Calamity
mediumSevere weatherCalamity Score: 39

Severe Weather in United States

DecaturUnited StatesNOAA

This alert expired on 24 May 2026 at 20:15 UTC. It is kept here as a record.

It is the 4th strongest of the 71 detections recorded within 20 km of this point since 12 March 2026. Another comparable one was recorded here earlier the same day. 14 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Flood Warning issued May 24 at 1:05AM EDT until May 26 at 5:00PM EDT by NWS Indianapolis IN

An estimated 65,823 people live within 50 km of this point.

Nearby, since 12 March 2026

How we know

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

Our own score for this event is 39 out of 100, at 80 % confidence.

The score is ours, computed from intensity, exposed population and local history — not the source’s.

Event Data

TypeSevere weather
Severitymedium
Calamity Score (ours)39 / 100
Our confidence80%
Coordinates39.2862, -85.4183
Nearest CityShelbyville (41 km)
Population Exposed65.8K within 50 km
Impact Tiersignificant
Timestamp2026-05-24T21:00:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.270b48037c8f0ea3be57ad4b111ea6b8

Score Breakdown

35
intensity
55
population
0
cascading
80
historical

Technical Details

EventFlood Warning
UrgencyImmediate
CertaintyObserved
AreaDescJackson, IN; Lawrence, IN; Washington, IN; Daviess, IN; Gibson, IN; Knox, IN; Pike, IN; Daviess, IN; Greene, IN; Knox, IN and 10 more areas
HeadlineFlood Warning issued May 24 at 1:05AM EDT until May 26 at 5:00PM EDT by NWS Indianapolis IN
Expires2026-05-24T16:15:00-04:00
SenderNameNWS Indianapolis IN
HasExactCoordstrue
MergedCount17
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Safety Information

During flooding: never walk, swim, or drive through floodwaters. Six inches of moving water can knock you down, and one foot of water can sweep away a vehicle. Move to higher ground if waters rise. After flooding, avoid contact with floodwater which may contain sewage, chemicals, or debris. Follow local emergency service guidance.

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.

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Calamity.live data shows a weather event with CalamityScore 39/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.