This alert expired on 20 May 2026 at 00:30 UTC. It is kept here as a record.
No stronger detection stands among the 17 recorded within 20 km of this point since 9 May 2026 — 7 others scored the same. 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 19 at 7:19PM CDT until May 19 at 7:30PM CDT by NWS Austin/San Antonio TX
An estimated 579,789 people live within 50 km of this point.
Nearby, since 9 May 2026
- May 20, 2026 · score 48 · 19.3 km
- June 15, 2026 · score 43 · 19.5 km
- May 27, 2026 · score 48 · 20.2 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 | 30.8965, -97.8783 |
| Nearest City | Copperas Cove (25 km) |
| Population Exposed | 579.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-20T00:19:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.4ce89d484f265b5369b6e7046be45456 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Williamson, TX; Burnet, TX; Bell, TX; Coryell, TX; Lampasas, TX and 1 more areas |
| Headline | Severe Thunderstorm Warning issued May 19 at 7:19PM CDT until May 19 at 7:30PM CDT by NWS Austin/San Antonio TX |
| Expires | 2026-05-19T19:30:00-05:00 |
| SenderName | NWS Austin/San Antonio TX |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.4ce89d484f265b5369b6e7046be45456c28e5fc4.001.1","noaa_urn:oid:2.49.0.1.840.0.20307f54cda1875a16e9752813e60888732bd1e0.001.1","noaa_urn:oid:2.49.0.1.840.0.b9ede50d6ba63c4610d3371f14236be79629223c.001.1","noaa_urn:oid:2.49.0.1.840.0.e65354fc702a3771fc0b6b6e9a6dda356160b993.001.1"] |
| Google News RssFeed | weather |
| Google News SourceName | KXAN Austin |
| MergedSources | [{"id":"gnews_weather_494231_122","source":"google_news","severity":"medium","severityValue":40,"timestamp":1779233507000,"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 Copperas Cove?
Calamity.live data shows a weather event with CalamityScore 48/100, near Copperas Cove (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.