Calamity
mediumSevere weatherCalamity Score: 52

Severe Weather near Greenfield

HancockUnited StatesNOAA

This alert expired on 13 August 2026 at 00:30 UTC. It is kept here as a record.

No stronger detection stands among the 196 recorded within 20 km of this point since 15 March 2026 — 60 others scored the same. Another comparable one was recorded here earlier the same day. 62 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Flash Flood Warning issued August 12 at 4:59PM EDT until August 12 at 8:30PM EDT by NWS Indianapolis IN

An estimated 1,370,832 people live within 50 km of this point.

Nearby, since 15 March 2026

How we know

Confirmed by 45 independent sources, including NOAA.

Our own score for this event is 52 out of 100, at 88 % 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)52 / 100
Our confidence88%
Coordinates39.7589, -85.6557
Nearest CityGreenfield (10 km)
Population Exposed1.4M within 50 km
Impact Tiersignificant
Timestamp2026-08-12T20:59:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.1a0a05a7ce0b4d8e308d6aa6789a7965

Score Breakdown

35
intensity
100
population
0
cascading
80
historical

Technical Details

EventFlash Flood Warning
UrgencyImmediate
CertaintyLikely
AreaDescBartholomew, IN; Madison, IN; Johnson, IN and 15 more areas
HeadlineFlash Flood Warning issued August 12 at 4:59PM EDT until August 12 at 8:30PM EDT by NWS Indianapolis IN
Expires2026-08-12T20:30:00-04:00
SenderNameNWS Indianapolis IN
HasExactCoordstrue
MergedCount18
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Iem TypeSummaryF
Iem CityMuncie
Iem CountyDelaware
Iem StateIN
Iem WfoIND
Iem RemarkWater is above the curb and over the sidewalk in a residential neighborhood on the south side of the street. Water is encroaching on homes.
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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 52/100, near Greenfield (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.