This alert expired on 10 May 2026 at 02:15 UTC. It is kept here as a record.
It is the 5th strongest of the 28 detections recorded within 20 km of this point since 10 May 2026. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 9 at 7:43PM MDT until May 9 at 8:15PM MDT by NWS Goodland KS
Nearby, since 10 May 2026
- June 23, 2026 · score 46 · 17.9 km
- June 1, 2026 · score 46 · 20.4 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 22 out of 100, at 60 % 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) | 22 / 100 |
| Our confidence | 60% |
| Coordinates | 39.9146, -102.7614 |
| Nearest City | Evans (172 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-10T01:43:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.2f73dfbe328a993c2b0b98ee56c4a689 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Yuma, CO; Washington, CO |
| Headline | Severe Thunderstorm Warning issued May 9 at 7:43PM MDT until May 9 at 8:15PM MDT by NWS Goodland KS |
| Expires | 2026-05-09T20:15:00-06:00 |
| SenderName | NWS Goodland KS |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.2f73dfbe328a993c2b0b98ee56c4a689049a63bb.001.1","noaa_urn:oid:2.49.0.1.840.0.9ec5443113cd9cfdee7346464ce9d0133ecb53fa.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?
Calamity.live data shows a weather event with CalamityScore 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.