This alert expired on 23 July 2026 at 00:45 UTC. It is kept here as a record.
It is the 5th strongest of the 49 detections recorded within 20 km of this point since 9 March 2026. Another comparable one was recorded here earlier the same day. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued July 22 at 6:51PM CDT until July 22 at 7:45PM CDT by NWS Houston/Galveston TX
An estimated 783,173 people live within 50 km of this point.
Nearby, since 9 March 2026
- July 15, 2026 · score 41 · 2.6 km
- June 21, 2026 · score 48 · 5.5 km
- July 22, 2026 · score 52 · 7.2 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 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) | 48 / 100 |
| Our confidence | 81% |
| Coordinates | 29.5452, -94.8317 |
| Nearest City | Texas City (20 km) |
| Population Exposed | 783.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-22T23:51:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.f7c20b1b39158aa5b4f9ae5c5e8b6641 |
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 July 22 at 6:51PM 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.f7c20b1b39158aa5b4f9ae5c5e8b66411c192d5d.001.1","noaa_urn:oid:2.49.0.1.840.0.377fa47e18479f6c9c4f8ac9936129810357db10.002.1"] |
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 48/100, near Texas City (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.