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 13 May 2026 at 21:50 UTC. It is kept here as a record.
It is the 3rd strongest of the 7 detections recorded within 20 km of this point since 13 May 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 13 at 3:41PM MDT until May 13 at 3:45PM MDT by NWS Pocatello ID
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 70 % 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 | 70% |
| Coordinates | 41.8935, -112.4796 |
| Nearest City | Logan (56 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-13T21:41:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.eabb8649d664f5ed596af229e498490f |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Cassia, ID; Oneida, ID; Box Elder, UT; Bannock, ID; Bear Lake, ID; Bingham, ID; Bonneville, ID; Caribou, ID; Franklin, ID; Fremont, ID; Jefferson, ID; Madison, ID; Oneida, ID; Power, ID; Teton, ID and 2 more areas |
| Headline | Severe Thunderstorm Warning issued May 13 at 3:41PM MDT until May 13 at 3:45PM MDT by NWS Pocatello ID |
| Expires | 2026-05-13T15:50:00-06:00 |
| SenderName | NWS Pocatello ID |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.eabb8649d664f5ed596af229e498490fc51c4d77.001.1","noaa_urn:oid:2.49.0.1.840.0.b0e040aa7b89d59e52cf04fccc75dc71d5c863a3.001.1","noaa_urn:oid:2.49.0.1.840.0.ff7f12635de4437c2460ac3fd26734b0988a3a4f.001.1","noaa_urn:oid:2.49.0.1.840.0.d01fd8c641960f8de0c1de2b4ef3308f386b3077.001.1","noaa_urn:oid:2.49.0.1.840.0.7ecb4027ebb6c26cac9ded7b7e960bba0c8ac935.001.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 58 |
| Iem Unit | MPH |
| Iem City | 9 N Lakeside |
| Iem County | Box Elder |
| Iem State | UT |
| Iem Wfo | SLC |
| Iem Remark | Mesonet station GNI Gunnison Island. |
| MergedSources | [{"id":"iem_G_42.140_-112.980_1778700600000","source":"iem","severity":"low","severityValue":25,"timestamp":1778700600000,"latitude":42.14,"longitude":-112.98},{"id":"iem_G_41.330_-112.850_1778704500000","source":"iem","severity":"low","severityValue":25,"timestamp":1778704500000,"latitude":41.33,"longitude":-112.85}] |
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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