Polar vortex 2026: What it means and which US states will face extreme cold amid Winter Storm Fern
A polar vortex expansion is bringing extreme cold and heavy snow to over 150 million Americans across two dozen states. Winter Storm Fern is set to cause significant travel disruptions and potential blackouts, with some areas facing over 24 hours of subzero temperatures, snow, and ice.
A polar vortex expansion is bringing extreme cold and heavy snow to over 150 million Americans across two dozen states. Winter Storm Fern is set to cause significant travel disruptions and potential blackouts, with some areas facing over 24 hours of subzero temperatures, snow, and ice.
