Dense fog advisory in effect until 11 am MST Tuesday...
Tonight
Cloudy with scattered snow showers and a slight chance of freezing rain. Areas of freezing fog. Lows 10 to 15. East winds 5 to 10 mph. Chance of precipitation 50 percent.
Tuesday
Areas of freezing fog in the morning. Scattered snow showers in the morning...then numerous snow showers in the afternoon. Snow accumulation around 1 inch. Highs 15 to 20. North winds up to 10 mph. Chance of precipitation 70 percent.
Snow likely in the evening...then snow after midnight. Snow accumulation around 2 inches. Lows around 5 above. Northwest winds 5 to 15 mph. Chance of snow 90 percent.
Wednesday
Snow likely. Accumulations possible. Highs 5 to 10. Northwest winds 10 to 15 mph. Chance of snow 70 percent.
Mostly cloudy in the evening...then becoming partly cloudy. Lows around 10 below. Northwest winds 5 to 15 mph...shifting to the southwest 5 to 10 mph after midnight.
Thursday through Friday Night
Partly cloudy. Highs 5 to 15. Lows zero to 10 below.
Saturday through Monday
Partly cloudy. Highs 20 to 30. Lows 5 below to 10 above zero.
... Dense fog advisory in effect until 11 am MST Tuesday...
The National Weather Service in Great Falls has issued a dense fog advisory... which is in effect until 11 am MST Tuesday.
* Widespread dense freezing fog will continue to develop through tonight and will remain in the area through tomorrow morning.
* Visibility will drop below one quarter mile at locations for extended periods of time before dissipating late tomorrow morning.
* Some locations will also see icy roads due to freezing rain and freezing fog forming black ice on Road surfaces.
* Locations affected include: Browning... Marias Pass... Logan Pass... Cut Bank... Havre... Great Falls... Kings Hill Pass... Big Sandy... Fort Benton... Helena... MacDonald Pass... Lincoln... Rogers Pass... Shelby... Chester... Conrad... Chinook... Choteau... Fairfield... Stanford... Lewistown... Lewistown Divide... White Sulphur Springs.
Precautionary/preparedness actions...
A dense fog advisory means visibilities will frequently be reduced to less than one quarter mile. If driving... slow down... use your headlights... leave plenty of distance ahead of you... and extra time to reach your destination.