Right now
The most recent data we hold from NOAA arrived 1 minute 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 21 July 2026 at 22:30 UTC. It is kept here as a record.
It is the 22nd strongest of the 44 detections recorded within 20 km of this point since 12 March 2026. The last comparable one was on 5 July 2026.
What the source measured
NOAA reported: Flash Flood Warning issued July 21 at 3:26PM EDT until July 21 at 6:30PM EDT by NWS Wilmington OH
An estimated 662,651 people live within 50 km of this point.
Nearby, since 12 March 2026
- May 18, 2026 · score 48 · 4.6 km
- June 18, 2026 · score 72 · 5.2 km
- May 25, 2026 · score 48 · 11.9 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 41 out of 100, at 79 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
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) | 41 / 100 |
| Our confidence | 79% |
| Coordinates | 39.1232, -84.9593 |
| Nearest City | Burlington (23 km) |
| Population Exposed | 662.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-21T19:26:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.e6adb43ef6e3ff7a23b02a63d275df73 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Dearborn, IN; Ripley, IN; Dearborn, IN; Hamilton, OH |
| Headline | Flash Flood Warning issued July 21 at 3:26PM EDT until July 21 at 6:30PM EDT by NWS Wilmington OH |
| Expires | 2026-07-21T18:30:00-04:00 |
| SenderName | NWS Wilmington OH |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.e6adb43ef6e3ff7a23b02a63d275df732405a626.001.1","noaa_urn:oid:2.49.0.1.840.0.f95988129381e5167a498f952b34befeccb3080f.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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