Reported by CO OPS 61 days ago.
No stronger detection stands among the 65 recorded within 20 km of this point since 16 March 2026 — 39 others scored the same. The last comparable one was on 18 June 2026. 60 more were recorded here in the fortnight before it.
What the source measured
CO OPS reported: Water level 2.15m above predicted at Galveston Pier 21, TX. Observed: 2.37m, Predicted: 0.21m (MLLW datum).
An estimated 331,652 people live within 50 km of this point.
Nearby, since 16 March 2026
- June 18, 2026 · score 37 · 0.0 km
How we know
Confirmed by 2 independent sources, including CO OPS.
Our own score for this event is 37 out of 100, at 75 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Flood |
| Severity | critical |
| Calamity Score (ours) | 37 / 100 |
| Our confidence | 75% |
| Coordinates | 29.3103, -94.7935 |
| Nearest City | Galveston (1 km) |
| Population Exposed | 331.7K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-06-30T08:54:00.000Z |
| Source | https://tidesandcurrents.noaa.gov/stationhome.html?id=8771450 |
Score Breakdown
Technical Details
| StationId | 8771450 |
| StationName | Galveston Pier 21, TX |
| ObservedM | 2.37 |
| PredictedM | 0.22 |
| SurgeM | 2.15 |
| Datum | MLLW |
| Google News RssFeed | flood |
| Google News SourceName | Houston Chronicle |
| MergedSources | [{"id":"gnews_flood_495207_3","source":"google_news","severity":"medium","severityValue":40,"timestamp":1782745531000,"latitude":29.76,"longitude":-95.36}] |
Safety Information
During flooding: never walk, swim, or drive through floodwaters. Six inches of moving water can knock you down, and one foot of water can sweep away a vehicle. Move to higher ground if waters rise. After flooding, avoid contact with floodwater which may contain sewage, chemicals, or debris. Follow local emergency service guidance.
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 flood event with CalamityScore 37/100, near Galveston (United States), based on data from co_ops. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.