A combination of single-digit temperatures and stiff winds will push wind chill temperatures so low that frostbite can pose a threat, according to the National Weather Service.
Overnight wind chills will drop to minus 10 to minus 15 degrees as the still-air temperature hits three above or less, forecaster Gene Hatch said.
That means that exposed skin can show the effects of frostbite in 30 minutes, he said.
Overnight winds will be steady at around 15 miles an hour, with gusts of around 25 miles an hour.
Relief from brisk winds Wednesday night will mean that the overnight low into Thursday will be even lower, wind chills won’t fall as much, Hatch said.
The overnight low Wednesday will be around zero, but wind chill won’t be as serious a factor to consider, he said.