A heavy rain watch is in force for the Bay of Plenty.

The MetService is forecasting heavy rain for parts of the North Island.

"A front is expected to move east across the North Island today bringing a burst of heavy rain and isolated thunderstorms," says a spokesperson for the weather organisation.

"Heavy Rain Watches are in force for Northland and Eastern Bay of Plenty, and now also includes Auckland.

"People in these areas are advised to stay up to date with the latest forecasts in case any changes are made, or further areas are added."

Image: MetService.

Heavy Rain Watch
Area: Northland and Auckland including Great Barrier Island
Valid: 5 hours from 8am Fri 10 Mar to 1pm Fri 10 Mar
Forecast: A period of heavy rain and isolated thunderstorms. Rainfall amounts may approach short duration warning criteria.

Area: Bay of Plenty east of Opotiki
Valid: 9 hours from 11am Fri 10 Mar to 8pm Fri 10 Mar
Forecast: Periods of heavy rain and isolated thunderstorms. Rainfall amounts may approach warning criteria.