This alert expired on 11 August 2026 at 15:30 UTC. It is kept here as a record.
It is the 8th strongest of the 92 detections recorded within 20 km of this point since 12 March 2026. Another comparable one was recorded here earlier the same day. 33 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 11 at 10:38AM EDT until August 11 at 11:30AM EDT by NWS Wilmington OH
An estimated 185,398 people live within 50 km of this point.
Nearby, since 12 March 2026
- May 20, 2026 · score 43 · 3.3 km
- July 7, 2026 · score 43 · 8.0 km
- May 27, 2026 · score 43 · 15.7 km
How we know
Confirmed by 4 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 91 % 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) | 43 / 100 |
| Our confidence | 91% |
| Coordinates | 39.8656, -82.3091 |
| Nearest City | Newark (23 km) |
| Population Exposed | 185.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-11T14:38:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.a14a917acec349651c54ce68f7481982 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Fairfield, OH; Hocking, OH; Pickaway, OH; Ross, OH; Coshocton, OH; Muskingum, OH; Noble, OH; Perry, OH and 2 more areas |
| Headline | Severe Thunderstorm Warning issued August 11 at 10:38AM EDT until August 11 at 11:30AM EDT by NWS Wilmington OH |
| Expires | 2026-08-11T11:30:00-04:00 |
| SenderName | NWS Wilmington OH |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a14a917acec349651c54ce68f7481982df904d4b.001.1","noaa_urn:oid:2.49.0.1.840.0.7379bcfcfd495cbcd2c8e2f47da7eeb205c8622b.001.1","noaa_urn:oid:2.49.0.1.840.0.4694bd2ca9977992718fa2c6266a54203844bdfa.001.1","noaa_urn:oid:2.49.0.1.840.0.ced46259fb19e09c8348052bdb8b8e1efeda2611.001.1","noaa_urn:oid:2.49.0.1.840.0.4a45399920cd0b3977f9d39294b4fb8d6059b9a9.001.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 65 |
| Iem Unit | MPH |
| Iem City | 1 E Hilliard |
| Iem County | Franklin |
| Iem State | OH |
| Iem Wfo | ILN |
| 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_D_39.950_-82.010_1786451940000","source":"iem","severity":"low","severityValue":25,"timestamp":1786451940000,"latitude":39.95,"longitude":-82.01},{"id":"iem_G_40.040_-83.140_1786457100000","source":"iem","severity":"low","severityValue":25,"timestamp":1786457100000,"latitude":40.04,"longitude":-83.14}] |
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 Newark?
Calamity.live data shows a weather event with CalamityScore 43/100, near Newark (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.