More snow expected with another winter storm arriving this week - KXLH.com | Helena, Montana

More snow expected with another winter storm arriving this week

Posted: Feb 06, 2018 4:16 PM Updated:

Story Highlights

  • A Winter Storm Watch has been issued for Wednesday night-Friday
  • 8-12" of snow is expected to fall across central Montana
  • Frigid air will return with temperatures dropping below zero

Another storm

Montana is gearing up for another winter storm this week, and it's expected to create big problems for drivers.

The National Weather Service has issued a Winter Storm Watch for most of the state in anticipation of heavy snow that will fall on Thursday and Friday.

Eventually, the watch will be upgraded to a warning or advisory as the storm approaches the state.

Significant snow

The STORMTracker Weather Team says the storm will dump heavy snow across central Montana, beginning on Wednesday night.

Light snow is expected to develop first along the Hi-Line and become widespread overnight into Thursday.

At times, snowfall rates may climb to 1" per hour, resulting in limited visibility and difficult driving conditions.

Meteorologist Mike Rawlins warns that travel could become nearly impossible at times on some highways across central Montana on Thursday into Friday.

The heaviest snow is expected in a band stretching from Glacier National Park and the Hi-Line southeast toward the I-94 corridor. Within this area, snow totals of 8-12" are likely, with the mountains receiving 12-24" of snow.

Farther south and west, less snow is anticipated for Great Falls and Helena, with up to a half foot of new accumulation by week's end.

Frigid air returns

This storm will help bring frigid air back into the Treasure State to finish the work week.

Rawlins says temperatures will actually fall throughout the day on Thursday as north winds drive down colder air from Canada.

Friday will be quite cold with highs only reaching the single digits and teens above zero.

By Saturday morning, many cities and towns will drop below zero, with some places reaching down to near -20°.

Although winds aren't expected to be strong during this time, a 5-10 mph wind will result in wind chills dipping to near -35°, which could lead to frostbite and hypothermia within 30 minutes of exposure.

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