* WHAT...Wind chills of 5 to 15 degrees and temperatures of 10 to 20 degrees.

* WHERE...All of Central Alabama.

* WHEN...From 7 PM this evening to 9 AM CST Wednesday.

* IMPACTS...Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. An extended period of subfreezing temperatures could cause pipes to burst.