Calamity
HighFloodsCS: 36 · v4 (historical)

Floods

CO OPS

Right now

The most recent data we hold from CO OPS arrived 3 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.

7 other detections within 20 km in the last 24 hours, the nearest <1 km from here.

Reported by CO OPS 18 days ago.

It is the strongest of the 11 detections recorded within 20 km of this point since 2 September 2026. The last comparable one was on 2 September 2026.

What the source measured

CO OPS reported: Water level 1.21m above predicted at Adak Island, AK. Observed: 0.94m, Predicted: -0.27m (MLLW datum).

The observed water level was 0.94 m, against -0.27 m predicted.

Nearby, since 2 September 2026

How we know

One source: CO OPS. Not yet confirmed by a second, independent source.

Our own score for this event is 36 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

TypeFloods
SeverityHigh
Calamity Score (ours)36 / 100
Legacy data-support index0.49/1
Coordinates51.8633, -176.6320
Nearest CityAnadyr (1470 km)
Urban exposure index (PEI)0 within 50 km
Impact Tierminor
Timestamp2026-09-06T00:00:00.000Z
Sourcehttps://tidesandcurrents.noaa.gov/stationhome.html?id=9461380

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: 2026-09-06T00:00:00.000Z.

First archived: 2026-09-06T18:24:22.602Z. 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

70
intensity
0
Urban PEI term
0
Scenario weight
80
Recorded reference / batch anomaly

Technical Details

StationId9461380
StationNameAdak Island, AK
ObservedM0.94
PredictedM-0.26
SurgeM1.21
DatumMLLW

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.

Follow this area

Review the area, threshold and delivery channel in your account.

Want to know when something happens in this area?

Share:XLinkedIn