Calamity
MediumSevere WeatherCalamity Score: 39

Severe Weather near Idaho Falls

BonnevilleUnited StatesNOAA

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 21:30 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

An estimated 86,847 people live within 50 km of this point.

How we know

Confirmed by 11 independent sources, including NOAA.

Our own score for this event is 39 out of 100, at 90 % 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

TypeSevere Weather
SeverityMedium
Calamity Score (ours)39 / 100
Our confidence90%
Coordinates43.5313, -112.0069
Nearest CityIdaho Falls (7 km)
Population Exposed86.8K within 50 km
Impact Tiersignificant
Timestamp2026-05-13T21:01:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.166c50798517375f01fdebd46ec9556d

Score Breakdown

35
intensity
55
population
0
cascading
80
historical

Technical Details

EventSevere Thunderstorm Warning
UrgencyImmediate
CertaintyObserved
AreaDescSalt Lake, UT; Utah, UT; Utah, UT; Wasatch, UT; Box Elder, UT and 6 more areas
HeadlineSevere Thunderstorm Warning issued May 13 at 3:01PM MDT until May 13 at 3:30PM MDT by NWS Salt Lake City UT
Expires2026-05-13T15:30:00-06:00
SenderNameNWS Salt Lake City UT
HasExactCoordstrue
MergedCount9
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 TypeSummaryG
Iem Magnitude61
Iem UnitMPH
Iem City1 NW Camas
Iem CountyJefferson
Iem StateID
Iem WfoPIH
Iem RemarkMesonet 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.

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