This alert expired on 2 September 2026 at 12:45 UTC. It is kept here as a record.
It is the 24th strongest of the 33 detections recorded within 20 km of this point since 1 May 2026. The last comparable one was on 28 August 2026.
What the source measured
NOAA reported: Special Marine Warning issued September 2 at 6:53AM CDT until September 2 at 7:45AM CDT by NWS Houston/Galveston TX
An estimated 377,202 people live within 50 km of this point.
Nearby, since 1 May 2026
- July 6, 2026 · score 43 · 8.1 km
- July 22, 2026 · score 43 · 9.3 km
- August 28, 2026 · score 48 · 12.5 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 37 out of 100, at 87 % 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) | 37 / 100 |
| Our confidence | 87% |
| Coordinates | 29.5267, -94.6606 |
| Nearest City | Texas City (28 km) |
| Population Exposed | 377.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-02T11:53:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.67afe5c2aaa2a05f5e39d8130e8f4d7dfd4aa38d.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 September 2 at 6:53AM CDT until September 2 at 7:45AM CDT by NWS Houston/Galveston TX |
| Expires | 2026-09-02T07:45:00-05:00 |
| SenderName | NWS Houston/Galveston TX |
| HasExactCoords | true |
| Iem TypeSummary | R |
| Iem Magnitude | 3.27 |
| Iem Unit | Inch |
| Iem City | 3 W Fannett |
| Iem County | Jefferson |
| Iem State | TX |
| Iem Wfo | LCH |
| MergedSources | [{"id":"iem_R_29.810_-94.260_1788351000000","source":"iem","severity":"low","severityValue":25,"timestamp":1788351000000,"latitude":29.81,"longitude":-94.26},{"id":"iem_R_29.850_-94.190_1788348600000","source":"iem","severity":"low","severityValue":25,"timestamp":1788348600000,"latitude":29.85,"longitude":-94.19},{"id":"iem_R_29.860_-94.010_1788351000000","source":"iem","severity":"low","severityValue":25,"timestamp":1788351000000,"latitude":29.86,"longitude":-94.01},{"id":"iem_R_29.850_-94.230_1788349800000","source":"iem","severity":"low","severityValue":25,"timestamp":1788349800000,"latitude":29.85,"longitude":-94.23},{"id":"iem_R_29.770_-94.100_1788349500000","source":"iem","severity":"low","severityValue":25,"timestamp":1788349500000,"latitude":29.77,"longitude":-94.1},{"id":"iem_R_29.800_-94.100_1788350700000","source":"iem","severity":"low","severityValue":25,"timestamp":1788350700000,"latitude":29.8,"longitude":-94.1},{"id":"iem_R_29.940_-94.230_1788350700000","source":"iem","severity":"low","severityValue":25,"timestamp":1788350700000,"latitude":29.94,"longitude":-94.23},{"id":"iem_R_29.960_-94.350_1788350400000","source":"iem","severity":"low","severityValue":25,"timestamp":1788350400000,"latitude":29.96,"longitude":-94.35},{"id":"iem_R_29.790_-94.330_1788350700000","source":"iem","severity":"low","severityValue":25,"timestamp":1788350700000,"latitude":29.79,"longitude":-94.33},{"id":"iem_R_29.930_-94.110_1788351000000","source":"iem","severity":"low","severityValue":25,"timestamp":1788351000000,"latitude":29.93,"longitude":-94.11},{"id":"iem_R_29.870_-94.160_1788350400000","source":"iem","severity":"low","severityValue":25,"timestamp":1788350400000,"latitude":29.87,"longitude":-94.16},{"id":"iem_R_29.710_-94.120_1788348900000","source":"iem","severity":"low","severityValue":25,"timestamp":1788348900000,"latitude":29.71,"longitude":-94.12},{"id":"iem_R_29.690_-94.170_1788350700000","source":"iem","severity":"low","severityValue":25,"timestamp":1788350700000,"latitude":29.69,"longitude":-94.17},{"id":"iem_R_29.840_-94.090_1788351300000","source":"iem","severity":"low","severityValue":25,"timestamp":1788351300000,"latitude":29.84,"longitude":-94.09},{"id":"iem_R_29.850_-94.350_1788350700000","source":"iem","severity":"low","severityValue":25,"timestamp":1788350700000,"latitude":29.85,"longitude":-94.35},{"id":"iem_R_29.770_-94.170_1788351600000","source":"iem","severity":"low","severityValue":25,"timestamp":1788351600000,"latitude":29.77,"longitude":-94.17},{"id":"iem_R_29.960_-94.170_1788348600000","source":"iem","severity":"low","severityValue":25,"timestamp":1788348600000,"latitude":29.96,"longitude":-94.17},{"id":"iem_R_29.970_-94.340_1788349200000","source":"iem","severity":"low","severityValue":25,"timestamp":1788349200000,"latitude":29.97,"longitude":-94.34},{"id":"iem_R_29.890_-94.030_1788351000000","source":"iem","severity":"low","severityValue":25,"timestamp":1788351000000,"latitude":29.89,"longitude":-94.03},{"id":"iem_R_29.950_-94.330_1788351300000","source":"iem","severity":"low","severityValue":25,"timestamp":1788351300000,"latitude":29.95,"longitude":-94.33},{"id":"iem_R_29.950_-94.400_1788351600000","source":"iem","severity":"low","severityValue":25,"timestamp":1788351600000,"latitude":29.95,"longitude":-94.4},{"id":"iem_R_29.850_-94.070_1788351000000","source":"iem","severity":"low","severityValue":25,"timestamp":1788351000000,"latitude":29.85,"longitude":-94.07},{"id":"iem_R_29.690_-94.160_1788348300000","source":"iem","severity":"low","severityValue":25,"timestamp":1788348300000,"latitude":29.69,"longitude":-94.16},{"id":"iem_R_29.860_-94.000_1788351300000","source":"iem","severity":"low","severityValue":25,"timestamp":1788351300000,"latitude":29.86,"longitude":-94},{"id":"iem_R_29.940_-94.300_1788350100000","source":"iem","severity":"low","severityValue":25,"timestamp":1788350100000,"latitude":29.94,"longitude":-94.3}] |
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 37/100, near Texas City (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.