winter

Delhi and northern states annually face smog during the winter due to a confluence of dropping temperatures, smoke, dust, low wind speeds, vehicle emissions and crop stubble burning.

"Getting back to skiing without pain has been an incredible journey," said Vonn who may look to target a place on the US team for the 2026 Winter Olympics in Milan-Cortina.

Vonn won Olympic downhill gold at the Winter Games in Vancouver in 2010, where she also took bronze in the Super-G.

When does winter 2024 start and when is the solstice?

The cold spell looks set to last for about a week for many, before milder Atlantic air returns in time for the start of winter.