Calamity
HighSevere WeatherCalamity Score: 45

Severe Weather in United States

ChouteauUnited StatesSPC

Reported by SPC today.

No stronger detection stands among the 25 recorded within 20 km of this point since 3 April 2026 — 9 others scored the same. Another comparable one was recorded here earlier the same day.

What the source measured

SPC reported: Wind 80 kt near Highwood Bench, Chouteau, MT. (TFX)

An estimated 59,638 people live within 50 km of this point.

Nearby, since 3 April 2026

How we know

Confirmed by 2 independent sources, including SPC.

Our own score for this event is 45 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
SeverityHigh
Calamity Score (ours)45 / 100
Our confidence90%
Coordinates47.6900, -110.9000
Nearest CityGreat Falls (37 km)
Population Exposed59.6K within 50 km
Impact Tiersevere
Timestamp2026-09-03T02:51:58.632Z
Sourcehttps://www.spc.noaa.gov/climo/reports/today.html

Score Breakdown

50
intensity
55
population
0
cascading
80
historical

Technical Details

ReportTypewind
Speed80
LocationHighwood Bench
CountyChouteau
StateMT
Comments(TFX)
Iem TypeSummaryG
Iem Magnitude80
Iem UnitMPH
Iem CityHighwood Bench
Iem CountyChouteau
Iem StateMT
Iem WfoTFX
MergedSources[{"id":"iem_G_47.690_-110.900_1788386700000","source":"iem","severity":"low","severityValue":25,"timestamp":1788386700000,"latitude":47.69,"longitude":-110.9}]

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 45/100 (United States), based on data from spc. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.