A polar vortex is set to grip much of the U.S. What does that mean?A polar vortex is causing severe cold temperatures across the U.S., with dangerous wind chills and record lows expected in areas unaccustomed to such weather.
Warning as life-threatening polar vortex will engulf parts of the USA polar vortex is bringing dangerously low temperatures to much of the US, posing serious health and infrastructure risks.
A polar vortex is set to grip much of the U.S. What does that mean?A polar vortex is causing severe cold temperatures across the U.S., with dangerous wind chills and record lows expected in areas unaccustomed to such weather.
Warning as life-threatening polar vortex will engulf parts of the USA polar vortex is bringing dangerously low temperatures to much of the US, posing serious health and infrastructure risks.