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Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Billings MT
230 AM MDT Tue Apr 20 2021

MTZ029>031-034-040-042-056>058-063>068-138-139-141-169>173-228-235-
WYZ198-199-210830-
Musselshell-Treasure-Northern Rosebud-Northern Stillwater-
Northern Park-Golden Valley-Red Lodge Foothills-Northern Big Horn-
Southern Rosebud-Judith Gap-Paradise Valley-Livingston Area-
Beartooth Foothills-Absaroka/Beartooth Mountains-Crazy Mountains-
Southern Big Horn-Southeastern Carbon-Northern Sweet Grass-
Bighorn Canyon-Northern Carbon-Pryor/Northern Bighorn Mountains-
Melville Foothills-Northeastern Yellowstone-Southern Wheatland-
Southwestern Yellowstone-Northeast Bighorn Mountains-
Sheridan Foothills-
230 AM MDT Tue Apr 20 2021

This Hazardous Weather Outlook is for portions of central
Montana...south central Montana...southeast Montana and north
central Wyoming.

* WHAT... Significant weather change with deteriorating travel
  conditions due to snow and wind.

* WHERE...Southern Montana and North Central Wyoming.

* WHEN...Thursday Night.

* ADDITIONAL DETAILS...A strong cold front will move through
  Thursday night bringing rain to the lower elevations that will
  change to snow as temperatures drop. Lower elevations west of
  Rosebud County could see 1 to 2 inches of snow with higher
  amounts in the foothills and mountains. North winds will be gusty
  behind the front. Friday morning commute could be slick in many
  areas.
 PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be sure to stay tuned for further updates on this potential
hazardous weather.

Additional graphics can be found at:

https://www.weather.gov/billings

&&

$$

Hazardous Weather Outlook
National Weather Service Aberdeen SD
321 AM CDT Tue Apr 20 2021

MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-210830-
Traverse-Big Stone-Corson-Campbell-McPherson-Brown-Marshall-Roberts-
Walworth-Edmunds-Day-Dewey-Potter-Faulk-Spink-Clark-Codington-Grant-
Hamlin-Deuel-Stanley-Sully-Hughes-Hyde-Hand-Jones-Lyman-Buffalo-
321 AM CDT Tue Apr 20 2021 /221 AM MDT Tue Apr 20 2021/

This Hazardous Weather Outlook is for west central Minnesota,
central South Dakota, north central South Dakota and northeast
South Dakota.

.DAY ONE...Today and tonight.

Snow and rain showers are expected today, but little if any impacts
are anticipated.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

$$

Hazardous Weather Outlook
National Weather Service Riverton WY
154 AM MDT Tue Apr 20 2021

WYZ001>020-022>030-211200-
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-
154 AM MDT Tue Apr 20 2021

This Hazardous Weather Outlook is for Western and Central
Wyoming.

.DAY ONE...Today and Tonight.

Lingering snow showers across the Bighorns and northern Johnson
County will be limited in extent and will gradually end this
afternoon.

.DAYS TWO THROUGH SEVEN...Wednesday through Sunday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

$$

Hazardous Weather Outlook
National Weather Service Rapid City SD
527 AM MDT Mon Apr 19 2021

SDZ024-025-028-072-WYZ057-201300-
Northern Black Hills-Northern Foot Hills-Central Black Hills-
Sturgis/Piedmont Foot Hills-Wyoming Black Hills-
527 AM MDT Mon Apr 19 2021

This Hazardous Weather Outlook is for portions of northwestern
South Dakota...the Black Hills of South Dakota...and the Black
Hills of Wyoming.

.DAY ONE...Today and Tonight

Persistent snow will taper off this morning, then transition to
snow showers by this afternoon. These snow showers will be heavy
at times, particularly over the southern Black Hills this
afternoon and across the northern Black Hills overnight. In these
areas, another 2 to 4 inches of snow will be possible.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Snow showers will continue Tuesday, particularly over the northern
Black Hills. Additional accumulations up to around an inch will be
possible during the daylight hours.

.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
527 AM MDT Mon Apr 19 2021

SDZ012-026-027-029>031-041>044-047-073-074-WYZ054>056-058-071-
201300-
Butte-Rapid City-Southern Foot Hills-Southern Black Hills-
Custer Co Plains-Pennington Co Plains-Fall River-Oglala Lakota-
Jackson-Bennett-Todd-Southern Meade Co Plains-Hermosa Foot Hills-
Northern Campbell-Southern Campbell-Western Crook-Weston-
Northeastern Crook-
527 AM MDT Mon Apr 19 2021 /627 AM CDT Mon Apr 19 2021/

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

.DAY ONE...Today and Tonight

Light snow will continue this morning before tapering off from
north to south. Additional accumulations of 1 to 3 inches are
expected, with highest accumulations over southern portions of
northeastern Wyoming and within a heavier band of snow across
Bennett and Todd counties.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

No hazardous weather is expected at this time.

.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

$$

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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