Snow and high winds are causing disruption across the South Island. Check updates for weather, roads, schools and flights here.
Check the latest severe weather warnings on MetService's website.
Aurora Energy has also warned of possible power cuts in Otago, depending on snowfall.
People are advised to have adequate food supplies and an alternative source of heating and cooking, along with warm clothing and bedding, a torch and battery radio.
At 5.30pm, eight state highways were closed because of ice, snow, frost and gales. The following highways will remain closed overnight:
NZTA has also issued a flooding warning for SH6 from the Fox Glacier to Haast in the Westland National Park.