Strong mid-level winds, an upper trough, and a strengthening surface gradient combined to produce high winds along the Northern Rocky Mountain Front. Wind gusts in excess of 60 mph were reported.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS TFX wrote it up.
Strong mid-level winds, an upper trough, and a strengthening surface gradient combined to produce high winds along the Northern Rocky Mountain Front. Wind gusts in excess of 60 mph were reported.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Great Falls, MT wrote its last area forecast discussion before the first event at Nov 30, 4:28 AM MST, 5 hours 1 minute earlier.
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</html>2 high wind. Local standard time, as filed.
A wind gust to 61 mph was reported at East Glacier Park 1ENE (the Two Medicine DOT site).
A wind gust to 78 mph was reported at East Glacier Park 8SE (the Deep Creel RAWS site - elevation 5340 feet).
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Montana in 2010Every state in 2010This day in weather historyWarnings in Montana, November 2010
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 264808, 264810.