A council spokesperson said the highway has been cleared, but remains closed including Lowther Rd and Ellis Rd.
Motorists, especially those with high-sided vehicles, including caravans and campervans should use extreme caution while driving in the area today or avoid driving at all, if possible.
Meanwhile, Wreys Bush Mossburn Rd is closed between Cemetery Rd and Chewings Rd after large trees were blown across the road this afternoon.
Contractors are on site but it would take time to clear the trees.
The council said it had also received reports of trees blown down across Wairio Wreys Bush Rd.
Drivers are advised to drive to the conditions and be wary of trees and debris across the roads.