Published on: 21 July 2017
Two storm systems are forecast to bring heavy rainfall, snow, strong winds, and rough waters to New Zealand through July 22. A low-pressure system is predicted to move eastward across central New Zealand July 21-22, intensifying weather across South Island, especially eastern districts. Heavy rainfall is likely to affect much of the island; however, the heaviest downpours are forecast to occur in Canterbury and eastern Otago, including Dunedin. Strong winds and heavy snowfall could cause blizzard conditions, especially in mountainous areas of South Island. Authorities could close mountain passes in Otago, Marlborough, and Canterbury districts.