BISMARCK, North Dakota — Dangerously cold weather is descending on parts of North Dakota.
The National Weather Service says wind chills of about 30 degrees below zero are expected Friday night and Saturday morning in the northwest and north central parts of the state. Forecasters say weather that cold can lead to frostbite and hypothermia if people don't take precautions.
Wind chill is the combination of air temperature and wind. The forecast calls for actual temperatures overnight from the single digits in southern North Dakota to the teens below zero in the north.
High temperatures Saturday are expected to range from 5 below zero in the western Devils Lake Basin to 30 above in the southwest.