Almost 2000 lightning strikes hit the South Island overnight as downpours batter parts of the West Coast.
MetService has recorded 1970 lightning strikes over the South Island since late Wednesday night.
Orange heavy rain warnings covered Westland and the headwaters of Canterbury and Otago lakes and rivers until Thursday evening, and Fiordland north of Doubtful Sound to 7am.
The forecaster lifted a severe thunderstorm watch for Westland and part of Fiordland.
The Westland region was forecast to have up to 240mm of rain in the ranges by this evening, with 100mm-140mm expected near the coast and localised downpours of up to 45mm an hour during thunderstorms.