Right now
The most recent data we hold from NOAA arrived 1 minute ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 9 May 2026 at 23:30 UTC. It is kept here as a record.
It is the 5th strongest of the 41 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 8 May 2026. 6 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 9 at 4:47PM MDT until May 9 at 5:30PM MDT by NWS Cheyenne WY
An estimated 65,132 people live within 50 km of this point.
Nearby, since 15 March 2026
- June 8, 2026 · score 58 · 17.1 km
- June 2, 2026 · score 58 · 18.9 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 out of 100, at 79 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 39 / 100 |
| Our confidence | 79% |
| Coordinates | 41.5073, -104.9923 |
| Nearest City | Cheyenne (43 km) |
| Population Exposed | 65.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-09T22:47:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.1b6829482c30d216b5173e698df20b07 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Kimball, NE; Laramie, WY; Albany, WY; Carbon, WY |
| Headline | Severe Thunderstorm Warning issued May 9 at 4:47PM MDT until May 9 at 5:30PM MDT by NWS Cheyenne WY |
| Expires | 2026-05-09T17:30:00-06:00 |
| SenderName | NWS Cheyenne WY |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.1b6829482c30d216b5173e698df20b07d93d13c9.001.1","noaa_urn:oid:2.49.0.1.840.0.6d10e6303505f3b839034b7cd2b1dca92f5fc8bc.001.1"] |
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 8 March 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 in this area?