Right now
The most recent data we hold from NOAA arrived 5 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 23 May 2026 at 22:16 UTC. It is kept here as a record.
It is the 11th strongest of the 75 detections recorded within 20 km of this point since 12 March 2026. The last comparable one was on 19 May 2026. 9 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued May 23 at 6:06PM EDT until May 23 at 6:15PM EDT by NWS Charleston WV
Urban PEI: 492,144 within a heuristic 50 km radius; not unique people.
Nearby, since 12 March 2026
- May 24, 2026 · score 43 · 0.0 km
- August 12, 2026 · score 43 · 5.5 km
- May 26, 2026 · score 48 · 8.4 km
How we know
One source: NOAA. 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 v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 43 / 100 |
| Legacy data-support index | 0.79/1 |
| Coordinates | 39.3403, -85.0164 |
| Nearest City | Oxford (30 km) |
| Urban exposure index (PEI) | 492.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-24T13:12:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.f32508e6e1f4427ae5af7b415d42587c |
Physical priority index · v1. 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: noaa. Occurrence: 2026-05-24T13:12:00.000Z.
First archived: 2026-05-23T22:09:20.148Z. 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
| Event | Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Washington, OH; Holmes, OH; Wayne, OH; Marion, OH and 13 more areas |
| Headline | Flood Warning issued May 23 at 6:06PM EDT until May 23 at 6:15PM EDT by NWS Charleston WV |
| Expires | 2026-05-23T18:16:00-04:00 |
| SenderName | NWS Charleston WV |
| HasExactCoords | true |
| MergedCount | 20 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.f32508e6e1f4427ae5af7b415d42587c6bffcdb6.001.1","noaa_urn:oid:2.49.0.1.840.0.1202112c82c82e8639be7c067b0b64ba04a5022c.001.1","noaa_urn:oid:2.49.0.1.840.0.18f151750a2b4452e48aa92f7030ad355487f348.001.1","noaa_urn:oid:2.49.0.1.840.0.0d7c5ad0ba6ef9e5e111e26a45f8d0f2f65ccb2e.001.1","noaa_urn:oid:2.49.0.1.840.0.6d1695564088263b69d11116b2021b93da3d1565.001.1","noaa_urn:oid:2.49.0.1.840.0.22ce39264c720855283e1cb8d2c80df64a70ae66.002.1","noaa_urn:oid:2.49.0.1.840.0.22ce39264c720855283e1cb8d2c80df64a70ae66.001.1","noaa_urn:oid:2.49.0.1.840.0.ec9bde9ab083363a12bb1af59407887d37905be8.001.1","noaa_urn:oid:2.49.0.1.840.0.ec9bde9ab083363a12bb1af59407887d37905be8.003.1","noaa_urn:oid:2.49.0.1.840.0.ec9bde9ab083363a12bb1af59407887d37905be8.002.1","noaa_urn:oid:2.49.0.1.840.0.ec9bde9ab083363a12bb1af59407887d37905be8.006.1","noaa_urn:oid:2.49.0.1.840.0.ec9bde9ab083363a12bb1af59407887d37905be8.009.1","noaa_urn:oid:2.49.0.1.840.0.ec9bde9ab083363a12bb1af59407887d37905be8.005.1","noaa_urn:oid:2.49.0.1.840.0.ec9bde9ab083363a12bb1af59407887d37905be8.007.1","noaa_urn:oid:2.49.0.1.840.0.ec9bde9ab083363a12bb1af59407887d37905be8.008.1","noaa_urn:oid:2.49.0.1.840.0.ec9bde9ab083363a12bb1af59407887d37905be8.004.1","noaa_urn:oid:2.49.0.1.840.0.0d1948d547fd9701999bed4bc08ff0ff2083c9b8.001.1","noaa_urn:oid:2.49.0.1.840.0.b7bd1daa609183b8cba1c3e259fc532c5023decc.001.1","noaa_urn:oid:2.49.0.1.840.0.1e41a877db979b85cc81ccc10b0b003adcf0cd33.001.1","noaa_urn:oid:2.49.0.1.840.0.862bb150b3975403034b5ca5e6f8f42065e54b6a.001.1"] |
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.
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