This alert is in force until 5 September 2026, 16:15 UTC.
It is the 9th strongest of the 39 detections recorded within 20 km of this point since 23 March 2026. Another comparable one was recorded here earlier the same day.
What the source measured
NOAA reported: Flood Warning issued September 5 at 9:12AM EDT until September 5 at 12:15PM EDT by NWS Wilmington OH
An estimated 127,997 people live within 50 km of this point.
Nearby, since 23 March 2026
- August 10, 2026 · score 43 · 9.6 km
- August 10, 2026 · score 39 · 9.8 km
- September 5, 2026 · score 28 · 9.9 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 37 out of 100, at 87 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 37 / 100 |
| Our confidence | 87% |
| Coordinates | 40.3720, -83.8180 |
| Nearest City | Sidney (31 km) |
| Population Exposed | 128.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-05T13:12:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.42d35725274fffa02983c715ca178c1e4c8e5287.001.1 |
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Expected |
| Certainty | Likely |
| AreaDesc | Champaign, OH; Logan, OH; Union, OH |
| Headline | Flood Warning issued September 5 at 9:12AM EDT until September 5 at 12:15PM EDT by NWS Wilmington OH |
| Expires | 2026-09-05T12:15:00-04:00 |
| SenderName | NWS Wilmington OH |
| HasExactCoords | true |
| Iem TypeSummary | D |
| Iem City | Columbus Grove |
| Iem County | Putnam |
| Iem State | OH |
| Iem Wfo | IWX |
| Iem Remark | Tree onto a house. Powerlines also down in various spots throughout the county. Time estimated by radar. |
| MergedSources | [{"id":"iem_D_40.920_-84.060_1788592620000","source":"iem","severity":"low","severityValue":25,"timestamp":1788592620000,"latitude":40.92,"longitude":-84.06},{"id":"iem_G_39.910_-84.220_1788598620000","source":"iem","severity":"low","severityValue":25,"timestamp":1788598620000,"latitude":39.91,"longitude":-84.22},{"id":"iem_D_40.840_-83.980_1788593280000","source":"iem","severity":"low","severityValue":25,"timestamp":1788593280000,"latitude":40.84,"longitude":-83.98},{"id":"iem_F_40.340_-83.730_1788597180000","source":"iem","severity":"low","severityValue":25,"timestamp":1788597180000,"latitude":40.34,"longitude":-83.73},{"id":"iem_F_40.370_-83.760_1788596700000","source":"iem","severity":"low","severityValue":25,"timestamp":1788596700000,"latitude":40.37,"longitude":-83.76},{"id":"iem_D_40.790_-84.200_1788593580000","source":"iem","severity":"low","severityValue":25,"timestamp":1788593580000,"latitude":40.79,"longitude":-84.2},{"id":"iem_D_40.920_-84.060_1788592680000","source":"iem","severity":"low","severityValue":25,"timestamp":1788592680000,"latitude":40.92,"longitude":-84.06}] |
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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 37/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.