Wellington District Police are urging people across Porirua and the Hutt Valley to delay travel this evening as heavy rain and strong winds batter the region.
Police say there have been reports of trees down, surface flooding and high winds across the district, creating hazardous driving conditions on local roads.
In a public advisory, Wellington District Police said anyone who must travel should take extreme care.
Drivers are asked to reduce their speed, watch for debris and possible flash flooding, and maintain a longer following distance than usual.
The warning comes as bands of heavy rain move through the wider Wellington region, affecting main routes including State Highway 1 and 2, as well as suburban and rural roads.
Police are reminding residents to check conditions before heading out and to consider postponing non-essential trips until conditions improve.
Updates will be provided as more information becomes available.