A severe weather warning has been issued for more rain and snow that's set to batter the country today.

MetService is forecasting more heavy snow to nearly sea level in South Westland and Fiordland.

Snowfalls will affect all the main alpine passes and some roads in Southland and Otago.

Motorists are being advised to take extra care and check road conditions before travelling.

Heavy rain is also forecast for the Tararua Ranges today with 100 to 140 millimetres expected.

Warnings for severe gales in parts of Gisborne, Hawke's Bay and Wairarapa have been lifted.