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.
123 other detections within 20 km in the last 24 hours, the nearest <1 km from here.
Reported by CO OPS today.
No stronger detection stands among the 1067 recorded within 20 km of this point since 16 March 2026 — 57 others scored the same. The last comparable one was on 15 September 2026. 759 more were recorded here in the fortnight before it.
What the source measured
CO OPS reported: Water level 0.53m above predicted at Charleston, SC. Observed: 1.13m, Predicted: 0.59m (MLLW datum).
The observed water level was 1.13 m, against 0.59 m predicted.
Urban PEI: 429,708 within a heuristic 50 km radius; not unique people.
Nearby, since 16 March 2026
- September 16, 2026 · score 43 · 0.0 km
- September 15, 2026 · score 43 · 0.0 km
- September 8, 2026 · score 43 · 0.0 km
How we know
One source: CO OPS. Not yet confirmed by a second, independent source.
Our own score for this event is 43 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 v5. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Floods |
| Severity | Medium |
| Calamity Score (ours) | 43 / 100 |
| Legacy data-support index | 0.70/1 |
| Coordinates | 32.7817, -79.9236 |
| Nearest City | Charleston (1 km) |
| Urban exposure index (PEI) | 429.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-16T00:00:00.000Z |
| Source | https://tidesandcurrents.noaa.gov/stationhome.html?id=8665530 |
Physical priority index · v5. 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: 2026-09-16T00:00:00.000Z.
First archived: 2026-09-16T00:08:43.294Z. 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 | 8665530 |
| StationName | Charleston, SC |
| ObservedM | 1.13 |
| PredictedM | 0.59 |
| SurgeM | 0.53 |
| Datum | MLLW |
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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