A Heavy Rain Watch has been issued for Northland, Auckland and the Coromandel, with MetService warning of strengthening easterly winds, heavy rain and potential thunderstorms from this evening into Tuesday.

Locals can expect the heaviest rain in northern and eastern Northland, with rainfall totals of 90-120mm possible overnight and into Tuesday.

Intense bursts of rain and thunderstorms are also forecast.

Auckland can expect rain to spread over the area during Tuesday, accompanied by strong easterly winds.

Gusts may reach severe gale force in exposed parts of the region.

"It's been a dry but cool start to 2025, so these Heavy Rain Warnings for Northland and the Coromandel are the first of the year," says MetService Meteorologist John Law.

"The potential for intense downpours and thunderstorms within the broader rain band means some areas, especially in Northland, could experience significant rainfall in a short period."

The low pressure system will also bring gusty easterly winds to Northland and Auckland, with gusts around 100 km/h in exposed locations.

"The strongest winds and wettest weather will affect areas exposed to the east," Law adds.

"For Auckland, the heaviest rain is likely to fall north of Orewa, while the strongest winds will impact the eastern coast."

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