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 9 June 2026 at 03:15 UTC. It is kept here as a record.
It is the 26th strongest of the 33 detections recorded within 20 km of this point since 31 May 2026. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 8 at 8:22PM MDT until June 8 at 9:15PM MDT by NWS Cheyenne WY
Nearby, since 31 May 2026
- July 23, 2026 · score 22 · 16.2 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 16 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
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 16 / 100 |
| Our confidence | 60% |
| Coordinates | 40.8596, -102.5309 |
| Nearest City | North Platte (151 km) |
| Impact Tier | minor |
| Timestamp | 2026-06-09T02:22:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.e3a4dbe2c2d00cfd9027a6ec7760b081 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Morrill, NE; Box Butte, NE; Morrill, NE; Dundy, NE and 4 more areas |
| Headline | Severe Thunderstorm Warning issued June 8 at 8:22PM MDT until June 8 at 9:15PM MDT by NWS Cheyenne WY |
| Expires | 2026-06-08T21:15:00-06:00 |
| SenderName | NWS Cheyenne WY |
| HasExactCoords | true |
| MergedCount | 7 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.e3a4dbe2c2d00cfd9027a6ec7760b08166225292.001.1","noaa_urn:oid:2.49.0.1.840.0.c39c271a594a9b4bed5085434fa8c7583e3e321c.001.1","noaa_urn:oid:2.49.0.1.840.0.5ba225b7b41fef44c06350fd4442078c06a61e89.002.1","noaa_urn:oid:2.49.0.1.840.0.c496498e737f8232bfebdd6d01fca4a6234a39ff.001.1","noaa_urn:oid:2.49.0.1.840.0.401d2cf93b1f1be9964166b87ed401d20a988b9d.001.1","noaa_urn:oid:2.49.0.1.840.0.d543a635316536124b6bf238ca8ad095b38d8755.001.1","noaa_urn:oid:2.49.0.1.840.0.bdc6f3a8ed0d38d435a27aabc2de7398c8fe4b24.001.1"] |
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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