Right now
The most recent data we hold from NOAA arrived 3 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 11 May 2026 at 04:15 UTC. It is kept here as a record.
It is the 17th strongest of the 65 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 1 May 2026. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 10 at 10:41PM CDT until May 10 at 11:15PM CDT by NWS Houston/Galveston TX
An estimated 1,660,499 people live within 50 km of this point.
Nearby, since 16 March 2026
- May 27, 2026 · score 52 · 4.8 km
- August 29, 2026 · score 52 · 5.5 km
- August 30, 2026 · score 52 · 6.6 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 52 out of 100, at 86 % 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) | 52 / 100 |
| Our confidence | 86% |
| Coordinates | 29.3892, -98.5349 |
| Nearest City | San Antonio (6 km) |
| Population Exposed | 1.7M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-11T03:41:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.a1ce5274619ced1f74c7ac8df22db36d |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Burleson, TX; Washington, TX; Bastrop, TX; Lee, TX; Bexar, TX; Medina, TX and 5 more areas |
| Headline | Severe Thunderstorm Warning issued May 10 at 10:41PM CDT until May 10 at 11:15PM CDT by NWS Houston/Galveston TX |
| Expires | 2026-05-10T23:15:00-05:00 |
| SenderName | NWS Houston/Galveston TX |
| HasExactCoords | true |
| MergedCount | 8 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a1ce5274619ced1f74c7ac8df22db36d29c29758.001.1","noaa_urn:oid:2.49.0.1.840.0.edaec38222cd697f3bc1af3bebb27833f9adcf66.001.1","noaa_urn:oid:2.49.0.1.840.0.a338a81a4687c1529c7a82373c990a72350f77db.001.1","noaa_urn:oid:2.49.0.1.840.0.cfc2ecdf98b7b94415e8b2246feaae0c75a31675.001.1","noaa_urn:oid:2.49.0.1.840.0.1e71e51f58ddeaa90110612f736a3a5b7147103d.001.1","noaa_urn:oid:2.49.0.1.840.0.8eea8de8738e5bcf779a380c5c89cb34582a2e69.001.1","noaa_urn:oid:2.49.0.1.840.0.01cc8e61989622bbbd9a33a901fb8be1b5267f49.001.1","noaa_urn:oid:2.49.0.1.840.0.87e46a96366462951ec0c84a120df359a2da2fe3.001.1"] |
| Google News RssFeed | weather |
| Google News SourceName | San Antonio Express-News |
| MergedSources | [{"id":"gnews_weather_494017_229","source":"google_news","severity":"medium","severityValue":40,"timestamp":1778461824000,"latitude":29.42,"longitude":-98.49}] |
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 San Antonio?