Flash floods in Auckland

Auckland Police are advising motorists be mindful of flash flooding on several routes in and around the city due to heavy downpours in the last hour.

Where motorists are already in transit, they should drive to the conditions by slowing down, use headlights and increase following distances.

"Most of all, motorists should be patient and expect journeys to take a little longer than usual this afternoon but, if you don't have to drive anywhere, don't," Inspector Gavin MacDonald of Auckland City Police said.

New Zealand Transport Agency has advised that State Highway 18 between Brigham Creek and Greenhithe Rds is closed due to debris on the road.