Right now
The most recent data we hold from NOAA arrived 4 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 25 June 2026 at 19:30 UTC. It is kept here as a record.
No stronger detection stands among the 8 recorded within 20 km of this point since 11 April 2026 — one other scored the same. The last comparable one was on 20 June 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 25 at 1:23PM MDT until June 25 at 1:30PM MDT by NWS Riverton WY
Nearby, since 11 April 2026
- August 30, 2026 · score 22 · 23.8 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, at 58 % 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) | 22 / 100 |
| Our confidence | 58% |
| Coordinates | 42.4821, -108.3870 |
| Nearest City | Rock Springs (120 km) |
| Impact Tier | minor |
| Timestamp | 2026-06-25T19:23:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.8f717319e0a354017dfacc8d0c42b828 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Fremont, WY; Sublette, WY; Sweetwater, WY; Natrona, WY; Fremont, WY |
| Headline | Severe Thunderstorm Warning issued June 25 at 1:23PM MDT until June 25 at 1:30PM MDT by NWS Riverton WY |
| Expires | 2026-06-25T13:30:00-06:00 |
| SenderName | NWS Riverton WY |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.8f717319e0a354017dfacc8d0c42b828b0403fca.001.1","noaa_urn:oid:2.49.0.1.840.0.2f7783aecd5c5a0fe49e3bd51786543c897b4096.001.1","noaa_urn:oid:2.49.0.1.840.0.b64e410b70f383c3993190372cf8bdb8a3acd79c.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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.