This alert expired on 27 May 2026 at 01:45 UTC. It is kept here as a record.
It is the 4th strongest of the 12 detections recorded within 20 km of this point since 26 May 2026. Another comparable one was recorded here earlier the same day. 9 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 26 at 8:12PM CDT until May 26 at 8:45PM CDT by NWS Austin/San Antonio TX
Nearby, since 26 May 2026
- May 26, 2026 · score 46 · 14.2 km
- May 26, 2026 · score 22 · 20.6 km
How we know
Confirmed by 4 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 70 % 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 | 70% |
| Coordinates | 28.7058, -99.1750 |
| Nearest City | Uvalde (82 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-27T01:12:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.60b56f99642684dccbe3f25957475804 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Dimmit, TX; Frio, TX; Medina, TX; Uvalde, TX; Zavala, TX; La Salle, TX; McMullen, TX |
| Headline | Severe Thunderstorm Warning issued May 26 at 8:12PM CDT until May 26 at 8:45PM CDT by NWS Austin/San Antonio TX |
| Expires | 2026-05-26T20:45:00-05:00 |
| SenderName | NWS Austin/San Antonio TX |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.60b56f99642684dccbe3f2595747580477fda5f1.001.1","noaa_urn:oid:2.49.0.1.840.0.e63f98e443002f587ce5e103c9c121f0590dd08c.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | Pearsall |
| Iem County | Frio |
| Iem State | TX |
| Iem Wfo | EWX |
| Iem Remark | 1 inch hail reported via media. |
| MergedSources | [{"id":"iem_G_28.900_-98.990_1779832800000","source":"iem","severity":"low","severityValue":25,"timestamp":1779832800000,"latitude":28.9,"longitude":-98.99},{"id":"iem_H_28.780_-98.970_1779834300000","source":"iem","severity":"low","severityValue":25,"timestamp":1779834300000,"latitude":28.78,"longitude":-98.97},{"id":"iem_H_28.890_-99.090_1779830100000","source":"iem","severity":"low","severityValue":25,"timestamp":1779830100000,"latitude":28.89,"longitude":-99.09}] |
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.