SIOUX FALLS, S.D. (AP) — Stormy weather is greeting commuters in much of South Dakota and southeastern North Dakota. Many schools are delaying classes or closing for the day.

The National Weather Service has posted numerous watches, warnings and advisories for much of central and eastern South Dakota, and southeastern North Dakota. Mid-central and northeastern South Dakota is under a blizzard warning.

Forecasters say 5 or more inches of snow could fall in the hardest-hit areas. Winds gusting to 50 mph will blow snow around and reduce visibilities.

South Dakota's Transportation Department is advising motorists that travel likely will be difficult throughout much of the region. Transportation Secretary Darin Bergquist calls it "a dangerous spring storm."

Arctic air will drop overnight lows below zero, and some areas could see wind chills in the minus 30s.

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