This alert expired on 15 March 2026 at 05:45 UTC. It is kept here as a record.
It is the 3rd strongest of the 245 detections recorded within 20 km of this point since 14 March 2026. The last comparable one was on 14 March 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Snow Squall Warning issued March 14 at 11:18PM MDT until March 14 at 11:45PM MDT by NWS Cheyenne WY
An estimated 65,132 people live within 50 km of this point.
Nearby, since 14 March 2026
- August 30, 2026 · score 39 · 8.6 km
- August 12, 2026 · score 39 · 14.2 km
- July 9, 2026 · score 39 · 15.2 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 39 out of 100, at 83 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 39 / 100 |
| Our confidence | 83% |
| Coordinates | 41.1340, -104.7000 |
| Nearest City | Cheyenne (10 km) |
| Population Exposed | 65.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-15T05:18:00.000Z |
| Source | https://api.weather.gov/alerts/urn-oid-2_49_0_1_840_0_2177fba306bd3793731043c79f7c5fe44344bc32_001_1 |
Score Breakdown
Technical Details
| Event | Snow Squall Warning |
| Urgency | Expected |
| Certainty | Likely |
| AreaDesc | Kimball, NE; Albany, WY; Laramie, WY |
| Headline | Snow Squall Warning issued March 14 at 11:18PM MDT until March 14 at 11:45PM MDT by NWS Cheyenne WY |
| Expires | 2026-03-14T23:45:00-06:00 |
| SenderName | NWS Cheyenne WY |
| HasExactCoords | true |
| Iem TypeSummary | N |
| Iem Magnitude | 61 |
| Iem Unit | MPH |
| Iem City | 8 S Chugwater |
| Iem County | Laramie |
| Iem State | WY |
| Iem Wfo | CYS |
| Iem Remark | WYDOT sensor at Bear Creek. |
| MergedSources | [{"id":"iem_N_41.650_-104.850_1773534720000","source":"iem","severity":"low","severityValue":25,"timestamp":1773534720000,"latitude":41.65,"longitude":-104.85}] |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
Series begins 10 February 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Want to know when something happens near Cheyenne?
Calamity.live data shows a weather event with CalamityScore 39/100, near Cheyenne (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.