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.
4 other detections within 20 km in the last 24 hours, the nearest 7 km from here.
This alert expired on 18 September 2026 at 04:00 UTC. It is kept here as a record.
It is the 5th strongest of the 21 detections recorded within 20 km of this point since 2 April 2026. The last comparable one was on 11 September 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued September 17 at 9:08PM MDT until September 17 at 10:00PM MDT by NWS Pocatello ID
Urban PEI: 113,625 within a heuristic 50 km radius; not unique people.
Nearby, since 2 April 2026
- September 18, 2026 · score 49 · 7.1 km
- September 18, 2026 · score 49 · 12.7 km
How we know
3 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 37 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
Computed under scoring rules v5. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 37 / 100 |
| Legacy data-support index | 0.91/1 |
| Coordinates | 43.2860, -112.3740 |
| Nearest City | Idaho Falls (35 km) |
| Urban exposure index (PEI) | 113.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-18T03:08:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.6550f37e40423f5eaa45a49e9e5960251c745e04.001.1 |
Physical priority index · v5. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-09-18T03:08:00.000Z.
First archived: 2026-09-18T03:14:19.481Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
2026-09-18T03:30:25.427Z · data_change
Index 37 → 37; severity medium → medium; version 5 → 5.
2026-09-18T03:25:06.323Z · data_change
Index 37 → 37; severity medium → medium; version 5 → 5.
2026-09-18T03:19:45.186Z · data_change
Index 37 → 37; severity medium → medium; version 5 → 5.
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Bingham, ID; Bonneville, ID |
| Headline | Severe Thunderstorm Warning issued September 17 at 9:08PM MDT until September 17 at 10:00PM MDT by NWS Pocatello ID |
| Expires | 2026-09-17T22:00:00-06:00 |
| SenderName | NWS Pocatello ID |
| HasExactCoords | true |
| Spc ReportType | wind |
| Spc Speed | 61 |
| Spc Location | 9 SSW Mud Lake |
| Spc County | Jefferson |
| Spc State | ID |
| Spc Comments | INL Rover site. (PIH) |
| Iem TypeSummary | G |
| Iem Magnitude | 47 |
| Iem Unit | MPH |
| Iem City | Atomic City |
| Iem County | Bingham |
| Iem State | ID |
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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