This alert expired on 11 August 2026 at 14:30 UTC. It is kept here as a record.
It is the 2nd strongest of the 59 detections recorded within 20 km of this point since 23 March 2026. Another comparable one was recorded here earlier the same day. 6 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 11 at 10:13AM EDT until August 11 at 10:30AM EDT by NWS Wilmington OH
An estimated 1,317,785 people live within 50 km of this point.
Nearby, since 23 March 2026
- May 20, 2026 · score 52 · 2.7 km
- August 16, 2026 · score 52 · 5.0 km
- May 20, 2026 · score 52 · 15.4 km
How we know
Confirmed by 5 independent sources, including NOAA.
Our own score for this event is 52 out of 100, at 92 % 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) | 52 / 100 |
| Our confidence | 92% |
| Coordinates | 39.8773, -82.7059 |
| Nearest City | Pickerington (4 km) |
| Population Exposed | 1.3M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-11T14:13:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.ba408176ce0ac55db85cb7915670fdaa |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Delaware, OH; Franklin, OH; Pickaway, OH; Fairfield, OH; Hocking, OH; Licking, OH |
| Headline | Severe Thunderstorm Warning issued August 11 at 10:13AM EDT until August 11 at 10:30AM EDT by NWS Wilmington OH |
| Expires | 2026-08-11T10:30:00-04:00 |
| SenderName | NWS Wilmington OH |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.ba408176ce0ac55db85cb7915670fdaa37e7f9fd.001.1","noaa_urn:oid:2.49.0.1.840.0.0d908e5a30454cdfacee815eb53efd5daec8b862.001.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 65 |
| Iem Unit | MPH |
| Iem City | 1 E Hilliard |
| Iem County | Franklin |
| Iem State | OH |
| Iem Wfo | ILN |
| Google News RssFeed | weather |
| Google News SourceName | nbc4i.com |
| MergedSources | [{"id":"iem_F_39.930_-82.980_1786440000000","source":"iem","severity":"low","severityValue":25,"timestamp":1786440000000,"latitude":39.93,"longitude":-82.98},{"id":"iem_G_40.040_-83.140_1786457100000","source":"iem","severity":"low","severityValue":25,"timestamp":1786457100000,"latitude":40.04,"longitude":-83.14},{"id":"gnews_weather_496238_216","source":"google_news","severity":"medium","severityValue":40,"timestamp":1786456920000,"latitude":39.96,"longitude":-83},{"id":"gnews_weather_496234_225","source":"google_news","severity":"medium","severityValue":40,"timestamp":1786444426000,"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 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.
Want to know when something happens near Pickerington?
Calamity.live data shows a weather event with CalamityScore 52/100, near Pickerington (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.