Polar Vortex Brings Extreme Cold to Southern States: What to Expect (2026)

A sharp cold snap is poised to sweep across six Southern states, bringing temperatures well below normal this weekend and into early next week. Forecasters from the National Weather Service (NWS) warn that a disrupted polar vortex is allowing frigid Arctic air to spill southward, unleashing a significant chill for much of the U.S. South.

Experts describe a sprawling mass of extremely cold air over northwestern Canada, with temperatures 20 to 30 degrees Fahrenheit below zero. This plug of bitter air is sliding southeast, effectively delivering what Bernie Rayno, AccuWeather’s chief on-air meteorologist, calls the “mother lode” of cold air—a term he admits he reserves for such notable events.

Starting this weekend and lasting into the next, the cold influx is expected to hit Louisiana, Mississippi, Georgia, Alabama, Florida, and South Carolina. Frost advisories and freeze warnings extend as far south as parts of Florida. While it’s not unusual for northern Florida to experience cold spells at this time of year, multiple South U.S. offices are alerting residents that the cold will be unusually intense.

In Atlanta’s region, the NWS cautioned that a powerful Arctic high pressure system may push into the eastern half of the country, with the cold air possibly arriving as early as Friday evening and sticking around through the weekend. Local forecasters noted that temperatures in the Midwest and Northeast look to be at the lowest for a longer stretch, but the South will also feel a pronounced chill.

Across the region, several offices issued cold-weather warnings. Jacksonville, FL warned of a Freeze Warning inland in southeast Georgia and the Suwannee Valley tonight into Friday morning, with a Frost Advisory just to the south. Temperatures could dip to about 31°F in some areas and around 33°F in frost-prone zones.

Alabama’s Birmingham office warned of a plunge in temperatures beginning Sunday, while New Orleans issued notices of a major cooldown arriving Monday morning. Charleston, SC cautioned that bitter temperatures would affect the South Carolina Lowcountry and Southeast Georgia from Sunday night into Tuesday morning, with wind chills possibly dipping into the single digits to the teens above zero on Monday morning. They urged residents to prepare now.

Overall, the cold air mass is expected to stretch across the South, even as the Midwest and Northeast brace for the coldest conditions. As the cold settles in, people are encouraged to monitor local forecasts, dress in layers, and take precautions for pets and vulnerable individuals. How far south the deep chill will reach remains a subject of ongoing updates and discussion among meteorologists. What do you think about the lingering impact of this Arctic surge on travel, power supplies, and daily routines in the southern states? Share your thoughts in the comments.

Polar Vortex Brings Extreme Cold to Southern States: What to Expect (2026)
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