As the region prepares for snow Tuesday morning, Feb. 23, an updated forecast predicts that the heaviest snowfall will occur in a narrow band that includes Mayville and Ada, Minn., where 4 to 6 inches of snow is expected.

Snow accumulations likely will taper off to the north and south of that band, according to the National Weather Service. Three to 4 inches is forecast in both Grand Forks and Fargo, 1 to 2 inches are forecast in Grafton and Thief River Falls, and Cavalier is expected to receive less than an inch of snow.

The location of the band of heaviest snowfall is not completely certain, and it could still shift north or south, although the consensus is that it will be somewhere between Grand Forks and Fargo.

Snowfall is expected to begin along the Red River Valley around mid-morning and will move eastward throughout the day, falling at a rate of 1 inch per hour at times. Near the band of heaviest snowfall, visibility will likely be impacted, and road conditions will likely be slick throughout the region. At this time, it doesn't appear that wind speeds will be fast enough to create issues of blowing snow, NWS reports, although heavy snowfall could create near-whiteout conditions in the band.

The band will move out of the area by midnight, according to NWS. Drivers will likely see the heaviest travel impacts during the evening commute, and are urged to slow down and take caution.

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After the snow ends, the rest of the week will be partly to mostly sunny, according to NWS, with highs forecast in the mid-20s to low 40s through the end of the week.

Road conditions: