Winter storm to affect the region this weekend

Another storm system will affect the region this weekend as low pressure moves northeast out of the southwestern United States Friday, and into northwest Iowa by Saturday evening. Due to warmer air aloft, a mixture of freezing rain, sleet and snow will initially develop across the area Friday afternoon and evening. The precipitation will become a mixture of snow and freezing rain north of Interstate 90, and rain or freezing rain to the south of Interstate 90, Friday night and Saturday. During Saturday night, colder air will filter into this system and will gradually changed the mixed precipitation completely over to snow from west to east across the region. Snow and blowing snow is expected west of Interstate 29 on Sunday with light snow to the east. Significant icing will be possible with this system Friday night into Saturday, mainly along and north of Interstate 90. The heaviest snow with this system will occur Saturday night and Sunday. Total snow accumulations will range from 3 to 5 inches northwest of a Pickstown South Dakota to Marshall Minnesota line, with 1 to 4 inches to the southeast. 2 to 3 inches of snow is expected in the Sioux Falls areas, with 1 to 2 inches in the Sioux City area from this storm. 



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