Right now
The most recent data we hold from NOAA arrived 9 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 14 May 2026 at 03:00 UTC. It is kept here as a record.
It is the 2nd strongest of the 21 detections recorded within 20 km of this point since 13 May 2026. The last comparable one was on 13 May 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Watch issued May 13 at 7:49PM MDT until May 13 at 8:00PM MDT by NWS Riverton WY
Nearby, since 13 May 2026
- July 3, 2026 · score 22 · 0.0 km
- June 28, 2026 · score 22 · 0.0 km
- June 8, 2026 · score 16 · 0.0 km
How we know
Confirmed by 5 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 71 % 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 | 71% |
| Coordinates | 43.1000, -107.6000 |
| Nearest City | Casper (108 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-14T01:49:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.d0efed1bd9eb595553a2736d7985632ee48b4e84.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Fremont, WY; Lincoln, WY; Park, WY; Sublette, WY; Sweetwater, WY; Teton, WY |
| Headline | Severe Thunderstorm Watch issued May 13 at 7:49PM MDT until May 13 at 8:00PM MDT by NWS Riverton WY |
| Expires | 2026-05-13T21:00:00-06:00 |
| SenderName | NWS Riverton WY |
| HasExactCoords | false |
| Iem TypeSummary | N |
| Iem Magnitude | 63 |
| Iem Unit | MPH |
| Iem City | 13 S Thermopolis |
| Iem County | Hot Springs |
| Iem State | WY |
| Iem Wfo | RIW |
| Iem Remark | AWOS station KTBX Boysen Peak (AWOS). |
| MergedSources | [{"id":"iem_N_43.070_-108.470_1778716260000","source":"iem","severity":"low","severityValue":25,"timestamp":1778716260000,"latitude":43.07,"longitude":-108.47},{"id":"iem_N_43.030_-106.800_1778709120000","source":"iem","severity":"low","severityValue":25,"timestamp":1778709120000,"latitude":43.03,"longitude":-106.8},{"id":"iem_N_43.090_-107.320_1778710620000","source":"iem","severity":"low","severityValue":25,"timestamp":1778710620000,"latitude":43.09,"longitude":-107.32},{"id":"iem_N_43.470_-108.230_1778717700000","source":"iem","severity":"low","severityValue":25,"timestamp":1778717700000,"latitude":43.47,"longitude":-108.23}] |
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.