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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Omaha/Valley NE
907 PM CDT Mon Apr 12 2021

907 PM CDT Mon Apr 12 2021

This Hazardous Weather Outlook is for portions of southwest
Iowa...west central Iowa...east central Nebraska...northeast
Nebraska and southeast Nebraska.

.DAY ONE...Tonight and Tuesday

Areas of frost are possible Tuesday morning between 3 AM and 9 AM
as temperatures dip into the lower and middle 30s.

.DAYS TWO THROUGH SEVEN...Tuesday night through Monday

Areas of frost and freezing temperatures are possible Wednesday
morning. Susceptible vegetation may be impacted.


Spotter activation will not be needed.



Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1045 AM MDT Mon Apr 12 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-
1045 AM MDT Mon Apr 12 2021

This hazardous weather outlook is for northeast and north central

.DAY ONE...Today and Tonight

Scattered light snow or flurries will develop across the Front
Range Mountains and Foothills late this afternoon and evening, and
then become more widespread tonight. Some of the light snow may
also spread into the I-25 Corridor. Accumulations up to 3 inches
are possible over the mountains with lighter amounts in the
foothills. There could be dusting to half inch of snow possible
in the Denver and Boulder areas. Roads may become slick in the
high country.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

The upcoming week will be cool and unsettled. Snow showers will
develop in the mountains Tuesday afternoon and spread across much
of the area Tuesday night. Several inches of snow will be possible
in the mountains and foothills and slushy or snow covered roads
are expected Tuesday night. Generally light snow accumulations are
expected across the I-25 corridor and adjacent plains, confined
to the grass and elevated surfaces. Additional light showers are
possible Wednesday into Thursday. The best chance for widespread
precipitation will be Thursday night into Friday and several more
inches of snow accumulation will be possible.


Spotter activation will not be needed today or tonight.


Hazardous Weather Outlook
National Weather Service Cheyenne WY
431 AM MDT Mon Apr 12 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-Laramie Valley-
South Laramie Range Foothills-Central Laramie County-
East Laramie County-
431 AM MDT Mon Apr 12 2021

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


Cloudy skies with cool temperatures and breezy conditions.


Light snowfall/rainfall expected beginning Tuesday morning and
lasting through Friday. Most impacts expected Wednesday and
Thursday, especially along Interstate 80 between Cheyenne and Elk

.Spotter information statement...

Spotters are encouraged to report snowfall amounts to the National
Weather Service in Cheyenne.


Hazardous Weather Outlook
National Weather Service Rapid City SD
357 AM MDT Mon Apr 12 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-
357 AM MDT Mon Apr 12 2021 /457 AM CDT Mon Apr 12 2021/

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

.DAY ONE...Today and Tonight

Gusty northwest winds will continue today. Gusts over 40 mph are
expected over northeast Wyoming, and over 50 mph on the South
Dakota plains.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Widespread precipitation is possible Thursday into Friday, with
several inches of snow accumulation possible in the Black Hills.


Spotter activation will not be needed today.


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


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