Waka Kotahi NZTA lowered speed limits and closed some lanes on the Auckland Harbour Bridge because of high winds this afternoon.
Commuters who spoke to the Herald described peals of thunder overhead as traffic backed up from the bridge to Spaghetti Junction.
The transport agency alerted the closures and speed restrictions at 1.30pm today. The lanes had since been reopened.
Motorcyclists and drivers of high-sided vehicles have been warned to take care, while Waka Kotahi advised those motorists to use State Highways 16 or 18.