Right now
The most recent data we hold from NOAA arrived 4 minutes ago, and this point is in it.
7 other detections within 20 km in the last 24 hours, the nearest 4 km from here.
This alert expired on 12 September 2026 at 04:15 UTC. It is kept here as a record.
It is the 45th strongest of the 65 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 8 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued September 11 at 10:26PM CDT until September 11 at 11:15PM CDT by NWS Austin/San Antonio TX
An estimated 1,758,906 people live within 50 km of this point.
Nearby, since 16 March 2026
- September 12, 2026 · score 58 · 3.6 km
- May 11, 2026 · score 52 · 4.5 km
- May 27, 2026 · score 52 · 9.3 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 46 out of 100, at 82 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 46 / 100 |
| Our confidence | 82% |
| Coordinates | 29.3817, -98.4150 |
| Nearest City | San Antonio (8 km) |
| Population Exposed | 1.8M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-12T03:26:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.8667463a24bdfe59bbd4d25da4acab5b7a85781c.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Bexar, TX |
| Headline | Severe Thunderstorm Warning issued September 11 at 10:26PM CDT until September 11 at 11:15PM CDT by NWS Austin/San Antonio TX |
| Expires | 2026-09-11T23:15:00-05:00 |
| SenderName | NWS Austin/San Antonio TX |
| HasExactCoords | true |
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.
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