A northerly rainband with embedded thunderstorms or intense localised downpours is expected to move into western Bay of Plenty late afternoon or early this evening.
The MetService says they will then move slowly eastwards to lie near East Cape tomorrow morning.
In Bay of Plenty, Rotorua, and northern/eastern parts of the Taupo district, starting from about 5pm today (Thursday) and continuing through to about dawn Friday, and also about northern parts of Gisborne (north of about Tokomaru Bay) from about midnight to 9am Friday, intense localised downpours of 20-50mm/hr are likely, which may occur with or without thunderstorms.
"Rainfall of this intensity can cause flash flooding, especially about low-lying areas such as streams, rivers or narrow valleys, and may also lead to slips," says the MetService.
"Driving conditions will also be hazardous (especially at night) with surface flooding and poor visibility in heavy rain."
This watch affects people in the following weather forecast districts:
Bay of Plenty