When it hasn't been snowing, it's been very foggy in the valleys of southwest Montana so far this week. Dense fog has created dangerous driving conditions at times.

There are a few tricks for driving in foggy conditions, and Montanans aren't the best at remembering them sometimes. (The complaining on local driving/weather conditions groups will prove me right on that.) Anyway, this the is most important tip from Weather.gov:

Make your vehicle visible to others both ahead of you and behind you by using your low-beam headlights since this means your taillights will also be on. Use fog lights if you have them. Never use your high-beam lights.

Most counties in western Montana are also expecting a couple more inches of snow through Tuesday morning, with more over the passes. Travel may be difficult overnight due to the slushy roads becoming icy.

  • DENSE FOG ADVISORY IN EFFECT UNTIL 11 AM TUESDAY.
  • WHAT...Visibility one quarter mile or less in dense fog at times.
  • WHERE...Helena Valley and Gallatin Valley.
  • WHEN...Until 11 AM Tuesday.
  • IMPACTS...Low visibility could make driving conditions hazardous.
  • If driving, slow down, use your low-beam headlights, and leave plenty of distance ahead of you.
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  • WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM MONDAY AFTERNOON TO 11 AM TUESDAY.
  • WHAT...Snow expected. Total snow accumulations of 1 to 2 inches, except less than an inch from Deer Lodge southwards.
  • WHERE...Butte, Georgetown Lake, Highway 12 Garrison to Elliston, Homestake Pass, and MacDonald Pass.
  • WHEN...From 5 PM this afternoon to 11 AM Tuesday.
  • IMPACTS...Plan on slippery road conditions.

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