Right now
The most recent data we hold from NOAA arrived 6 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 23 May 2026 at 12:30 UTC. It is kept here as a record.
It is the 4th strongest of the 53 detections recorded within 20 km of this point since 9 March 2026. The last comparable one was on 20 May 2026. 6 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued May 23 at 5:57AM CDT until May 23 at 7:30AM CDT by NWS Houston/Galveston TX
An estimated 783,173 people live within 50 km of this point.
Nearby, since 9 March 2026
- May 23, 2026 · score 48 · 0.0 km
- May 20, 2026 · score 48 · 4.0 km
- March 9, 2026 · score 22 · 6.2 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 48 out of 100, at 79 % 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 | 79% |
| Coordinates | 29.4760, -94.8885 |
| Nearest City | Texas City (11 km) |
| Population Exposed | 783.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-23T10:57:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.48bdb3061b56ffecdef22a7f94ced6e91ccca1a2.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Galveston Bay; Coastal waters from High Island to Freeport TX out 20 NM |
| Headline | Special Marine Warning issued May 23 at 5:57AM CDT until May 23 at 7:30AM CDT by NWS Houston/Galveston TX |
| Expires | 2026-05-23T07:30:00-05:00 |
| SenderName | NWS Houston/Galveston 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.
Want to know when something happens near Texas City?
Calamity.live data shows a weather event with CalamityScore 48/100, near Texas City (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.