Calamity
CriticalSevere WeatherCalamity Score: 46

Severe Weather in United States

UnionUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 2 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 11 June 2026 at 12:00 UTC. It is kept here as a record.

No stronger detection stands among the 14 recorded within 20 km of this point since 16 March 2026 — 3 others scored the same. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Tornado Warning issued June 11 at 6:51AM CDT until June 11 at 7:00AM CDT by NWS Des Moines IA

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 46 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
SeverityCritical
Calamity Score (ours)46 / 100
Our confidence61%
Coordinates40.9983, -94.2683
Nearest CityIndianola (72 km)
Impact Tierminor
Timestamp2026-06-11T11:51:00.000Z
Sourcehttps://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.2b564ae3d3522921bad9f2bbf9892d8a36d81a46.002.1

Score Breakdown

95
intensity
0
population
0
cascading
80
historical

Technical Details

EventTornado Warning
UrgencyImmediate
CertaintyObserved
AreaDescAdair, IA; Madison, IA; Union, IA
HeadlineTornado Warning issued June 11 at 6:51AM CDT until June 11 at 7:00AM CDT by NWS Des Moines IA
Expires2026-06-11T07:00:00-05:00
SenderNameNWS Des Moines IA
HasExactCoordstrue

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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