Alert archive / Wyoming / Winter Storm Warnings in 2026

Winter Storm Warning 6, NWS Cheyenne, WY

May 4, 2026Albany County, Carbon County, Laramie County, Wyoming

NWS Cheyenne, WY issued this winter storm warning at May 4, 2026, 3:15 AM MDT for Albany County, Carbon County, Laramie County, Wyoming. It took effect at May 4, 2026, 9:00 PM MDT. It was in force for 36 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 4, 2026, 3:15 AM MDT (09:15 UTC)
In effect from: May 4, 2026, 9:00 PM MDT
Expired: May 6, 2026, 9:00 AM MDT
In force: 36 hr
Issued by: NWS Cheyenne, WY

Counties Albany County, WY, Carbon County, WY, Laramie County, WY

The radar

The Cheyenne radar (KCYS), 93 km from the middle of the area, began a volume at 09:15 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 winter storm 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 winter storm warning went out at May 3, 11:49 PM MDT, 3 hours 26 minutes earlier.

Area forecast discussion, May 3, 11:49 PM MDT, 3 hours 26 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 4, 2:41 AM MDT	Winter Storm Watch	CYS	Laramie	10 hr
May 4, 3:15 AM MDT	Winter Weather Advisory	CYS	Albany, Carbon, Converse, Laramie, Platte	54 hr

Nearby

Winter Storm Warnings in Wyoming, 2026 Every winter storm warning in 2026

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.