Calamity
CriticalSevere WeatherCalamity Score: 46

Severe Weather in United States

RowanUnited StatesNOAA

This alert expired on 11 August 2026 at 21:30 UTC. It is kept here as a record.

No stronger detection stands among the 41 recorded within 20 km of this point since 15 March 2026 — 4 others scored the same. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Tornado Warning issued August 11 at 5:03PM EDT until August 11 at 5:30PM EDT by NWS Jackson KY

How we know

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

Our own score for this event is 46 out of 100, at 60 % 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
SeverityCritical
Calamity Score (ours)46 / 100
Our confidence60%
Coordinates38.2925, -83.4051
Nearest CityPortsmouth (60 km)
Impact Tierminor
Timestamp2026-08-11T21:03:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.0b3348d12ca1dab0a430c03c409c8072

Score Breakdown

95
intensity
0
population
0
cascading
80
historical

Technical Details

EventTornado Warning
UrgencyImmediate
CertaintyObserved
AreaDescElliott, KY; Fleming, KY; Morgan, KY; Rowan, KY; Lewis, KY; Bath, KY; Montgomery, KY
HeadlineTornado Warning issued August 11 at 5:03PM EDT until August 11 at 5:30PM EDT by NWS Jackson KY
Expires2026-08-11T17:30:00-04:00
SenderNameNWS Jackson KY
HasExactCoordstrue
MergedCount3
MergedIds["noaa_urn:oid:2.49.0.1.840.0.0b3348d12ca1dab0a430c03c409c80729df1011f.001.1","noaa_urn:oid:2.49.0.1.840.0.e3f8f544353bffff123e70877b7d83c1afd04ad5.001.1","noaa_urn:oid:2.49.0.1.840.0.847cd520a2a12179790693e6ffe1baf3496f6d9c.001.1"]

Safety Information

If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.

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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Calamity.live data shows a weather event with CalamityScore 46/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.