Calamity
MediumSevere WeatherCalamity Score: 22

Severe Weather in United States

LakeUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 27 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 14 March 2026 at 22:45 UTC. It is kept here as a record.

It is the 2nd strongest of the 7 detections recorded within 20 km of this point since 14 March 2026.

What the source measured

NOAA reported: Snow Squall Warning issued March 14 at 3:56PM MDT until March 14 at 4:45PM MDT by NWS Missoula MT

Nearby, since 14 March 2026

How we know

Confirmed by 5 independent sources, including NOAA.

Our own score for this event is 22 out of 100, at 68 % 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)22 / 100
Our confidence68%
Coordinates47.3640, -114.1760
Nearest CityMissoula (57 km)
Impact Tierminor
Timestamp2026-03-14T21:56:00.000Z
Sourcehttps://api.weather.gov/alerts/urn-oid-2_49_0_1_840_0_736565a382973dcf8b5c21cffe7fa64f0f1fc2ff_001_1

Score Breakdown

35
intensity
0
population
0
cascading
80
historical

Technical Details

EventSnow Squall Warning
UrgencyExpected
CertaintyLikely
AreaDescLake, MT; Sanders, MT
HeadlineSnow Squall Warning issued March 14 at 3:56PM MDT until March 14 at 4:45PM MDT by NWS Missoula MT
Expires2026-03-14T16:45:00-06:00
SenderNameNWS Missoula MT
HasExactCoordstrue
Iem TypeSummaryS
Iem Magnitude6.8
Iem UnitInch
Iem CityRonan
Iem CountyLake
Iem StateMT
Iem WfoMSO
Iem RemarkCocorahs station MT-LK-13 Ronan. The period of the Snow event was 72 hours.
MergedSources[{"id":"iem_S_47.690_-114.160_1773513240000","source":"iem","severity":"low","severityValue":25,"timestamp":1773513240000,"latitude":47.69,"longitude":-114.16},{"id":"iem_S_46.760_-114.290_1773505200000","source":"iem","severity":"low","severityValue":25,"timestamp":1773505200000,"latitude":46.76,"longitude":-114.29},{"id":"iem_S_48.010_-114.240_1773513420000","source":"iem","severity":"low","severityValue":25,"timestamp":1773513420000,"latitude":48.01,"longitude":-114.24},{"id":"iem_S_47.530_-114.100_1773507240000","source":"iem","severity":"low","severityValue":25,"timestamp":1773507240000,"latitude":47.53,"longitude":-114.1}]

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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