Northwesterly flow aloft brought a slight reduction in winds for most locations. However, 50 kt H700 winds combined with tight surface pressure gradients maintained periodic strong gusts over the Rocky Mountain Front.
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.
Northwesterly flow aloft brought a slight reduction in winds for most locations. However, 50 kt H700 winds combined with tight surface pressure gradients maintained periodic strong gusts over the Rocky Mountain Front.
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 Jan 16, 4:25 PM MST, 2 hours 1 minute earlier.
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</html>9 high wind. Local standard time, as filed.
MDT 2 SE Browning station measured a 52 kt (60 mph) non-thunderstorm wind gust.
Mesonet Dellwo station measured a 58 kt (67 mph) non-thunderstorm wind gust.
KCTB measured a 52 kt (60 mph) non-thunderstorm wind gust.
MDT Sweetgrass station measured a 53 kt (61 mph) non-thunderstorm wind gust.
KCTB measured a 50 kt (58 mph) non-thunderstorm wind gust.
Mesonet station 5 N Ledger measured a 55 kt (63 mph) non-thunderstorm wind gust.
Mesonet station 13 N Chester measured a 51 kt (59 mph) non-thunderstorm wind gust.
MDT Two Medicine Bridge measured a 59 kt (68 mph) non-thunderstorm wind gust.
Mesonet station near Conrad (6 NW Ledger) measured a 55 kt (63 mph) non-thunderstorm wind gust.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Montana in 2022Every state in 2022This day in weather historyWarnings in Montana, January 2022
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 2026-09-30. Each event’s entry at NCEI: 1002921, 1002965, 1002911, 1002966, 1002915, 1002964, 1002923, 1002986, 1002987.