Temperatures are expected to plunge into the mid-20s early Wednesday morning across much of northern Alabama, with freezing temperatures forecast for the central part of the state.
Forecasters at the National Weather Service say arctic air is in place over much of the nation, and temperatures are expected to be well below average over the next week.
Low temperatures are expected to be around 23 degrees in Huntsville and around 27 degrees in the Birmingham area early Wednesday. In the Montgomery area, the low is expected to be around 31 degrees.
Copyright 2013 The Associated Press.