Mangawhai / Whangarei / Northland Region

Strong Wind Watch

Period: 24hrs from 9am Thu, 11 Apr - 9am Fri, 12 Apr

Area: Northland, Auckland, Coromandel Peninsula and Great Barrier Island

Forecast: Northeast winds may approach severe gale in exposed places. Please note, winds easing in Northland and Auckland earlier Friday morning.

Heavy Rain Watch

Period: 15hrs from 6pm Thu, 11 Apr - 9am Fri, 12 Apr

Area: Northland

Forecast: A period of heavy rain, with thunderstorms and localised downpours possible. Amounts may approach warning criteria. Please note, a Severe Thunderstorm Watch will be issued later this morning for this region.

areas have a Heavy Rain Watch for 12 hours today from 6pm Thursday until 6am Friday.

Forecast: A period of heavy rain, with thunderstorms and localised downpours possible. Amounts may approach warning criteria.

Severe Thunderstorm Watch

Period: 14hrs from 10pm Thu, 11 Apr - noon Fri, 12 Apr

Area: Northland, Auckland, Great Barrier Island, Coromandel Peninsula, Waikato, Bay of Plenty

Forecast: An active front is forecast to move eastwards over northern New Zealand tonight and Friday morning, bringing a period of heavy rain. Thunderstorms are also possible, and this Watch is an alert to the potential development of severe thunderstorms that could produce localised downpours of 25 to 40 mm/h in Northland, Great Barrier Island, Auckland, Coromandel Peninsula, Bay of Plenty north and west of Tauranga, and eastern Waikato near the ranges. Note, these downpours could occur with or without thunderstorms. 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. Driving conditions will also be hazardous with surface flooding and poor visibility in heavy rain.

Warkworth Region

Strong Wind Watch

Period: 24hrs from 9am Thu, 11 Apr - 9am Fri, 12 Apr

Area: Northland, Auckland, Coromandel Peninsula and Great Barrier Island

Forecast: Northeast winds may approach severe gale in exposed places. Please note, winds easing in Northland and Auckland earlier Friday morning.

Severe Thunderstorm Watch

Period: 14hrs from 10pm Thu, 11 Apr - noon Fri, 12 Apr

Area: Northland, Auckland, Great Barrier Island, Coromandel Peninsula, Waikato, Bay of Plenty

Forecast: An active front is forecast to move eastwards over northern New Zealand tonight and Friday morning, bringing a period of heavy rain. Thunderstorms are also possible, and this Watch is an alert to the potential development of severe thunderstorms that could produce localised downpours of 25 to 40 mm/h in Northland, Great Barrier Island, Auckland, Coromandel Peninsula, Bay of Plenty north and west of Tauranga, and eastern Waikato near the ranges. Note, these downpours could occur with or without thunderstorms. 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. Driving conditions will also be hazardous with surface flooding and poor visibility in heavy rain.