This alert expired on 25 June 2026 at 00:30 UTC. It is kept here as a record.
It is the 2nd strongest of the 106 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 23 June 2026. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 24 at 5:45PM MDT until June 24 at 6:30PM MDT by NWS Cheyenne WY
An estimated 65,132 people live within 50 km of this point.
Nearby, since 15 March 2026
- June 7, 2026 · score 39 · 10.5 km
- August 12, 2026 · score 39 · 17.1 km
- May 9, 2026 · score 39 · 17.3 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 78 % 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 | 78% |
| Coordinates | 41.2119, -104.5332 |
| Nearest City | Cheyenne (25 km) |
| Population Exposed | 65.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-24T23:45:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.08b748f3cba08c469c3dc5d532b8f943 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Albany, WY; Albany, WY; Carbon, WY; Carbon, WY and 4 more areas |
| Headline | Severe Thunderstorm Warning issued June 24 at 5:45PM MDT until June 24 at 6:30PM MDT by NWS Cheyenne WY |
| Expires | 2026-06-24T18:30:00-06:00 |
| SenderName | NWS Cheyenne WY |
| HasExactCoords | true |
| MergedCount | 9 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.08b748f3cba08c469c3dc5d532b8f943e3f408b7.001.1","noaa_urn:oid:2.49.0.1.840.0.c97ccc8c9314ae309b5b9a5d6d0ca51749251cd3.001.1","noaa_urn:oid:2.49.0.1.840.0.d33363e17cf992278059451b57b1a7da304ad606.001.1","noaa_urn:oid:2.49.0.1.840.0.1a19a5951d2e1cdc9562100f7a2c02b3371811bb.001.1","noaa_urn:oid:2.49.0.1.840.0.f21325feab891a7f548a0511352ec9ff06ac6436.001.1","noaa_urn:oid:2.49.0.1.840.0.379b533446c6e7ee5445dff2583426258433bb0a.001.1","noaa_urn:oid:2.49.0.1.840.0.e02e7ca35dda03889f789a029b5633f82ef5f341.001.1","noaa_urn:oid:2.49.0.1.840.0.d897dc901f3d97827fbc1b9c01441d8f4dea0889.001.1","noaa_urn:oid:2.49.0.1.840.0.0c079d287580a9529e6ffe607869ce915b3e2506.001.1"] |
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 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.
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 188 scientific monitoring sources.