Multiple periods of dense fog occurred across portions of northeast Montana over a 3-day period.
Every event with a place to put it; 9 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
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.
Multiple periods of dense fog occurred across portions of northeast Montana over a 3-day period.
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 Feb 16, 8:26 PM MST, 31 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
9 dense fog. Local standard time, as filed.
At the Glasgow airport ASOS site, dense fog began late in the evening on the 16th and lasted through the morning on the 17th.
At the Scobey airport mesonet site, visibility dropped to 1/4 mile for a few hours on the night of the 16th. Event times are estimated.
At the Plentywood airport mesonet site, some patchy fog was present through most of the day on the 16th, but dropped into a steady dense fog once during the late night hours, then again on the 17th.
A steady, dense fog set up at the Glendive airport AWOS site through the overnight and early morning hours on the 17th.
At the Poplar airport mesonet site dense fog was reported during the early morning hours.
A steady dense fog set in at the Glasgow airport ASOS site throughout the morning hours on the 18th.
Steady dense fog was recorded at the Plentywood mesonet site through most of the day.
At the Poplar mesonet site, dense fog was recorded for a few hours in the morning.
This is a continuation of the previous dense fog advisory at the Plentywood mesonet site which continued off and on until after 7:15 pm MST.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Montana in 2016Every state in 2016This day in weather historyWarnings in Montana, February 2016
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: 621067, 621062, 621063, 621066, 621065, 621064, 621068, 621069, 621079.