This alert expired on 27 May 2026 at 01:15 UTC. It is kept here as a record.
It is the 7th strongest of the 145 detections recorded within 20 km of this point since 10 March 2026. Another comparable one was recorded here earlier the same day. 48 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 26 at 7:57PM CDT until May 26 at 8:15PM CDT by NWS Austin/San Antonio TX
An estimated 764,763 people live within 50 km of this point.
Nearby, since 10 March 2026
- May 20, 2026 · score 48 · 10.2 km
- May 9, 2026 · score 48 · 13.2 km
- September 2, 2026 · score 54 · 15.2 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 48 out of 100, at 85 % 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) | 48 / 100 |
| Our confidence | 85% |
| Coordinates | 30.8378, -97.7311 |
| Nearest City | Georgetown (24 km) |
| Population Exposed | 764.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-27T00:57:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.8879efc80cce2d5bb1459b350b50294b2dea16bc.002.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Williamson, TX |
| Headline | Severe Thunderstorm Warning issued May 26 at 7:57PM CDT until May 26 at 8:15PM CDT by NWS Austin/San Antonio TX |
| Expires | 2026-05-26T20:15:00-05:00 |
| SenderName | NWS Austin/San Antonio TX |
| HasExactCoords | true |
| Google News RssFeed | weather |
| Google News SourceName | KXAN Austin |
| MergedSources | [{"id":"gnews_weather_494397_180","source":"google_news","severity":"medium","severityValue":40,"timestamp":1779832592000,"latitude":30.27,"longitude":-97.74}] |
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 Georgetown?
Calamity.live data shows a weather event with CalamityScore 48/100, near Georgetown (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.