The National Weather Service in Birmingham has issued a Hard Freeze Warning in advance of an approaching cold front expected to bring wind chills in the single digits to Tuscaloosa. Most Alabama counties are under the Hard Freeze Warning, which is in effect from 9 p.m. Wednesday to 9 a.m. Thursday. Counties under the warning are shaded purple.

NWS Birmingham

The full text of the warning is as follows:

...HARD FREEZE WARNING IN EFFECT FROM 9 PM WEDNESDAY TO 9 AM CST THURSDAY...

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A HARD FREEZE WARNING...WHICH IS IN EFFECT FROM 9 PM WEDNESDAY TO 9 AM CST THURSDAY.

* TEMPERATURES...IN THE 8 TO 14 DEGREE RANGE ALONG AND NORTH OF I-20 AND IN THE 14 TO 18 DEGREE RANGE SOUTH OF I-20.

* WIND CHILLS...IN THE 5 TO 15 DEGREE RANGE WEDNESDAY EVENING FALLING TO NEAR ZERO AFTER MIDNIGHT.

* IMPACTS...PROLONGED EXPOSURE TO THESE CONDITIONS CAN LEAD TO HYPOTHERMIA AND FROSTBITE.

PRECAUTIONARY/PREPAREDNESS ACTIONS..

A HARD FREEZE WARNING MEANS TEMPERATURES ARE FORECAST TO DROP TO 15 DEGREES OR LOWER.

THE COMBINATION OF COLD TEMPERATURES AND WIND CAN LEAD TO

HYPOTHERMIA AND FROSTBITE. WEAR LAYERED CLOTHING AND COVER EXPOSED SKIN. COVER YOUR HEAD WITH A HAT.

TO PREVENT FREEZING AND POSSIBLE BURSTING OF OUTDOOR WATER

PIPES...PIPES SHOULD BE WRAPPED...DRAINED...OR ALLOWED TO DRIP SLOWLY. THOSE THAT HAVE IN-GROUND SPRINKLER SYSTEMS SHOULD DRAIN THEIR SYSTEMS...OR COVER ANY ABOVE-GROUND PIPES TO PROTECT THEM FROM FREEZING.

OUTDOOR PETS SHOULD BE PROVIDED A WARM PLACE TO SHELTER.

For a more in-depth look at the approaching cold temps, watch ABC 33/40 Chief Meteorologist James Spann's latest Weather Xtreme video below.