Reported by CO OPS today.
It is the 16th strongest of the 518 detections recorded within 20 km of this point since 8 March 2026. Another comparable one was recorded here earlier the same day.
What the source measured
CO OPS reported: Water level 0.43m above predicted at Seattle, WA. Observed: 2.39m, Predicted: 1.96m (MLLW datum).
The observed water level was 2.39 m, against 1.96 m predicted.
An estimated 3,023,420 people live within 50 km of this point.
Nearby, since 8 March 2026
- September 2, 2026 · score 52 · 0.0 km
- August 30, 2026 · score 46 · 0.0 km
- August 30, 2026 · score 16 · 0.0 km
How we know
Confirmed by 2 independent sources, including CO OPS.
Our own score for this event is 39 out of 100, at 75 % 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 | Floods |
| Severity | Medium |
| Calamity Score (ours) | 39 / 100 |
| Our confidence | 75% |
| Coordinates | 47.6026, -122.3393 |
| Nearest City | Seattle (1 km) |
| Population Exposed | 3.0M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-02T14:12:00.000Z |
| Source | https://tidesandcurrents.noaa.gov/stationhome.html?id=9447130 |
Score Breakdown
Technical Details
| StationId | 9447130 |
| StationName | Seattle, WA |
| ObservedM | 2.39 |
| PredictedM | 1.96 |
| SurgeM | 0.43 |
| Datum | MLLW |
| Google News RssFeed | flood |
| Google News SourceName | The Seattle Times |
| MergedSources | [{"id":"gnews_flood_496754_47","source":"google_news","severity":"medium","severityValue":40,"timestamp":1788317586000,"latitude":47.61,"longitude":-122.33}] |
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 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 Seattle?
Calamity.live data shows a flood event with CalamityScore 39/100, near Seattle (United States), based on data from co_ops. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.