there will be widespread showers and
storms with potential for heavy precipitation that could impact
the lower elevations of the burn areas. However, cooling
temperatures and falling snow levels will mean snow for the higher
elevations which would mitigate flood danger.


Spotter activation will not be needed today or tonight.


Hazardous Weather Outlook
National Weather Service North Platte NE
307 AM CDT Fri May 7 2021

Sheridan-Eastern Cherry-Keya Paha-Boyd-Brown-Rock-Holt-Garden-
Western Cherry-
307 AM CDT Fri May 7 2021 /207 AM MDT Fri May 7 2021/

This Hazardous Weather Outlook is for portions of western and
north central Nebraska.


Scattered thunderstorms will affect portions of the panhandle and
western Sandhills this evening into tonight. The threat of severe
weather is generally low.


A few thunderstorms are possible Saturday as rain showers
overspread the region. The severe weather threat is low at this


Spotter activation will not be needed through tonight.


Get your weather, hydrological, and climate information at


U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
Page last modified: June 2, 2009
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