DETROIT (AP) An arctic blast has eased its grip on Michigan with temperatures rising as much as 31 degrees from the double-digit sub-zero levels of recent days.
The National Weather Service says Wednesday's temperatures shot to 19 degrees at Lambertville, Muskegon and South Haven and 18 at Detroit.
Three Rivers in southwestern Michigan saw temperatures rise from minus 15 early in the day to 16 above at 3 p.m. EST.
Copper Harbor in the Upper Peninsula is the state's hot spot Wednesday at 24 degrees.
Authorities are blaming the heavy snow and subsequent deep freeze for at least eight deaths, five involving snow shoveling and three in crashes.
Hundreds of schools remain closed around southern Michigan, and some say they'll stay shut Thursday as well.