Today 3rd Dec

AUCKLAND

Periods of rain with heavy falls developing this morning. Thunderstorms, downpours and large hail possible from around midday until evening. Northerlies, strong in exposed places, turning southwesterly this afternoon, gale gusting 90 km/h in exposed places from late evening.

Heavy Rain Watch

Period: 11hrs from 10am - 9pm Wed, 3 Dec

Area: Auckland, Great Barrier Island and Coromandel Peninsula

Forecast: Periods of heavy rain with thunderstorms and localised downpours possible. Amounts may approach warning criteria, and possibly exceed them in downpours. Moderate chance of upgrading to a Warning.

Severe Thunderstorm Watch

Period: 7hrs 30min from 9:30am - 5pm Wed, 3 Dec

Area: Northland, Auckland, Great Barrier Island

Forecast: Unstable showery conditions spread southwards onto the upper North Island today, with a moderate risk of thunderstorms over Northland and Auckland. Some of these thunderstorms may become SEVERE across eastern parts of Northland this morning and early afternoon, then Auckland around midday and through the afternoon, with localised downpours of 25 to 40 mm/h, large hail in excess of 20 mm diameter, strong wind gusts of 90 km/h, and a slight chance of a damaging tornado. Expect thunderstorm activity to ease by evening.

Strong Wind Watch

Period: 10hrs from 9pm Wed, 3 Dec - 7am Thu, 4 Dec

Area: Northland and Auckland, including Great Barrier Island

Forecast: Southwest winds may approach severe gale in exposed places. Moderate chance of upgrading to a Warning.

NORTHLAND

Rain with heavy falls developing this morning. Thunderstorms, downpours and large hail possible until mid afternoon. Northwesterlies, turning gale southwesterly this evening, gusting 90 km/h.

Heavy Rain Watch

Period: 8hrs from 9am - 5pm Wed, 3 Dec

Area: Northland

Forecast: Periods of heavy rain with thunderstorms and localised downpours possible. Amounts may approach warning criteria, and possibly exceed them in downpours. Moderate chance of upgrading to a Warning.

Severe Thunderstorm Watch

Period: 7hrs 30min from 9:30am - 5pm Wed, 3 Dec

Area: Northland, Auckland, Great Barrier Island

Forecast: Unstable showery conditions spread southwards onto the upper North Island today, with a moderate risk of thunderstorms over Northland and Auckland. Some of these thunderstorms may become SEVERE across eastern parts of Northland this morning and early afternoon, then Auckland around midday and through the afternoon, with localised downpours of 25 to 40 mm/h, large hail in excess of 20 mm diameter, strong wind gusts of 90 km/h, and a slight chance of a damaging tornado. Expect thunderstorm activity to ease by evening.

Strong Wind Watch

Period: 10hrs from 9pm Wed, 3 Dec - 7am Thu, 4 Dec

Area: Northland and Auckland, including Great Barrier Island

Forecast: Southwest winds may approach severe gale in exposed places. Moderate chance of upgrading to a Warning.