Calamity
MediumSevere WeatherCalamity Score: 48

Severe Weather in United States

PottawattamieUnited StatesIEM

Right now

The most recent data we hold from IEM arrived 6 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.

Reported by IEM 143 days ago.

It is the 3rd strongest of the 29 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 7 April 2026.

What the source measured

IEM reported: Relayed through emergency management.

An estimated 604,158 people live within 50 km of this point.

Nearby, since 16 March 2026

How we know

Confirmed by 2 independent sources, including IEM.

Our own score for this event is 48 out of 100, at 63 % 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)48 / 100
Our confidence63%
Coordinates41.3600, -95.4600
Nearest CityCouncil Bluffs (35 km)
Population Exposed604.2K within 50 km
Impact Tiersignificant
Timestamp2026-04-23T21:48:00.000Z
Sourcehttps://mesonet.agron.iastate.edu/lsr/

Score Breakdown

35
intensity
85
population
0
cascading
80
historical

Technical Details

TypeSummaryH
Magnitude1
UnitInch
City5 NW Oakland
CountyPottawattamie
StateIA
WfoOAX
RemarkRelayed through emergency management.
Google News RssFeedweather
Google News SourceNameKETV
MergedSources[{"id":"gnews_weather_493611_173","source":"google_news","severity":"medium","severityValue":40,"timestamp":1777002300000,"latitude":41.26,"longitude":-95.94}]

Safety Information

Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.

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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