Right now
The most recent data we hold from NOAA arrived 42 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 01:15 UTC. It is kept here as a record.
It is the 42nd strongest of the 89 detections recorded within 20 km of this point since 6 May 2026. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 8 at 6:38PM MDT until June 8 at 7:15PM MDT by NWS Cheyenne WY
Nearby, since 6 May 2026
- June 25, 2026 · score 46 · 15.2 km
- May 21, 2026 · score 46 · 17.5 km
- August 12, 2026 · score 22 · 19.3 km
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.
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) | 22 / 100 |
| Legacy data-support index | 0.60/1 |
| Coordinates | 40.5302, -103.4359 |
| Nearest City | Evans (107 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-06-09T00:38:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.33fe191a381ea15816d1c92a555e9e8a |
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: 2026-06-09T00:38:00.000Z.
First archived: 2026-06-09T00:41:02.354Z. 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 | Goshen, WY; Laramie, WY; Platte, WY; Scotts Bluff, NE; Morrill, NE; Scotts Bluff, NE and 5 more areas |
| Headline | Severe Thunderstorm Warning issued June 8 at 6:38PM MDT until June 8 at 7:15PM MDT by NWS Cheyenne WY |
| Expires | 2026-06-08T19:15:00-06:00 |
| SenderName | NWS Cheyenne WY |
| HasExactCoords | true |
| MergedCount | 8 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.33fe191a381ea15816d1c92a555e9e8a54b4d2a0.001.1","noaa_urn:oid:2.49.0.1.840.0.f77c3b68c9f2293b9692d24e8b435babbe18f0e3.001.1","noaa_urn:oid:2.49.0.1.840.0.794e8c4a43f33a9ad026e4118a181f16012f9809.001.1","noaa_urn:oid:2.49.0.1.840.0.91f4336b43acada3e95ea39fc17f2a68c0318f37.002.1","noaa_urn:oid:2.49.0.1.840.0.2647d34f7dc4e8c418835cb376e98996ab1e7b8b.001.1","noaa_urn:oid:2.49.0.1.840.0.b2715a545020259d03c1beaf2f20e13dbaa2d4d9.002.1","noaa_urn:oid:2.49.0.1.840.0.87f0615d3afc5d56e52a35fb84bd5009203f86f6.001.1","noaa_urn:oid:2.49.0.1.840.0.9716924434c04894c266c4348cb5dbffef9bd293.001.1"] |
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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