Calamity
MediumSevere WeatherCalamity Score: 52

Severe Weather near Westerville

DelawareUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 9 minutes 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 6 June 2026 at 22:00 UTC. It is kept here as a record.

No stronger detection stands among the 52 recorded within 20 km of this point since 22 March 2026 — 27 others scored the same. 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 June 6 at 5:48PM EDT until June 6 at 6:00PM EDT by NWS Wilmington OH

An estimated 1,355,573 people live within 50 km of this point.

Nearby, since 22 March 2026

How we know

One source: NOAA. Not yet confirmed by a second, independent source.

Our own score for this event is 52 out of 100, at 80 % 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

TypeSevere Weather
SeverityMedium
Calamity Score (ours)52 / 100
Our confidence80%
Coordinates40.1836, -82.7893
Nearest CityWesterville (13 km)
Population Exposed1.4M within 50 km
Impact Tiersignificant
Timestamp2026-06-06T21:48:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.2485d62459be6c5a6cade67196a4a80a

Score Breakdown

35
intensity
100
population
0
cascading
80
historical

Technical Details

EventSevere Thunderstorm Warning
UrgencyImmediate
CertaintyObserved
AreaDescDarke, OH; Montgomery, OH; Preble, OH; Delaware, OH; Franklin, OH; Licking, OH; Guernsey, OH; Muskingum, OH; Noble, OH and 3 more areas
HeadlineSevere Thunderstorm Warning issued June 6 at 5:48PM EDT until June 6 at 6:00PM EDT by NWS Wilmington OH
Expires2026-06-06T18:00:00-04:00
SenderNameNWS Wilmington OH
HasExactCoordstrue
MergedCount6
MergedIds["noaa_urn:oid:2.49.0.1.840.0.2485d62459be6c5a6cade67196a4a80a2ed4cd56.001.1","noaa_urn:oid:2.49.0.1.840.0.8458e0a198434c6a78a244f431c8ac25ef5cb453.001.1","noaa_urn:oid:2.49.0.1.840.0.52b3fa7f661d622905db979624875aa3e2f2e268.001.1","noaa_urn:oid:2.49.0.1.840.0.e86232c74a7a04cb02df4bb1687044ee4259cf6f.001.1","noaa_urn:oid:2.49.0.1.840.0.b8d80e377540ffbcf5e5219a17c5ab3251b35a7c.001.1","noaa_urn:oid:2.49.0.1.840.0.002ae32e7d0117401d7f0627b541dce120fffe6b.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 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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