Calamity
MediumSevere WeatherCalamity Score: 22

Severe Weather in United States

EffinghamUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 4 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 13 May 2026 at 17:15 UTC. It is kept here as a record.

It is the 18th strongest of the 136 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 12 May 2026. 4 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Flood Warning issued May 12 at 10:09PM EDT until May 15 at 9:12PM EDT by NWS Indianapolis IN

Nearby, since 16 March 2026

How we know

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

Our own score for this event is 22 out of 100, at 61 % 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)22 / 100
Our confidence61%
Coordinates38.9181, -88.6512
Nearest CityMattoon (67 km)
Impact Tierminor
Timestamp2026-05-13T02:09:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.86a131b3d0454a4fb5586e4346a42014

Score Breakdown

35
intensity
0
population
0
cascading
80
historical

Technical Details

EventFlood Warning
UrgencyImmediate
CertaintyObserved
AreaDescGibson, IN; Knox, IN; Daviess, IN; Gibson, IN; Knox, IN; Pike, IN; Clinton, IL and 1 more areas
HeadlineFlood Warning issued May 12 at 10:09PM EDT until May 15 at 9:12PM EDT by NWS Indianapolis IN
Expires2026-05-13T13:15:00-04:00
SenderNameNWS Indianapolis IN
HasExactCoordstrue
MergedCount4
MergedIds["noaa_urn:oid:2.49.0.1.840.0.86a131b3d0454a4fb5586e4346a420144a6e8276.001.1","noaa_urn:oid:2.49.0.1.840.0.86a131b3d0454a4fb5586e4346a420144a6e8276.002.1","noaa_urn:oid:2.49.0.1.840.0.4f326f4fcfae8d72807e1db81b035d836c14a9ad.001.1","noaa_urn:oid:2.49.0.1.840.0.0c23bdecc4d516d7756f75138dd5dbcaced8f3b5.001.1"]

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 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 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.