Right now
The most recent data we hold from NOAA arrived 6 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
16 other detections within 20 km in the last 24 hours, the nearest <1 km from here.
This alert expired on 6 September 2026 at 00:01 UTC. It is kept here as a record.
No stronger detection stands among the 65 recorded within 20 km of this point since 23 April 2026 — 4 others scored the same. Another comparable one was recorded here earlier the same day.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued September 5 at 5:52PM MDT until September 5 at 6:00PM MDT by NWS Cheyenne WY
Nearby, since 23 April 2026
- July 4, 2026 · score 22 · 11.1 km
- July 28, 2026 · score 22 · 20.4 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 28 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 v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | High |
| Calamity Score (ours) | 28 / 100 |
| Our confidence | 70% |
| Coordinates | 41.4006, -102.8418 |
| Nearest City | Cheyenne (168 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-05T23:52:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.8b0d8ce28011d280c5b2c26f28ed9baf5bcb5e55.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Box Butte, NE; Morrill, NE; Sedgwick, CO; Morrill, NE and 3 more areas |
| Headline | Severe Thunderstorm Warning issued September 5 at 5:52PM MDT until September 5 at 6:00PM MDT by NWS Cheyenne WY |
| Expires | 2026-09-05T18:01:00-06:00 |
| SenderName | NWS Cheyenne WY |
| HasExactCoords | true |
| MergedCount | 7 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.8b0d8ce28011d280c5b2c26f28ed9baf5bcb5e55.001.1","noaa_urn:oid:2.49.0.1.840.0.941bc470334d489cf6efa487b085b16f4a007cb8.002.1","noaa_urn:oid:2.49.0.1.840.0.f17e6c1b459547adaa1643de28f4df51914d4b11.001.1","noaa_urn:oid:2.49.0.1.840.0.fa7f1a3dc60e615644a7bf2e7dec550e13c3e937.001.1","noaa_urn:oid:2.49.0.1.840.0.a5334b4a22d044bf56f6d2f789d478fd2abe1638.001.1","noaa_urn:oid:2.49.0.1.840.0.1a5dbcc8cf0e15f36092fb13bc3efa8e49d782fe.001.1","noaa_urn:oid:2.49.0.1.840.0.6b0a85ed8f6745c87c4c1aa922d217c51433ac72.001.1"] |
| Spc ReportType | hail |
| Spc Speed | 125 |
| Spc Location | 3 N Bridgeport |
| Spc County | Morrill |
| Spc State | NE |
| Spc Comments | Trained spotter reported 1.25 inch hail north of Bridgeport. (CYS) |
| Iem TypeSummary | H |
| Iem Magnitude | 1.25 |
| Iem Unit | Inch |
| Iem City | 3 N Bridgeport |
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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 28/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.