Breaking • Weather • US & Canada
By Swikriti Dandotia • Updated: January 17, 2026
A powerful polar vortex outbreak is forecast to keep much of the United States locked in below-average temperatures through the end of January, with dangerous wind chillssnow in portions of Florida this weekend — potentially marking the second consecutive year of measurable snow in the Sunshine State.
Forecasters from the National Weather Service (NWS) and the Weather Prediction Center (WPC) say this pattern is tied to an elongated polar vortex allowing cold air to spill farther south and linger longer than typical mid-winter outbreaks.
Why this polar vortex matters now
A “polar vortex” refers to a large region of cold, low-pressure air around the Arctic that typically stays north. When the jet stream dips south and weakens the vortex, frigid air can surge into the continental U.S. The current setup is allowing Arctic air to dive deep and stay in place for an extended period.
For an authoritative explainer on this phenomenon, see NOAA’s Climate.gov overview of polar vortex dynamics: Understanding the Arctic polar vortex.
Frigid air spread: regions and expected temperatures
By the weekend, the cold pool will be entrenched in the upper Midwest, Plains, and Great Lakes:
- Chicago and Minneapolis: wind chills forecast as low as -15°F to -25°F.
- Central Plains: high temperatures struggling to reach the teens and single digits — 20–30°F below average.
- East Coast cities: steep overnight lows with dangerous chills through next week.
For the latest wind chill advisories and alerts in your area, consult local NWS office forecasts: weather.gov.
Why schools are closing and travel is disrupted
Even when snowfall is limited, extreme cold and wind‐chill hazards can prompt districts to close or delay classes. Very cold mornings increase risks for students waiting at bus stops and challenge transportation systems. Diesel buses and older vehicles often struggle in subzero conditions.
If you’re checking closures, always confirm with your local school district’s official page or alert system rather than relying solely on third-party lists.
Travel impacts and safety tips
Winter travel disruptions often begin with airport delays. Live trackers like FlightAware cancellations dashboard can help you check the latest flight statuses before you head to the airport.
On the roads, a major hazard comes not from heavy snow but from refreezing and black ice. A warm afternoon followed by a rapid temperature plunge can glaze bridges and overpasses with nearly invisible ice — a common winter travel trap.
Florida and Southeast snow risk this weekend
The cold air plunging south increases the chance of a **wintry mix or snow flurries** across parts of the Florida Panhandle, southern Georgia, and coastal South Carolina this weekend. According to local meteorologists speaking to NBC affiliates in the region, a combination of lingering moisture and cold surface temperatures could bring light snow to areas that rarely see it.
Snow in Florida is uncommon, and measurable accumulation requires a tight blend of cold and moisture. If it does occur, it would be the **second consecutive winter** with Florida snow in some communities. The best way to stay updated on any official winter weather statements is through local NWS office alerts at: weather.gov.
How long the cold is expected to last
Current forecasts indicate this cold plunge could persist through the rest of January. While some long-range models show a potential moderation by early February due to a shift in the Arctic pattern, that shift can also trigger renewed cold outbreaks.
For official long-range reasoning and extended forecast discussion, see the WPC’s product page: WPC Extended Discussion.
What you should do now
- Check local wind chill advisories and adjust outdoor plans accordingly.
- Keep your phone charged and emergency winter supplies in your car.
- Bundle pets and sensitive outdoor plants during hard freezes.
- Confirm school closures with official district sources.
For continuing updates on this polar vortex event and more, visit the Swikblog homepage.
