Right now
The most recent data we hold from NOAA arrived 6 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
14 other detections within 20 km in the last 24 hours, the nearest <1 km from here.
This alert expired on 10 September 2026 at 02:00 UTC. It is kept here as a record.
It is the 14th strongest of the 85 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 8 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued September 9 at 9:13PM EDT until September 9 at 10:00PM EDT by NWS Wilmington OH
An estimated 1,190,241 people live within 50 km of this point.
Nearby, since 15 March 2026
- September 10, 2026 · score 46 · 0.0 km
- September 10, 2026 · score 46 · 3.0 km
- May 20, 2026 · score 52 · 5.9 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 46 out of 100, at 86 % 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) | 46 / 100 |
| Our confidence | 86% |
| Coordinates | 39.8696, -82.4638 |
| Nearest City | Lancaster (21 km) |
| Population Exposed | 1.2M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-10T01:13:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.1a1c299656208ab72abfcc4f4ae6c4b702d10d17.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Fairfield, OH; Perry, OH; Licking, OH |
| Headline | Severe Thunderstorm Warning issued September 9 at 9:13PM EDT until September 9 at 10:00PM EDT by NWS Wilmington OH |
| Expires | 2026-09-09T22:00:00-04:00 |
| SenderName | NWS Wilmington OH |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.1a1c299656208ab72abfcc4f4ae6c4b702d10d17.001.1","noaa_urn:oid:2.49.0.1.840.0.7782d3017921f1e5dca597c4352c4c779d82eda6.001.1","noaa_urn:oid:2.49.0.1.840.0.f39a62b35a3fcb07f43dfd21755cdfab08b8ae9b.002.1"] |
| Google News RssFeed | weather |
| Google News SourceName | The Columbus Dispatch |
| MergedSources | [{"id":"gnews_weather_496944_282","source":"google_news","severity":"medium","severityValue":40,"timestamp":1789000440000,"latitude":39.96,"longitude":-83}] |
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 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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