573
WWUS85 KTFX 211020
SPSTFX

Special Weather Statement
National Weather Service Great Falls MT
320 AM MST Fri Nov 21 2025

MTZ319-321>325-328-211300-
Helena Valley-Meagher County Valleys-
Elkhorn and Boulder Mountains-Canyon Ferry Area-
Missouri Headwaters-Madison River Valley-
Beaverhead and Western Madison below 6000ft-
Including the cities of Helena, Martinsdale, Checkerboard,
Ringling, White Sulphur Springs, Montana City, Clancy, Boulder,
Corbin, Wickes, Elk Park Pass, Homestake Pass, Toston, Townsend,
Winston, Harrison, Three Forks, Willow Creek, Pony, Whitehall,
Cameron, Ennis, Jeffers, McAllister, Norris, Bannack, Dillon,
Glen, and Waterloo
320 AM MST Fri Nov 21 2025

...Reduced Visibilities...

Fog, locally dense in some areas, has developed across portions of
Central and Southwest Montana. While most areas will see
visibilities of between one to three miles where the fog has
developed there will be localized spots where visibilities fall to
as low as one quarter of a mile.

Travelers should be prepared for changing conditions. Slow down
and use low beam headlights if you encounter reductions in
visibility due to fog.

$$

MTZ301-302-211300-
East Glacier Park Region-Northern High Plains-
Including the cities of East Glacier Park, Kiowa, Babb,
Saint Mary, Marias Pass, Logan Pass, Browning, Heart Butte,
and Dupuyer
320 AM MST Fri Nov 21 2025

...Strong and Gusty Winds...

Southwest to west winds have become strong and gusty across the
East Glacier Park Region and Northern High Plains, generally along
and west of the US Hwy 89 corridor from Dupuyer north to the
Canadian Border. Travelers in these areas should be prepared for
strong cross winds of between 50 to 70 mph, especially in the
Badger Creek and Two Medicine River Valleys west of US Hwy 89.

Know your vehicles limits!

$$

Moldan