UPDATE:

Heads up West Alabama, sleet is falling over portions of Pickens, Greene, Hale, Sumter, and Tuscaloosa counties.

The National Weather Service Birmingham has much of Central Alabama under Freezing Fog Advisory in effect until 9 am.

FREEZING FOG ADVISORY IN EFFECT UNTIL 9 AM CST THIS MORNING...

* WHAT...Visibility below one half mile at times due to freezing
  fog and low clouds.

* WHERE...Northwest two thirds of Central Alabama, generally
  along and northwest of Interstate 85.

* WHEN...Until 9 AM CST this morning.

* IMPACTS...Hazardous driving conditions due to low visibility
  and potential frost on bridges.
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Patchy Freezing Fog is Possible for Portions of Alabama

You can expect a frigid night across most of Alabama. Most places will see a freeze tonight. The lows tomorrow early morning will range from 25 to 33.

The National Weather Service Birmingham advises that “patchy freezing fog is possible overnight, with the greatest potential between I-20 and I-85. Please travel with extra caution during the morning commute as visibilities could be reduced & icy patches may develop.”

What is freezing fog? It is when fog is composed of supercooled water drops. The drops freeze just after they wet a surface. I would suggest using extra caution when traveling early in the morning.

I will continue to monitor this weather scenario, and Captain Ray will have road and traffic conditions for you.

(Source) For more from the National Weather Service, click here to follow their Facebook page.

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