Alert archive / Wyoming / Freeze Warnings in 2026
Freeze Warning 4, NWS Cheyenne, WY
NWS Cheyenne, WY issued this freeze warning at May 21, 2026, 1:58 PM MDT for Albany County, Carbon County, Laramie County, Wyoming. It took effect at May 22, 2026, 12:00 AM MDT. It was in force for 9 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 21, 2026, 1:58 PM MDT (19:58 UTC)
- In effect from
- May 22, 2026, 12:00 AM MDT
- Expired
- May 22, 2026, 9:00 AM MDT
- In force
- 9 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 19:57 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 freeze 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 freeze warning went out at May 21, 11:56 AM MDT, 2 hours 2 minutes earlier.
Area forecast discussion, May 21, 11:56 AM MDT, 2 hours 2 minutes before
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Special weather statement, May 21, 12:07 PM MDT, 1 hour 51 minutes before
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</html>Special weather statement, May 21, 1:50 PM MDT, 8 minutes before
Special Weather Statement
National Weather Service Cheyenne WY
150 PM MDT Thu May 21 2026
NEZ095-096-WYZ102-108-212030-
North Sioux NE-South Sioux NE-Goshen County WY-Niobrara County WY-
150 PM MDT Thu May 21 2026
...A STRONG THUNDERSTORM WILL IMPACT WEST CENTRAL SIOUX...
SOUTHEASTERN NIOBRARA AND NORTHEASTERN GOSHEN COUNTIES THROUGH 230 PM
MDT...
At 150 PM MDT, Doppler radar was tracking a strong thunderstorm 9
miles southeast of Prairie Center, or 23 miles north of Torrington,
moving northeast at 15 mph.
HAZARD...Wind gusts up to 40 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.
This storm will remain over mainly rural areas of west central Sioux,
southeastern Niobrara and northeastern Goshen Counties.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4231 10405 4236 10425 4264 10410 4252 10381
TIME...MOT...LOC 1950Z 208DEG 11KT 4240 10410
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH
GoatleyThe office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 21, 12:07 PM MDT | Special Weather Statement | CYS | Goshen | 23 min |
| May 21, 12:52 PM MDT | Special Weather Statement | CYS | Goshen | 38 min |
| May 21, 1:29 PM MDT | Special Weather Statement | CYS | Goshen | 31 min |
| May 21, 1:39 PM MDT | Special Weather Statement | CYS | Goshen | 36 min |
| May 21, 2:02 PM MDT | Special Weather Statement | CYS | Goshen | 43 min |
| May 21, 3:54 PM MDT | Special Weather Statement | CYS | Laramie | 36 min |
| May 21, 4:22 PM MDT | Snow Squall Warning | CYS | Carbon | 53 min |
| May 21, 1:50 PM MDT | Special Weather Statement | CYS | Sioux | 40 min |
| May 21, 3:01 PM MDT | Special Weather Statement | CYS | Sioux | 44 min |
| May 21, 3:08 PM MDT | Special Weather Statement | CYS | Scotts Bluff | 37 min |
| May 21, 3:09 PM MDT | Special Weather Statement | CYS | Dawes | 36 min |
| May 21, 3:22 PM MDT | Special Weather Statement | CYS | Scotts Bluff | 38 min |
| May 21, 3:30 PM MDT | Severe Thunderstorm Warning | CYS | Scotts Bluff, Sioux | 45 min |
| May 21, 3:37 PM MDT | Severe Thunderstorm Warning | CYS | Dawes | 38 min |
| May 21, 3:57 PM MDT | Special Weather Statement | CYS | Banner | 33 min |
| May 21, 4:01 PM MDT | Severe Thunderstorm Warning | CYS | Banner, Kimball | 44 min |
| May 21, 4:14 PM MDT | Special Weather Statement | CYS | Dawes | 46 min |
| May 21, 4:24 PM MDT | Special Weather Statement | CYS | Scotts Bluff | 36 min |
| May 21, 4:41 PM MDT | Severe Thunderstorm Warning | CYS | Banner, Kimball | 30 min |
| May 21, 4:44 PM MDT | Tornado Warning | CYS | Kimball | 26 min |
| May 21, 4:57 PM MDT | Special Weather Statement | CYS | Scotts Bluff | 48 min |
| May 21, 5:09 PM MDT | Severe Thunderstorm Warning | CYS | Banner, Cheyenne, Kimball, Morrill | 51 min |
| May 21, 5:11 PM MDT | Special Weather Statement | CYS | Scotts Bluff | 49 min |
Nearby
Freeze Warnings in Wyoming, 2026Every freeze 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.