Two Cook Strait ferry crossings have been canned, as central parts of the country brace for wild weather

InterIslander

A low-pressure system's bringing rain, as well as thunderstorms and wind.

Metservice has also issued a heavy rain warning for the Wairoa district.

Interislander's cancelled two crossings today, citing rough seas, while 4 metre southerly swells are expected to batter the south and east coasts of the North Island.