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Thunderstorms could again bring heavy rain and hail to the lower South Island this afternoon and evening.
MetService says daytime heating and cool temperatures at upper levels are expected to bring showers over the southeast of the South Island and even thunderstorms.
For eastern and parts of central Otago and Southland there is a moderate risk of thunderstorms this afternoon and evening which could bring heavy rain of 10mm to 25mm an hour and hail.
For other parts of the South there is a low risk, which extends as far north as South Canterbury.
There is also a chance of thunderstorms in parts of Fiordland and southern Westland.
Thunderstorms rumbled across parts of Otago late yesterday afternoon, bringing heavy showers.
An orange heavy rain warning is also in place for Westland from Otira south from 9am yesterday morning to 6pm tomorrow.
The MetService warned heavy rain could cause streams and rivers to rise rapidly. Surface flooding and slips are also possible and driving conditions may be hazardous.
Total rain accumulation for the event could reach above 500mm.