This alert expired on 23 July 2026 at 00:45 UTC. It is kept here as a record.
No stronger detection stands among the 39 recorded within 20 km of this point since 9 March 2026 — 3 others scored the same. 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 July 22 at 6:55PM CDT until July 22 at 7:45PM CDT by NWS Houston/Galveston TX
An estimated 3,097,330 people live within 50 km of this point.
Nearby, since 9 March 2026
- March 16, 2026 · score 52 · 3.2 km
- June 21, 2026 · score 48 · 6.0 km
- July 15, 2026 · score 41 · 6.8 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 52 out of 100, at 81 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 52 / 100 |
| Our confidence | 81% |
| Coordinates | 29.5833, -94.8922 |
| Nearest City | La Porte (16 km) |
| Population Exposed | 3.1M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-22T23:55:00.000Z |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Brazoria, TX; Chambers, TX; Galveston, TX; Harris, TX; Chambers, TX; Harris, TX |
| Headline | Severe Thunderstorm Warning issued July 22 at 6:55PM CDT until July 22 at 7:45PM CDT by NWS Houston/Galveston TX |
| Expires | 2026-07-22T19:45:00-05:00 |
| SenderName | NWS Houston/Galveston TX |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.b2189ae8a11b6d4ffacce1cb9f682c5616b4a4a0.001.1","noaa_urn:oid:2.49.0.1.840.0.50734112609322acfa0f24e84d99f57afe820b5d.002.1"] |
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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 52/100, near La Porte (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.