This alert expired on 14 May 2026 at 02:00 UTC. It is kept here as a record.
No stronger detection stands among the 21 recorded within 20 km of this point since 13 March 2026 — 12 others scored the same. The last comparable one was on 23 April 2026.
What the source measured
NOAA reported: Severe Thunderstorm Watch issued May 13 at 1:52PM MDT until May 13 at 8:00PM MDT by NWS Pocatello ID
Nearby, since 13 March 2026
- May 29, 2026 · score 22 · 0.0 km
- May 14, 2026 · score 22 · 0.0 km
- March 18, 2026 · score 22 · 0.0 km
How we know
Confirmed by 3 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.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 22 / 100 |
| Our confidence | 71% |
| Coordinates | 44.2000, -114.4000 |
| Nearest City | Boise (158 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-13T19:52:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.49a3f34b252c456fe090a9e8c1ad2d6a09fc6858.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Bannock, ID; Bear Lake, ID; Bingham, ID; Blaine, ID; Bonneville, ID; Butte, ID; Caribou, ID; Cassia, ID; Clark, ID; Franklin, ID; Fremont, ID; Jefferson, ID; Lincoln, ID; Madison, ID; Minidoka, ID; Oneida, ID; Power, ID; Teton, ID |
| Headline | Severe Thunderstorm Watch issued May 13 at 1:52PM MDT until May 13 at 8:00PM MDT by NWS Pocatello ID |
| Expires | 2026-05-13T20:00:00-06:00 |
| SenderName | NWS Pocatello ID |
| HasExactCoords | false |
| Iem TypeSummary | G |
| Iem Magnitude | 62 |
| Iem Unit | MPH |
| Iem City | 1 NNE Challis |
| Iem County | Custer |
| Iem State | ID |
| Iem Wfo | PIH |
| Iem Remark | ASOS station KLLJ Challis Airport. |
| MergedSources | [{"id":"iem_G_44.520_-114.220_1778704680000","source":"iem","severity":"low","severityValue":25,"timestamp":1778704680000,"latitude":44.52,"longitude":-114.22},{"id":"iem_G_44.520_-114.220_1778706180000","source":"iem","severity":"low","severityValue":25,"timestamp":1778706180000,"latitude":44.52,"longitude":-114.22}] |
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 10 February 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.
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 188 scientific monitoring sources.