A lee-side chinook arch directed stronger mid-atmosphere winds from the front range, to downwind locations off the higher elevations of central Montana.
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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 GGW wrote it up.
A lee-side chinook arch directed stronger mid-atmosphere winds from the front range, to downwind locations off the higher elevations of central Montana.
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 Glasgow, MT wrote its last area forecast discussion before the first event at Mar 12, 2:37 AM MST, 5 hours 55 minutes earlier.
Area Forecast Discussion National Weather Service Glasgow MT 237 AM MST Sat Mar 12 2022 .DISCUSSION... A warm front will lift across the region today as west winds increase. High temperatures this afternoon will push into the upper 30s to around 50 degrees. The High Wind Warning was maintained for SW Phillips County. The High Wind Watch was dropped for the remaining locations. While windy conditions are forecast, high winds are no longer expected. That said, an isolated wind gust in excess of 50 mph is still possible for usual windy areas. A cold front on Sunday will deliver a chance for light rain and snow along with colder temperatures. High temperatures will range from the upper 20s along the immediate Canadian border to the lower 40s south of the Missouri River. Ensembles suggest upper ridging will become established once again across the western U.S. extending into the Northern High Plains for early next week. This will lead to drier weather conditions and warmer temperatures for Monday and Tuesday. Some flattening of the ridge is possible for the middle to second half of the week, but consensus blends are still supportive of milder temperatures remaining in place. && .AVIATION... VFR conditions are expected today. Look for west to northwest winds today increasing to 20 to 30 kts with gusts to 35 kts by late morning, continuing into the afternoon. Winds will relax to around 10 kts during the evening hours. && .GLASGOW WATCHES/WARNINGS/ADVISORIES... High Wind Warning from 6 AM this morning to 7 PM MST this evening for Southwest Phillips. && weather.gov/glasgow
The national radar mosaic for the moment the first event began.
1 high wind. Local standard time, as filed.
Intermittent wind speeds of at least 40 mph were common in the Little Rocky Mountains from the morning to the early afternoon hours. The peak wind gust of 63 mph was recorded at 8:32 AM at the Zortman BLM RAWS site (ALDM8).
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, March 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 2026-09-24. Each event’s entry at NCEI: 1008963.