Calamity
MediumSevere WeatherCalamity Score: 22

Severe Weather in United States

CheyenneUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 3 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 30 May 2026 at 00:45 UTC. It is kept here as a record.

No stronger detection stands among the 76 recorded within 20 km of this point since 15 March 2026 — 33 others scored the same. The last comparable one was on 29 May 2026. 5 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Severe Thunderstorm Warning issued May 29 at 7:35PM CDT until May 29 at 7:45PM CDT by NWS Goodland KS

Nearby, since 15 March 2026

How we know

Confirmed by 5 independent sources, including NOAA.

Our own score for this event is 22 out of 100, at 67 % 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 confidence67%
Coordinates39.8417, -101.6417
Nearest CityNorth Platte (160 km)
Impact Tierminor
Timestamp2026-05-30T00:35:00.000Z
Sourcehttps://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.968f284e97c70e91f78014df3e6dccf1455026b5.001.1

Score Breakdown

35
intensity
0
population
0
cascading
80
historical

Technical Details

EventSevere Thunderstorm Warning
UrgencyImmediate
CertaintyObserved
AreaDescCheyenne, KS
HeadlineSevere Thunderstorm Warning issued May 29 at 7:35PM CDT until May 29 at 7:45PM CDT by NWS Goodland KS
Expires2026-05-29T19:45:00-05:00
SenderNameNWS Goodland KS
HasExactCoordstrue
Iem TypeSummaryG
Iem Magnitude60
Iem UnitMPH
Iem City5 N Goodland
Iem CountySherman
Iem StateKS
Iem WfoGLD
Iem RemarkNWS employee reported estimated 50-60mph gusts. There was localized blowing dust from a feedlot nearby, reducing visibility to around a mile.
MergedSources[{"id":"iem_G_40.020_-101.920_1780098000000","source":"iem","severity":"low","severityValue":25,"timestamp":1780098000000,"latitude":40.02,"longitude":-101.92},{"id":"iem_G_39.520_-101.930_1780097520000","source":"iem","severity":"low","severityValue":25,"timestamp":1780097520000,"latitude":39.52,"longitude":-101.93},{"id":"iem_N_39.520_-101.930_1780097700000","source":"iem","severity":"low","severityValue":25,"timestamp":1780097700000,"latitude":39.52,"longitude":-101.93},{"id":"iem_G_39.420_-101.710_1780097940000","source":"iem","severity":"low","severityValue":25,"timestamp":1780097940000,"latitude":39.42,"longitude":-101.71}]

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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