Jeff Huffman

The National Weather Service in Jacksonville has issued a Winter Weather Advisory for a wintry mix of precipitation in effect from 6 p.m. Wednesday evening to 9 a.m. Thursday for Baker, Nassau, Duval and Union counties.

Schools in Baker, Bradford, Columbia, Nassau and Union counties will be closed Thursday.

A Winter Storm Warning is in effect until 6 a.m. Thursday for the Suwannee Valley Region.

Rain will mix with sleet and possibly freezing rain tonight into Thursday morning in Jacksonville.

Winter storms, the Dozier School for Boys, and Tim Tebow are in the headlines today.

In Louisiana:

-- "Jindal declares state of emergency, urges caution ahead of winter storm." (The Times-Picayune)

In Mississippi:

"Storm warning: Emergency plans put in place." (Clarion-Ledger)

In Alabama:

Medical marijuana, snow, and Gov. Rick Scott are in the headlines today.

The Central Florida Water Initiative, Toney Sleiman, and a freeze watch are in the headlines today.

The polar vortex, Marissa Alexander, and Gov. Rick Scott are in the headlines today.

Mission House, Inc. / Facebook

Organizations that help the homeless are ramping up their services as dangerously cold arctic air moves into the First Coast.

Jeff Huffman

The coldest air mass since 2010, maybe 2003, has arrived in The Sunshine State.

Black Hog Farm / Facebook

With record cold temperatures expected for the First Coast tonight, farmers are bringing in their livestock and covering what plants they can.

Chilly temperatures, shootings, and Congress are in the headlines today.

NASA caught our eye earlier today when the space agency tweeted a composite image of the huge winter storm that has covered parts of the Midwest and Eastern U.S. with a deep blanket of snow.

The photos that make up the image were taken Thursday, NASA says, during several passes of its Aqua satellite. The craft used its Moderate Resolution Imaging Spectroradiometer — MODIS — "to capture this true-color image of a massive winter storm moving up the eastern seaboard," the agency says.

National Weather Service / National Oceanic Atmospheric Association

Severe winter weather in the central and Northeastern U.S. is causing problems for passengers at Jacksonville International Airport.

Updated 11:30 p.m. ET

The Associated Press reports: "The National Weather Service said 21 inches of snow had fallen in Boxford, just north of Boston, by Thursday night, while other parts of the state had 17 or 18 inches. It said parts of upstate New York had 18 inches."

The New York Times reports:

Jeff Huffman

Some residents of Flagler County are picking up pieces of their homes today, after Saturday's soggy weather turned violent.  An EF1 tornado hit Palm Coast Saturday around 7:00pm with winds up to 105 mph.  Seven homes were completely destroyed, and officials said 164 were damaged by the storm.

Jeff Huffman

Cold air continues to pour in to much of Florida in the wake of last night’s front, and temperatures are likely to drop to the lowest values this season (so far) by Thanksgiving morning.  The National Weather Service has issued a Freeze Warning for all inland counties, along with the inland areas of a few coastal counties including Nassau and Duval.  Freezing temperatures are expected in the areas shaded on the map in blue, where lows of 30 to 32 will be possible and subfreezing conditions will last approximately two hours.