Right now
The most recent data we hold from NOAA arrived 5 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 26 June 2026 at 00:45 UTC. It is kept here as a record.
No stronger detection stands among the 81 recorded within 20 km of this point since 17 March 2026 — 4 others scored the same. 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 25 at 6:08PM MDT until June 25 at 6:45PM MDT by NWS Cheyenne WY
Urban PEI: 236,056 within a heuristic 50 km radius; not unique people.
Nearby, since 17 March 2026
- June 26, 2026 · score 43 · 8.4 km
- September 7, 2026 · score 37 · 18.9 km
- August 27, 2026 · score 43 · 23.0 km
How we know
4 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 43 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) | 43 / 100 |
| Legacy data-support index | 0.88/1 |
| Coordinates | 40.9297, -104.8023 |
| Nearest City | Cheyenne (23 km) |
| Urban exposure index (PEI) | 236.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-26T00:08:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.f85ea2c5bc24803952ad929ebab8a8e5 |
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: 2026-06-26T00:08:00.000Z.
First archived: 2026-06-26T00:16:45.385Z. 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 | Laramie, WY; Larimer, CO; Weld, CO |
| Headline | Severe Thunderstorm Warning issued June 25 at 6:08PM MDT until June 25 at 6:45PM MDT by NWS Cheyenne WY |
| Expires | 2026-06-25T18:45:00-06:00 |
| SenderName | NWS Cheyenne WY |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.f85ea2c5bc24803952ad929ebab8a8e5dcb19b33.002.1","noaa_urn:oid:2.49.0.1.840.0.59a7140fd91a11c051a031a0e18002051ea00813.001.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 70 |
| Iem Unit | MPH |
| Iem City | 4 NNW Vedauwoo |
| Iem County | Albany |
| Iem State | WY |
| Iem Wfo | CYS |
| MergedSources | [{"id":"iem_H_41.270_-105.100_1782430740000","source":"iem","severity":"low","severityValue":25,"timestamp":1782430740000,"latitude":41.27,"longitude":-105.1},{"id":"iem_G_41.310_-105.450_1782429000000","source":"iem","severity":"low","severityValue":25,"timestamp":1782429000000,"latitude":41.31,"longitude":-105.45},{"id":"iem_G_41.200_-105.430_1782429600000","source":"iem","severity":"low","severityValue":25,"timestamp":1782429600000,"latitude":41.2,"longitude":-105.43}] |
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.
Review the area, threshold and delivery channel in your account.
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