This alert expired on 21 July 2026 at 19:15 UTC. It is kept here as a record.
It is the 28th strongest of the 87 detections recorded within 20 km of this point since 11 March 2026. The last comparable one was on 18 July 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 21 at 2:37PM EDT until July 21 at 3:15PM EDT by NWS Wilmington OH
An estimated 673,209 people live within 50 km of this point.
Nearby, since 11 March 2026
- June 18, 2026 · score 41 · 2.7 km
- April 28, 2026 · score 48 · 4.2 km
- August 11, 2026 · score 72 · 5.0 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 80 % 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) | 41 / 100 |
| Our confidence | 80% |
| Coordinates | 39.0141, -84.6354 |
| Nearest City | Florence (2 km) |
| Population Exposed | 673.2K within 50 km |
| Impact Tier | significant |
| Date | 2026-07-21 — time not reported by the source |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Licking, OH; Lawrence, OH; Cabell, WV; Mason, WV; Clermont, OH; Hamilton, OH; Warren, OH and 13 more areas |
| Headline | Severe Thunderstorm Warning issued July 21 at 2:37PM EDT until July 21 at 3:15PM EDT by NWS Wilmington OH |
| Expires | 2026-07-21T15:15:00-04:00 |
| SenderName | NWS Wilmington OH |
| HasExactCoords | true |
| MergedCount | 16 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.209c4a6fb22aa5de83da348cddf2dc77b77910f9.001.1","noaa_urn:oid:2.49.0.1.840.0.f3d0a46c4af4a07e6e6c8416f9f1c78998192ee8.001.1","noaa_urn:oid:2.49.0.1.840.0.964f40077530df08986f243c3edba4cd0cef6f15.001.1","noaa_urn:oid:2.49.0.1.840.0.779db421ea3743b857cdd2bf418cda7dc8509e3d.001.1","noaa_urn:oid:2.49.0.1.840.0.e52c4e633bb394fd3fa406e38a2a1ea2f963886f.002.1","noaa_urn:oid:2.49.0.1.840.0.70fadcbbf73a67df567f1cd43ee76f5e3ed522a8.001.1","noaa_urn:oid:2.49.0.1.840.0.d1b74e43c4ca77ffad1420a01fcb0ef3441cdff8.002.1","noaa_urn:oid:2.49.0.1.840.0.e7fd96a3abe1ffd779cd8adc0f5944ba285eb1ba.001.1","noaa_urn:oid:2.49.0.1.840.0.ab9e5982dc4e76b1a23dd1d8a5e795e94587a7c5.001.1","noaa_urn:oid:2.49.0.1.840.0.b3340c321057245ed317565f95a3a951821bf697.002.1","noaa_urn:oid:2.49.0.1.840.0.328645a5b7f7413bc12330962e561dc7c63bdd9d.001.1","noaa_urn:oid:2.49.0.1.840.0.b5a714a32b85e4007a2b4aa99a999cc3ee164454.001.1","noaa_urn:oid:2.49.0.1.840.0.10229afbdc7a55115c06e1b4a5e44d49a6190a25.001.1","noaa_urn:oid:2.49.0.1.840.0.6d20a5df8df814eb3281422990220537822d06c8.001.1","noaa_urn:oid:2.49.0.1.840.0.f9d3503a7f3e62a3ee4c0728633132b04200ccab.002.1","noaa_urn:oid:2.49.0.1.840.0.f60a5da5319bc5b98aa1551c7347b410b655fb59.001.1"] |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
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 41/100, near Florence (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.