The first significant snowfall of the season is approaching parts of six states in the Rockies and Plains, while Alaska faces a separate round of heavy snow and powerful winds. By Monday, October 26, travelers in both regions could encounter hazardous conditions, even where snowfall totals remain relatively modest.

The surprise is where the snow could accumulate. According to AccuWeather’s October 25 forecast , colder air could bring snow beyond the highest mountain elevations, including parts of South Dakota, North Dakota, Nebraska, Wyoming, Montana, and Colorado.

Next: New Snow Map Shows US States Facing First Major Snow of Fall

Where the First Snow Could Cause Problems Monday

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The Black Hills of South Dakota are among the areas most likely to experience accumulating snow, with Rapid City potentially seeing its first slushy conditions of the season.

AccuWeather Senior Meteorologist Bob Smerbeck explained: “There is the potential for several inches of snow to fall over the Black…