A large tree has fallen on State Highway 1 just north of Auckland, temporarily blocking both lanes.
According to the NZ Transport Agency the tree fell near the Top of the Dome, between Warkworth and Wellsford.
A Fire and Emergency NZ spokesperson told 1 NEWS two fire engines were sent to the scene at 3:20pm.
They were not able to move the tree as it was too big, and contractors were called in.
One lane is now open under stop/go management.
NZTA warns motorists there is heavy congestion in the area.
Further south in Wellington, wild spring weather has also been causing chaos.
An airborne trampoline has damaged power lines in Stokes Valley and power lines are also damaged in Wainuiomata.
MetService warns the squally southerly change is expected to move north, reaching Gisborne by late afternoon.
"Any thunderstorms that occur will be accompanied by brief heavy rain and hail (with snow above 800 metres), and strong, squally southerly winds gusting 90 to 110 km/h for a time, especially about coastal parts of Wellington, Wairarapa, Hawkes Bay and Gisborne," MetService says.
There is also a strong wind watch for Hawke's Bay, the Tararua District and Wairarapa.