Severe thunderstorms and torrential rain are forecast to hit Auckland early this afternoon.
The MetService weather radar shows the thunderstorms are near Helensville, Kaukapakapa and Parakai, and moving south-east towards the Auckland CBD.
They were expected to lie near Auckland, Albany, Dairy Flat and Whangaparaoa at 12:22 pm and near Auckland and the inner Hauraki Gulf at 12:52 pm.
These thunderstorms are expected to be accompanied by torrential rain, that can cause surface and/or flash flooding about streams, gullies and urban areas, and make driving conditions extremely hazardous, MetService says.
Gulf Harbour resident Steve Kenyon says it was like a "mini tornado" struck his backyard around 1pm, flinging patio furniture over.
A severe thunderstorm watch also remains in force for Waikato.
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