“We apologise to road users for this inconvenience but safety is a priority and while the winds stay extreme, this is a short term protection,” said Lee Wright, Transport Agency Journey Manager.
“We will reassess the closure later tonight so drivers should check our web map for updates.”
The alternative route is State Highway 7 via Lewis Pass which is still open but a strong wind warning is in place. Motorists are advised to take extreme care or delay their travel.
The Met Service is forecasting severe gales for much of the South Island and Greymouth had thunderstorms this afternoon.
Check this map on the Transport Agency's Traffic and Travel web pages for updates or check the table view for specific highway advice.
- For further information, check the Met Service severe weather warnings and the rain radar maps for your area.
- Video of a dust storm in Mid Canterbury on the stuff web from earlier today.