This alert expired on 29 May 2026 at 03:00 UTC. It is kept here as a record.
It is the 7th strongest of the 103 detections recorded within 20 km of this point since 12 March 2026. The last comparable one was on 24 May 2026. 13 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued May 28 at 10:57AM EDT until May 30 at 9:12PM EDT by NWS Wilmington OH
An estimated 50,542 people live within 50 km of this point.
Nearby, since 12 March 2026
- August 12, 2026 · score 39 · 8.5 km
- March 12, 2026 · score 39 · 11.3 km
- July 5, 2026 · score 39 · 13.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 out of 100, at 81 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 39 / 100 |
| Our confidence | 81% |
| Coordinates | 39.6311, -81.9444 |
| Nearest City | Zanesville (35 km) |
| Population Exposed | 50.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-28T14:57:00.000Z |
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Pickaway, OH; Fairfield, OH; Licking, OH; Harrison, WV |
| Headline | Flood Warning issued May 28 at 10:57AM EDT until May 30 at 9:12PM EDT by NWS Wilmington OH |
| Expires | 2026-05-28T23:00:00-04:00 |
| SenderName | NWS Wilmington OH |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.0e5e0289a07b7dfed0432b10eb09eb133703c58d.001.1","noaa_urn:oid:2.49.0.1.840.0.4b6f4c3bd83946b31e65bc88b6dbbf2581b62f28.001.1","noaa_urn:oid:2.49.0.1.840.0.6514716ba10206445e3ce4c892b68b463c0230f2.001.1"] |
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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 39/100, near Zanesville (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 194 scientific monitoring sources.