Right now
The most recent data we hold from NOAA arrived 8 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 03:00 UTC. It is kept here as a record.
It is the 26th strongest of the 47 detections recorded within 20 km of this point since 31 May 2026. Another comparable one was recorded here earlier the same day. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 30 at 8:25PM MDT until June 30 at 9:00PM MDT by NWS Cheyenne WY
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 58 % 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
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 22 / 100 |
| Our confidence | 58% |
| Coordinates | 41.0813, -102.5206 |
| Nearest City | North Platte (147 km) |
| Impact Tier | minor |
| Timestamp | 2026-07-01T02:25:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.13950b21c159cf2e32e0dfc4e0193743 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Cheyenne, NE; Deuel, NE; Garden, NE; Keith, NE; Perkins, NE; Logan, CO; Sedgwick, CO |
| Headline | Severe Thunderstorm Warning issued June 30 at 8:25PM MDT until June 30 at 9:00PM MDT by NWS Cheyenne WY |
| Expires | 2026-06-30T21:00:00-06:00 |
| SenderName | NWS Cheyenne WY |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.13950b21c159cf2e32e0dfc4e01937439c070d0a.001.1","noaa_urn:oid:2.49.0.1.840.0.021b19f0903b305c45347699f752dab8a2900d91.001.1","noaa_urn:oid:2.49.0.1.840.0.2feeb3cb301e4a9b2db4e6ec3a22f4a27b4e8ce2.001.1"] |
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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