This alert expired on 12 March 2026 at 09:00 UTC. It is kept here as a record.
No stronger detection stands among the 39 recorded within 20 km of this point since 11 March 2026 — 10 others scored the same. The last comparable one was on 11 March 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued March 11 at 10:50PM EDT until March 12 at 5:00AM EDT by NWS Charleston WV
An estimated 86,537 people live within 50 km of this point.
Nearby, since 11 March 2026
- July 21, 2026 · score 32 · 5.8 km
- March 11, 2026 · score 39 · 10.1 km
- August 9, 2026 · score 39 · 12.1 km
How we know
Confirmed by 5 independent sources, including NOAA.
Our own score for this event is 39 out of 100, at 90 % 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 | 90% |
| Coordinates | 39.4535, -82.5297 |
| Nearest City | Lancaster (29 km) |
| Population Exposed | 86.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-12T02:50:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flood-Warning_noaa_urn-oid-2_49_0_1_840_0_277fddd07eaf019019e83a13b62fd846 |
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Expected |
| Certainty | Likely |
| AreaDesc | Washington, OH; Clinton, OH; Highland, OH |
| Headline | Flood Warning issued March 11 at 10:50PM EDT until March 12 at 5:00AM EDT by NWS Charleston WV |
| Expires | 2026-03-12T05:00:00-04:00 |
| SenderName | NWS Charleston WV |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.277fddd07eaf019019e83a13b62fd846ac023e54.001.1","noaa_urn:oid:2.49.0.1.840.0.be64980e01734a8e45877d44bb8526ca5448640d.001.1"] |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | 7 ENE Mcconnelsville |
| Spc County | Morgan |
| Spc State | OH |
| Spc Comments | Two trees down on State Route 284 at the 1 and 3 mile markers. Timing estimated from radar. (RLX) |
| Iem TypeSummary | E |
| Iem City | 3 WSW Logan |
| Iem County | Hocking |
| Iem State | OH |
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 Lancaster (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.