Right now
The most recent data we hold from NOAA arrived 59 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 02:30 UTC. It is kept here as a record.
It is the 47th strongest of the 60 detections recorded within 20 km of this point since 30 May 2026. Another comparable one was recorded here earlier the same day. 6 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 8 at 7:53PM MDT until June 8 at 8:30PM MDT by NWS Cheyenne WY
Nearby, since 30 May 2026
- July 23, 2026 · score 22 · 13.0 km
- July 23, 2026 · score 22 · 14.4 km
- August 13, 2026 · score 22 · 15.2 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.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
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 |
| Legacy data-support index | 0.60/1 |
| Coordinates | 40.6921, -102.8098 |
| Nearest City | Evans (163 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-06-09T01:53:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.bc4404df01ac0d86f13c4cd675a5c96a |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-06-09T01:53:00.000Z.
First archived: 2026-06-09T01:58:07.984Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Banner, NE; Scotts Bluff, NE; Goshen, WY; Chase, NE; Deuel, NE; Garden, NE; Keith, NE; Perkins, NE; Sheridan, NE and 7 more areas |
| Headline | Severe Thunderstorm Warning issued June 8 at 7:53PM MDT until June 8 at 8:30PM MDT by NWS Cheyenne WY |
| Expires | 2026-06-08T20:30:00-06:00 |
| SenderName | NWS Cheyenne WY |
| HasExactCoords | true |
| MergedCount | 13 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.bc4404df01ac0d86f13c4cd675a5c96afa6d3caa.001.1","noaa_urn:oid:2.49.0.1.840.0.e7ac34b40a4478e2fd17dee27d7de852d25fb52f.001.1","noaa_urn:oid:2.49.0.1.840.0.1ae764eeb4f2080f6a5407077f5f8c01cd0448f6.001.1","noaa_urn:oid:2.49.0.1.840.0.6f591345713e715fec27c09f4202f2c270585d06.001.1","noaa_urn:oid:2.49.0.1.840.0.87e1bec953cc16d9d7f4bff901492a4c03c75d77.001.1","noaa_urn:oid:2.49.0.1.840.0.417b2c1e91362ea5eb63aef2f34598f86e163797.001.1","noaa_urn:oid:2.49.0.1.840.0.33a4d53c45e7eeccde460a2b88d6e6b8406ef015.001.1","noaa_urn:oid:2.49.0.1.840.0.bb7dba75df4295bf1f06864a05c0518189dd0f99.001.1","noaa_urn:oid:2.49.0.1.840.0.7ba6d6c728f259711f803e7bf19df08f7de314cb.001.1","noaa_urn:oid:2.49.0.1.840.0.658445a4e74678dc61372449c7f531523fab4a62.001.1","noaa_urn:oid:2.49.0.1.840.0.699d01261903d40c6cf1d55150c98b429d9215df.001.1","noaa_urn:oid:2.49.0.1.840.0.c1dd54dc1c8339d83cea57fc5d46f3550688f0ed.001.1","noaa_urn:oid:2.49.0.1.840.0.10eb82346e6bf7238b83c1e7bc9bc0cccfa12f6b.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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