Right now
The most recent data we hold from NOAA arrived 28 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 21:05 UTC. It is kept here as a record.
No stronger detection stands among the 19 recorded within 20 km of this point since 2 April 2026 — 2 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 May 13 at 2:55PM MDT until May 13 at 3:00PM MDT by NWS Great Falls MT
An estimated 54,441 people live within 50 km of this point.
Nearby, since 2 April 2026
- July 28, 2026 · score 32 · 17.8 km
How we know
Confirmed by 9 independent sources, including NOAA.
Our own score for this event is 39 out of 100, at 89 % 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) | 39 / 100 |
| Our confidence | 89% |
| Coordinates | 43.1368, -112.7237 |
| Nearest City | Pocatello (37 km) |
| Population Exposed | 54.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-13T20:55:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.32635e5a19b84d3274f7854ac1879d56 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Beaverhead, MT; Madison, MT; Butte, ID; Clark, ID; Fremont, ID; Jefferson, ID; Bannock, ID; Bingham, ID; Blaine, ID; Bonneville, ID; Butte, ID; Caribou, ID; Cassia, ID; Jefferson, ID; Minidoka, ID; Oneida, ID; Power, ID and 2 more areas |
| Headline | Severe Thunderstorm Warning issued May 13 at 2:55PM MDT until May 13 at 3:00PM MDT by NWS Great Falls MT |
| Expires | 2026-05-13T15:05:00-06:00 |
| SenderName | NWS Great Falls MT |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.32635e5a19b84d3274f7854ac1879d5695da3d2c.001.1","noaa_urn:oid:2.49.0.1.840.0.7a458cbb2d421c4e990d03de3a574bd8c465ea63.001.1","noaa_urn:oid:2.49.0.1.840.0.f94f0b2ee76b61c8499ad694a7fffdf034b14832.001.1","noaa_urn:oid:2.49.0.1.840.0.1d187117532bc6d5d52363079d5f525eefd05414.001.1","noaa_urn:oid:2.49.0.1.840.0.222df51123b8d11f26ba9cafee2a5a02317550f9.001.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 61 |
| Iem Unit | MPH |
| Iem City | 4 NNW Sterling |
| Iem County | Bingham |
| Iem State | ID |
| Iem Wfo | PIH |
| Iem Remark | Mesonet station 2250 D5 Sterling ID-39. |
| MergedSources | [{"id":"iem_G_43.780_-112.760_1778703300000","source":"iem","severity":"low","severityValue":25,"timestamp":1778703300000,"latitude":43.78,"longitude":-112.76},{"id":"iem_G_43.500_-112.670_1778699100000","source":"iem","severity":"low","severityValue":25,"timestamp":1778699100000,"latitude":43.5,"longitude":-112.67},{"id":"iem_G_43.630_-113.060_1778703000000","source":"iem","severity":"low","severityValue":25,"timestamp":1778703000000,"latitude":43.63,"longitude":-113.06},{"id":"iem_G_43.550_-112.330_1778700000000","source":"iem","severity":"low","severityValue":25,"timestamp":1778700000000,"latitude":43.55,"longitude":-112.33},{"id":"iem_G_43.720_-112.530_1778699700000","source":"iem","severity":"low","severityValue":25,"timestamp":1778699700000,"latitude":43.72,"longitude":-112.53},{"id":"iem_G_43.720_-112.500_1778699700000","source":"iem","severity":"low","severityValue":25,"timestamp":1778699700000,"latitude":43.72,"longitude":-112.5},{"id":"iem_G_43.440_-112.810_1778699400000","source":"iem","severity":"low","severityValue":25,"timestamp":1778699400000,"latitude":43.44,"longitude":-112.81},{"id":"iem_G_43.080_-112.780_1778697000000","source":"iem","severity":"low","severityValue":25,"timestamp":1778697000000,"latitude":43.08,"longitude":-112.78}] |
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 39/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.