Calamity
MediumSevere WeatherCalamity Score: 22

Severe Weather in United States

SewardUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 5 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.

4 other detections within 20 km in the last 24 hours, the nearest 16 km from here.

This alert expired on 6 June 2026 at 02:00 UTC. It is kept here as a record.

It is the 12th strongest of the 58 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 10 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Severe Thunderstorm Warning issued June 5 at 8:03PM CDT until June 5 at 9:00PM CDT by NWS Omaha/Valley NE

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 60 % 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 confidence60%
Coordinates40.7422, -97.3092
Nearest CityLincoln (54 km)
Impact Tierminor
Timestamp2026-06-06T01:03:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.31fbe292ed2e9db11b381b57e61cfc5a

Score Breakdown

35
intensity
0
population
0
cascading
80
historical

Technical Details

EventSevere Thunderstorm Warning
UrgencyImmediate
CertaintyObserved
AreaDescLancaster, NE; Hall, NE; Hamilton, NE; Merrick, NE; Polk, NE; York, NE; Gage, NE and 1 more areas
HeadlineSevere Thunderstorm Warning issued June 5 at 8:03PM CDT until June 5 at 9:00PM CDT by NWS Omaha/Valley NE
Expires2026-06-05T21:00:00-05:00
SenderNameNWS Omaha/Valley NE
HasExactCoordstrue
MergedCount4
MergedIds["noaa_urn:oid:2.49.0.1.840.0.31fbe292ed2e9db11b381b57e61cfc5a02e1a526.001.1","noaa_urn:oid:2.49.0.1.840.0.e45ea07d03e572e5c6dc61c03888d2c5acf4740e.001.1","noaa_urn:oid:2.49.0.1.840.0.4a85761c087751247100159580f57624ccc56707.001.1","noaa_urn:oid:2.49.0.1.840.0.6135a06a5d490e48ed52f7af5512ecaa6f904d38.001.1"]

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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