Calamity
MediumSevere WeatherCalamity Score: 22

Severe Weather in United States

CheyenneUnited 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 1 July 2026 at 02:00 UTC. It is kept here as a record.

No stronger detection stands among the 46 recorded within 20 km of this point since 15 March 2026 — 26 others scored the same. The last comparable one was on 25 June 2026. 16 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Severe Thunderstorm Warning issued June 30 at 7:45PM MDT until June 30 at 8:00PM MDT by NWS Goodland KS

Nearby, since 15 March 2026

How we know

Confirmed by 4 independent sources, including NOAA.

Our own score for this event is 22 out of 100, at 70 % 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 confidence70%
Coordinates39.7773, -101.4980
Nearest CityNorth Platte (162 km)
Impact Tierminor
Timestamp2026-07-01T01:45:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.547fb88a41a885150040d72edb6d8c21

Score Breakdown

35
intensity
0
population
0
cascading
80
historical

Technical Details

EventSevere Thunderstorm Warning
UrgencyImmediate
CertaintyObserved
AreaDescKit Carson, CO; Yuma, CO; Cheyenne, NE; Morrill, NE; Logan, CO and 3 more areas
HeadlineSevere Thunderstorm Warning issued June 30 at 7:45PM MDT until June 30 at 8:00PM MDT by NWS Goodland KS
Expires2026-06-30T20:00:00-06:00
SenderNameNWS Goodland KS
HasExactCoordstrue
MergedCount6
MergedIds["noaa_urn:oid:2.49.0.1.840.0.547fb88a41a885150040d72edb6d8c2100250854.001.1","noaa_urn:oid:2.49.0.1.840.0.6d064960a0627b05a40106126f41a2e161fead23.001.1","noaa_urn:oid:2.49.0.1.840.0.1c787520ac49d34f37f3c06967bedd0c9577c79f.001.1","noaa_urn:oid:2.49.0.1.840.0.12cd193dae92f3e887d414690c46ebac01752dc3.001.1","noaa_urn:oid:2.49.0.1.840.0.3fb8e4b727cb29d7984048a6148627fbfd3e01da.001.1","noaa_urn:oid:2.49.0.1.840.0.b70a5fdf19a170fdf9bc6e5eaec048ffafbc3250.001.1"]
Iem TypeSummaryG
Iem Magnitude62
Iem UnitMPH
Iem City2 ENE Colby
Iem CountyThomas
Iem StateKS
Iem WfoGLD
Iem RemarkSite KKSCOLBY59 measured 62 mph wind gust.
MergedSources[{"id":"iem_H_39.610_-102.310_1782868680000","source":"iem","severity":"low","severityValue":25,"timestamp":1782868680000,"latitude":39.61,"longitude":-102.31},{"id":"iem_G_39.610_-102.310_1782868680000","source":"iem","severity":"low","severityValue":25,"timestamp":1782868680000,"latitude":39.61,"longitude":-102.31},{"id":"iem_G_39.400_-101.010_1782869040000","source":"iem","severity":"low","severityValue":25,"timestamp":1782869040000,"latitude":39.4,"longitude":-101.01}]

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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