Calamity
MediumSevere WeatherCalamity Score: 43

Severe Weather in United States

SewardUnited StatesIEM

Right now

The most recent data we hold from IEM arrived 34 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 104 days ago.

It is the 5th strongest of the 38 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 15 more were recorded here in the fortnight before it.

What the source measured

IEM reported: Trained spotter report of hail up to 1 inch in diameter and wind gusts estimated at 55 mph.

An estimated 294,757 people live within 50 km of this point.

Nearby, since 16 March 2026

How we know

Confirmed by 3 independent sources, including IEM.

Our own score for this event is 43 out of 100, at 68 % 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)43 / 100
Our confidence68%
Coordinates40.9000, -97.1700
Nearest CityLincoln (44 km)
Population Exposed294.8K within 50 km
Impact Tiersignificant
Timestamp2026-05-31T03:16:00.000Z
Sourcehttps://mesonet.agron.iastate.edu/lsr/

Score Breakdown

35
intensity
70
population
0
cascading
80
historical

Technical Details

TypeSummaryH
Magnitude1
UnitInch
City3 E Tamora
CountySeward
StateNE
WfoOAX
RemarkTrained spotter report of hail up to 1 inch in diameter and wind gusts estimated at 55 mph.
Google News RssFeedweather
Google News SourceNameKOLN | Nebraska Local News, Weather, Sports | Lincoln, NE
MergedSources[{"id":"gnews_weather_494494_121","source":"google_news","severity":"medium","severityValue":40,"timestamp":1780179720000,"latitude":40.8,"longitude":-96.67},{"id":"gnews_weather_494494_132","source":"google_news","severity":"medium","severityValue":40,"timestamp":1780181780000,"latitude":40.8,"longitude":-96.67}]

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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