Right now
The most recent data we hold from NOAA arrived 31 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 21:30 UTC. It is kept here as a record.
It is the strongest of the 75 detections recorded within 20 km of this point since 9 March 2026. Another comparable one was recorded here earlier the same day. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 13 at 3:01PM MDT until May 13 at 3:30PM MDT by NWS Salt Lake City UT
Urban PEI: 86,847 within a heuristic 50 km radius; not unique people.
How we know
11 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 39 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 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 |
| Legacy data-support index | 0.90/1 |
| Coordinates | 43.5313, -112.0069 |
| Nearest City | Idaho Falls (7 km) |
| Urban exposure index (PEI) | 86.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-13T21:01:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.166c50798517375f01fdebd46ec9556d |
Physical priority index · v1. 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: 2026-05-13T21:01:00.000Z.
First archived: 2026-05-13T21:02:55.591Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Salt Lake, UT; Utah, UT; Utah, UT; Wasatch, UT; Box Elder, UT and 6 more areas |
| Headline | Severe Thunderstorm Warning issued May 13 at 3:01PM MDT until May 13 at 3:30PM MDT by NWS Salt Lake City UT |
| Expires | 2026-05-13T15:30:00-06:00 |
| SenderName | NWS Salt Lake City UT |
| HasExactCoords | true |
| MergedCount | 9 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.166c50798517375f01fdebd46ec9556d4d31c7d7.001.1","noaa_urn:oid:2.49.0.1.840.0.a7686c3538365a279d49ed20327d6d8bce9550b1.001.1","noaa_urn:oid:2.49.0.1.840.0.1d187117532bc6d5d52363079d5f525eefd05414.001.1","noaa_urn:oid:2.49.0.1.840.0.222df51123b8d11f26ba9cafee2a5a02317550f9.001.1","noaa_urn:oid:2.49.0.1.840.0.f94f0b2ee76b61c8499ad694a7fffdf034b14832.001.1","noaa_urn:oid:2.49.0.1.840.0.4242cca2e2e7edcd901fe496a85a612d69dbc132.001.1","noaa_urn:oid:2.49.0.1.840.0.d5320ccd43234b690def9b02b937d698e7aa634c.001.1","noaa_urn:oid:2.49.0.1.840.0.94f1e87672042ac1415ab52bc2cf88d823126406.001.1","noaa_urn:oid:2.49.0.1.840.0.7b95f41cdc49cf2dfdc53a50e722f7827022f1bf.001.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 61 |
| Iem Unit | MPH |
| Iem City | 1 NW Camas |
| Iem County | Jefferson |
| Iem State | ID |
| Iem Wfo | PIH |
| Iem Remark | Mesonet station ITDE3 D6 Camas I-15. |
| MergedSources | [{"id":"iem_G_44.010_-112.240_1778700300000","source":"iem","severity":"low","severityValue":25,"timestamp":1778700300000,"latitude":44.01,"longitude":-112.24},{"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_43.710_-111.340_1778699700000","source":"iem","severity":"low","severityValue":25,"timestamp":1778699700000,"latitude":43.71,"longitude":-111.34},{"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_43.710_-111.340_1778702400000","source":"iem","severity":"low","severityValue":25,"timestamp":1778702400000,"latitude":43.71,"longitude":-111.34},{"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_44.010_-112.230_1778700600000","source":"iem","severity":"low","severityValue":25,"timestamp":1778700600000,"latitude":44.01,"longitude":-112.23}] |
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.
Review the area, threshold and delivery channel in your account.
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