Strong winds in Whanganui cut power to thousands and temporarily closed the Cobham Bridge early on Friday.
The winds brought down a light post on the State Highway 3 bridge as southerly gales up to 81km/h moved across Whanganui.
A severe weather watch is in place in west Whanganui and Taranaki.
Police were called to help with traffic control until the road fully reopened shortly before 8am.
Meanwhile, 6678 customers lost power at 6am after a tree went through lines on the corner of Francis and Rapanui Rds.