Weather tracker: Polar wind set to end warmth in US south and midwest
Spring-like weather experienced by many Americans to end, while heavy snow in Japan brings deadly conditions
TL;DR
- US experiences a shift from record warmth to extreme cold with Arctic air and potential snow.
- São Paulo, Brazil recorded its highest December temperature of 36.2C.
- Japan is facing severe winter weather with heavy snow and icy conditions, causing a deadly pile-up.
- New Zealand's South Island has been hit by severe summer storms, including a 'supercell', with further disruptive weather expected on the North Island.