This winter has featured several Southern snow events already, and another one is ahead. Thankfully, this one will be more focused in the Southern Plains and through the Tennessee Valley, whereas the previous event affected all of the Southeast. This snow event will be nowhere close to the one where over half a foot of snow fell across portions of the Deep South.




The culprit for this snow is the progression of yet another Arctic front. Snow will follow this front, so cold air will be in place, allowing for snow to fall. The inhibitor of this snow, however, will be the moisture. Moisture will be limited across the Southeast, so that’s why we think this part of the country won’t really deal with any snow. Instead of moist air flowing in from the Gulf, it will be dry, Arctic air moving in from the Canada. A thin band of snow will begin late-Monday night and will break out across northeastern Texas, southeastern Oklahoma, and into Arkansas and the Tennessee Valley. Therefore, cities like Dallas may have some travel issues during the Tuesday morning commute after a light snow falls during the early-morning hours.

Low Precipitable Water Indicates Dry Air

As we get into the daylight hours of Tuesday, snow will stretch from central Texas through northern Louisiana, extreme-southern Missouri, northern Mississippi and Alabama, and into much of Tennessee and Kentucky during the morning. There is the concern for over a glaze of freezing rain just north of San Antonio, TX, so this type of precipitation may cover everything in ice. This line of snow will begin to dwindle as the day progresses on Tuesday as dry air begins to entrain in. A light snow is still possible from southeastern Texas, so even Houston may deal with a brief period of wintry precipitation, through central Louisiana and Mississippi, northern Alabama, northwestern Georgia, and into the Appalachians. The Texas Gulf coast may also experience a light, brief period of freezing rain as low-level cold moves in and under the warmer air. This snow will be light and brief, but temperatures will be freezing so snow will likely accumulate. Thankfully, we’re only expecting most areas to pick up between a coating and an inch of snowfall. During the overnight hours, the line of snow will move south and east while weakening, so a light snow is expected across the remainder of Louisiana, Mississippi, Alabama, Georgia, and even the western Florida Panhandle. All of these areas may experience up to an inch of snow for most areas. This may lead to some issues on the roads for your Wednesday morning commute, so take it slow.




By Wednesday, a few lingering snow showers are possible in Georgia while the Carolinas experience a light snow. We don’t think there will be much accumulating snow in South Carolina, but as you drive up I-95 in North Carolina, you may experience up to five inches of snowfall.

Here’s our updated snowfall and freezing rain forecast:

Author

Jackson is COO and Head of Content and Strategy of WeatherOptics. He also designed his own website and created the local company, Jackson's Weather. He has been forecasting the weather for southwestern Connecticut since March of 2015. He is currently a senior in high school and will major in Meteorology and Broadcast Journalism at the University of Miami in Fall 2018.

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