Calamity
MediumSevere WeatherCalamity Score: 28

Severe Weather near Helena

JeffersonUnited StatesSPC

Reported by SPC today.

It is the 8th strongest of the 14 detections recorded within 20 km of this point since 24 April 2026. The last comparable one was on 16 July 2026.

What the source measured

SPC reported: Wind 60 kt near 2 SE Wickes, Jefferson, MT. Mesonet station MTBOU Boulder Hill (MT DOT). (TFX)

An estimated 32,091 people live within 50 km of this point.

Nearby, since 24 April 2026

How we know

Confirmed by 2 independent sources, including SPC.

Our own score for this event is 28 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 v4. Rows carrying other versions were judged by different rules and are not directly comparable.

Event Data

TypeSevere Weather
SeverityMedium
Calamity Score (ours)28 / 100
Our confidence90%
Coordinates46.3200, -112.0700
Nearest CityHelena (30 km)
Population Exposed32.1K within 50 km
Impact Tiersignificant
Timestamp2026-09-02T20:45:00.000Z
Sourcehttps://www.spc.noaa.gov/climo/reports/today.html

Score Breakdown

35
intensity
40
population
0
cascading
18
historical

Technical Details

ReportTypewind
Speed60
Location2 SE Wickes
CountyJefferson
StateMT
CommentsMesonet station MTBOU Boulder Hill (MT DOT). (TFX)
Iem TypeSummaryG
Iem Magnitude60
Iem UnitMPH
Iem City2 SE Wickes
Iem CountyJefferson
Iem StateMT
Iem WfoTFX
Iem RemarkMesonet station MTBOU Boulder Hill (MT DOT).
MergedSources[{"id":"iem_G_46.320_-112.070_1788381900000","source":"iem","severity":"low","severityValue":25,"timestamp":1788381900000,"latitude":46.32,"longitude":-112.07}]

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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Calamity.live data shows a weather event with CalamityScore 28/100, near Helena (United States), based on data from spc. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.