This alert expired on 23 May 2026 at 10:15 UTC. It is kept here as a record.
It is the 7th strongest of the 21 detections recorded within 20 km of this point since 11 March 2026. The last comparable one was on 11 May 2026. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 23 at 4:19AM CDT until May 23 at 5:15AM CDT by NWS Fort Worth TX
An estimated 59,594 people live within 50 km of this point.
Nearby, since 11 March 2026
- August 8, 2026 · score 34 · 12.9 km
- March 11, 2026 · score 37 · 13.1 km
- June 3, 2026 · score 39 · 16.5 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 80 % 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 | 80% |
| Coordinates | 32.9888, -95.8605 |
| Nearest City | Greenville (29 km) |
| Population Exposed | 59.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-23T09:19:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.380bd3b3ba463bf46b90f1f8d94ab8e3 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Rains, TX; Van Zandt, TX; Delta, TX; Fannin, TX; Hopkins, TX; Hunt, TX; Lamar, TX |
| Headline | Severe Thunderstorm Warning issued May 23 at 4:19AM CDT until May 23 at 5:15AM CDT by NWS Fort Worth TX |
| Expires | 2026-05-23T05:15:00-05:00 |
| SenderName | NWS Fort Worth TX |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.380bd3b3ba463bf46b90f1f8d94ab8e36ee94aa5.001.1","noaa_urn:oid:2.49.0.1.840.0.24206c988d910340fff182b93268d97eb2ff742b.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 near Greenville?
Calamity.live data shows a weather event with CalamityScore 39/100, near Greenville (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.