Issued at 8:04am 13/02/2026

Valid from 8:04am 13/02/2026 to 1:00am 14/02/2026

A northward moving front brings a moderate risk of thunderstorms during the morning to Westland, and during the morning and afternoon to Grey and Buller Districts, also the Canterbury Plains south of Christchurch during the afternoon and early evening. Thunderstorms will generate localised heavy rain, up to 20 mm per hour. A low risk of thunderstorms affects surrounding eastern and northern areas of the South Island, as indicated on the chart. Meanwhile, a very warm and moist air mass covers the North Island. Broad scale Watches and a Warning for heavy rain are in force for many parts of the Island. From Northland southwards to the eastern hill-country of Taranaki, Whanganui, Manawatu and northern Wairarapa, including the central high country and Hawke's Bay, the risk of thunderstorms is considered moderate (mostly from afternoon onwards but also during the morning for Northland and Auckland). There is also a moderate risk of localised downpours (with or without thunderstorms) in these areas, with rainfall rates of 25 to 40 mm per hour (and possibly more). A low risk of thunderstorms and localised downpours extends over the rest of Taranaki, the lower North Island and Gisborne/Tairawhiti. There is minimal risk of thunderstorms or significant convection elsewhere during Friday.

Issued at 10:30am 13/02/2026

Valid from 1:00am 14/02/2026 to 1:00pm 14/02/2026

A very warm, moist air mass persists over the North Island with a low risk of both thunderstorms and localised downpours for northern areas, as indicated on the chart. However, before dawn the risk of localised downpours (25 to 40 mm per hour, possibly more) is considered moderate for Coromandel Peninsula, Bay of Plenty and Gisborne/Tairawhiti north of Tolaga Bay. Meanwhile, a front brings rain to the south of the South Island. There is an associated low risk of embedded thunderstorms for Fiordland and Southland after dawn. There is minimal risk of thunderstorms or significant convection elsewhere during this time.