WeatherWatch.co.nz is predicting a band of torrential rain/showers to move across Auckland, Waikato and Northland within the next few hours.

Some areas are expected to receive thunderstorms.

Motorists are advised to drive with caution and be prepared for surface flooding.

It's possible some downpours could cause localised minor surface and flash flooding in low lying areas.

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WeatherWatch.co.nz also believes there is a low to moderate risk of an isolated small tornado within the incoming rain band for Northland, Auckland and Waikato.