This alert expired on 12 March 2026 at 06:15 UTC. It is kept here as a record.
It is the 5th strongest of the 28 detections recorded within 20 km of this point since 12 March 2026.
What the source measured
NOAA reported: Flood Warning issued March 11 at 8:07PM EDT until March 12 at 2:15AM EDT by NWS Wilmington OH
An estimated 25,976 people live within 50 km of this point.
Nearby, since 12 March 2026
- May 28, 2026 · score 34 · 3.2 km
- May 25, 2026 · score 22 · 12.1 km
- August 7, 2026 · score 22 · 15.7 km
How we know
Confirmed by 4 independent sources, including NOAA.
Our own score for this event is 34 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) | 34 / 100 |
| Our confidence | 90% |
| Coordinates | 39.3000, -83.6293 |
| Nearest City | Xenia (50 km) |
| Population Exposed | 26.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-12T00:07:00.000Z |
| Source | https://api.weather.gov/alerts/urn-oid-2_49_0_1_840_0_be64980e01734a8e45877d44bb8526ca5448640d_001_1 |
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Expected |
| Certainty | Likely |
| AreaDesc | Clinton, OH; Highland, OH |
| Headline | Flood Warning issued March 11 at 8:07PM EDT until March 12 at 2:15AM EDT by NWS Wilmington OH |
| Expires | 2026-03-12T02:15:00-04:00 |
| SenderName | NWS Wilmington OH |
| HasExactCoords | true |
| Iem TypeSummary | E |
| Iem City | 4 E Hillsboro |
| Iem County | Highland |
| Iem State | OH |
| Iem Wfo | ILN |
| Iem Remark | Clear creek road by US-50 closed. |
| MergedSources | [{"id":"iem_E_39.290_-83.900_1773271380000","source":"iem","severity":"low","severityValue":25,"timestamp":1773271380000,"latitude":39.29,"longitude":-83.9},{"id":"iem_E_38.980_-83.410_1773269100000","source":"iem","severity":"low","severityValue":25,"timestamp":1773269100000,"latitude":38.98,"longitude":-83.41},{"id":"iem_E_39.210_-83.550_1773272820000","source":"iem","severity":"low","severityValue":25,"timestamp":1773272820000,"latitude":39.21,"longitude":-83.55}] |
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 34/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.