Weather Warning for Auckland and Warkworth region

Severe Thunderstorm Watch

Period: 8hrs from 2pm - 10pm Tue, 22 Nov

Area: Northland, Auckland, Great Barrier Island, Coromandel Peninsula, Waikato, Waitomo, Taumarunui, Bay of Plenty, Rotorua, Taupo, Taranaki, Taihape, Wanganui

Forecast: An active band of thunderstorms is expected to move eastwards across the North Island this afternoon and evening. Some of these thunderstorms may be SEVERE producing damaging wind gusts in excess of 110 km/h and a few small tornadoes, and in addition for regions from Waikato and Bay of Plenty southwards localised downpours of 25 to 40 mm/hr are possible. These squally winds and possible small tornadoes may cause some structural damage, including damage to trees and power lines, and make driving hazardous. If any tornadoes occur, they will only affect very localised areas. Rainfall of this intensity can cause surface and/or flash flooding, especially about low-lying areas such as streams, rivers or narrow valleys, and may also lead to slips.

Strong Wind Watch

Period: 13hrs from 5pm Tue, 22 Nov - 6am Wed, 23 Nov

Area: Auckland, Great Barrier Island and Coromandel Peninsula

Forecast: Northerly winds changing westerly around midnight. Winds may approach severe gale in exposed places.

Weather Warning for Northland

Heavy Rain Watch

Period: 17hrs from 9am Tue, 22 Nov - 2am Wed, 23 Nov

Area: Northland, especially in the north and east

Forecast: Periods of heavy rain and thunderstorms, with downpours possible. Rainfall amounts may approach warning criteria.

Severe Thunderstorm Watch

Period: 8hrs from 2pm - 10pm Tue, 22 Nov

Area: Northland, Auckland, Great Barrier Island, Coromandel Peninsula, Waikato, Waitomo, Taumarunui, Bay of Plenty, Rotorua, Taupo, Taranaki, Taihape, Wanganui

Forecast: An active band of thunderstorms is expected to move eastwards across the North Island this afternoon and evening. Some of these thunderstorms may be SEVERE producing damaging wind gusts in excess of 110 km/h and a few small tornadoes, and in addition for regions from Waikato and Bay of Plenty southwards localised downpours of 25 to 40 mm/hr are possible. These squally winds and possible small tornadoes may cause some structural damage, including damage to trees and power lines, and make driving hazardous. If any tornadoes occur, they will only affect very localised areas. Rainfall of this intensity can cause surface and/or flash flooding, especially about low-lying areas such as streams, rivers or narrow valleys, and may also lead to slips.

Strong Wind Watch

Period: 11hrs from 3pm Tue, 22 Nov - 2am Wed, 23 Nov

Area: Northland

Forecast: Northerly winds may approach severe gale in exposed places.