Right now
The most recent data we hold from NOAA arrived 27 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 05:15 UTC. It is kept here as a record.
No stronger detection stands among the 13 recorded within 20 km of this point since 2 April 2026 — 10 others scored the same. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 10 at 11:43PM CDT until May 11 at 12:15AM CDT by NWS Houston/Galveston TX
An estimated 16,579 people live within 50 km of this point.
Nearby, since 2 April 2026
- May 20, 2026 · score 34 · 10.2 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 34 out of 100, at 80 % 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) | 34 / 100 |
| Our confidence | 80% |
| Coordinates | 30.1247, -96.6276 |
| Nearest City | Brenham (22 km) |
| Population Exposed | 16.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-11T04:43:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.64b632d17f57c1ec83b2d14a7838e89f |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Austin, TX; Washington, TX; Washington, TX; Fayette, TX |
| Headline | Severe Thunderstorm Warning issued May 10 at 11:43PM CDT until May 11 at 12:15AM CDT by NWS Houston/Galveston TX |
| Expires | 2026-05-11T00:15:00-05:00 |
| SenderName | NWS Houston/Galveston TX |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.64b632d17f57c1ec83b2d14a7838e89f3938dcf1.001.1","noaa_urn:oid:2.49.0.1.840.0.0e286e13d6a867f154022fae9f7a1847dfda8e33.001.1","noaa_urn:oid:2.49.0.1.840.0.7c3e9d0e7ab115561323220ed8484926e7903b4e.001.1"] |
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 Brenham?
Calamity.live data shows a weather event with CalamityScore 34/100, near Brenham (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.