Right now
The most recent data we hold from CO OPS arrived 10 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
48 other detections within 20 km in the last 24 hours, the nearest <1 km from here.
Reported by CO OPS today.
It is the 148th strongest of the 1485 detections recorded within 20 km of this point since 8 March 2026. Another comparable one was recorded here earlier the same day. 1139 more were recorded here in the fortnight before it.
What the source measured
CO OPS reported: Water level 0.41m above predicted at Seattle, WA. Observed: 1.94m, Predicted: 1.54m (MLLW datum).
The observed water level was 1.94 m, against 1.54 m predicted.
Urban PEI: 3,023,420 within a heuristic 50 km radius; not unique people.
Nearby, since 8 March 2026
- September 14, 2026 · score 39 · 0.0 km
- September 13, 2026 · score 58 · 0.0 km
- September 12, 2026 · score 52 · 0.0 km
How we know
2 recorded sources include CO OPS; independence is not established by this count.
Our own score for this event is 39 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
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 |
| Legacy data-support index | 0.75/1 |
| Coordinates | 47.6026, -122.3393 |
| Nearest City | Seattle (1 km) |
| Urban exposure index (PEI) | 3.0M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-13T22:18:00.000Z |
| Source | https://tidesandcurrents.noaa.gov/stationhome.html?id=9447130 |
Physical priority index · v4 (historical). Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: co_ops. Occurrence: 2026-09-13T22:18:00.000Z.
First archived: 2026-09-13T22:31:53.907Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| StationId | 9447130 |
| StationName | Seattle, WA |
| ObservedM | 1.94 |
| PredictedM | 1.54 |
| SurgeM | 0.41 |
| Datum | MLLW |
| Google News RssFeed | flood |
| Google News SourceName | KIRO 7 News Seattle |
| MergedSources | [{"id":"gnews_flood_497019_43","source":"google_news","severity":"medium","severityValue":40,"timestamp":1789269840000,"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.
Review the area, threshold and delivery channel in your account.
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