Alert archive / Wyoming / Snow Squall Warnings in 2025

Snow Squall Warning 11, NWS Cheyenne, WY

March 31, 2025Carbon County, Wyoming

NWS Cheyenne, WY issued this snow squall warning at Mar 31, 2025, 5:14 PM MDT for Carbon County, Wyoming. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Mar 31, 2025, 5:14 PM MDT (23:14 UTC)
Expired
Mar 31, 2025, 5:45 PM MDT
In force
31 min
Issued by
NWS Cheyenne, WY
Area
Storm-based polygon

County Carbon County, WY

The radar

The Cheyenne radar (KCYS), 187 km from the middle of the area, began a volume at 23:15 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What forecasters said that day

The local office's own words before this snow squall warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Cheyenne, WY wrote its last area forecast discussion before this snow squall warning went out at Mar 31, 4:06 PM MDT, 1 hour 8 minutes earlier.

Area forecast discussion, Mar 31, 4:06 PM MDT, 1 hour 8 minutes before
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Hazardous weather outlook, Mar 31, 4:08 PM MDT, 1 hour 6 minutes before
Hazardous Weather Outlook
National Weather Service Cheyenne WY
408 PM MDT Mon Mar 31 2025

NEZ002-003-019>021-054-055-095-096-WYZ101>119-012215-
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-
408 PM MDT Mon Mar 31 2025

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

.DAY ONE...TONIGHT

- Showers with a few thunderstorms will move over the High
  Plains through this evening and may produce isolated small,
  soft hail.

- Rain showers will change to snow by early evening in Carbon
  county, with multiple rounds of snow showers expected through
  Tuesday morning. Some snow showers will be locally intense,
  producing low visibility and slick conditions along I-80.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

- Moisture wrapping back into the area may produce slushy snow
  accumulations along the US-20 corridor Tuesday evening through
  Wednesday morning, but confidence is fairly low.

- Strong to locally high winds return to the area Tuesday and
  Wednesday.

- Cold end to the week and start to the weekend, with a warming
  trend expected to start next week.

.Spotter information statement...

Spotter activation will not be needed.

In the hours before

Local storm report, Mar 31, 11:42 AM MDT, 5 hours 32 minutes before
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Special weather statement, Mar 31, 4:48 PM MDT, 26 minutes before
Special Weather Statement
National Weather Service Cheyenne WY
448 PM MDT Mon Mar 31 2025

WYZ107-108-312315-
East Platte County WY-Goshen County WY-
448 PM MDT Mon Mar 31 2025

...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN GOSHEN AND EAST
CENTRAL PLATTE COUNTIES THROUGH 515 PM MDT...

At 448 PM MDT, Doppler radar was tracking a strong thunderstorm over
Hartville, or 24 miles northeast of Wheatland, moving east at 35 mph.

HAZARD...Half inch hail.

SOURCE...Radar indicated.

IMPACT...Minor hail damage to vegetation is possible.

Locations impacted include...
Register Cliff State Historic Site, Jay Em, Guernsey, Oregon Trail
Ruts State Historic Site, Guernsey State Park, and Hartville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4223 10477 4237 10483 4255 10441 4233 10427
TIME...MOT...LOC 2248Z 247DEG 32KT 4234 10469

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...<30 MPH

Mose

The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 30, 8:05 PM MDTSpecial Weather StatementCYSAlbany55 min
Mar 31, 3:21 AM MDTWinter Weather AdvisoryCYSAlbany, Carbon39 hr
Mar 31, 4:48 PM MDTSpecial Weather StatementCYSGoshen27 min
Mar 31, 5:36 PM MDTSpecial Weather StatementCYSNiobrara24 min

Nearby

Snow Squall Warnings in Wyoming, 2025Every snow squall warning in 2025

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.