Snow warning for alpine passes as South Island routes face disruption

Author: NZ Herald,
Publish Date: Wed, 24 Jun 2026, 4:00pm

Motorists travelling across South Island alpine passes are being warned to expect possible disruption from tonight, with heavy snow forecast to affect several key routes.

On State Highway 73 between Christchurch and the West Coast, MetService is forecasting rain to turn to snow overnight and says 15-25cm of snow could accumulate near the summit of Porters Pass by tomorrow.

If this materialises, it would likely require temporary closures for clearing.

Also on SH73, 2-6cm of snow is expected at Arthurs Pass, while 2-5cm is forecast for State Highway 7 at Lewis Pass, with up to 10cm possible on the eastern side of the pass.

Further south, smaller accumulations are forecast for State Highway 8 at Lindis Pass, State Highway 94 (Milford Road), and the Crown Range Road.

Contractors for NZ Transport Agency Waka Kotahi (NZTA) will be monitoring conditions and may implement closures or restrictions where necessary.

Road users are being urged to check the latest forecasts and the status of state highways on the Journey Planner before travelling.

With the potential for delays and closures, motorists are advised to carry warm clothing, water and food in case they become delayed or need to stop while weather conditions pass.

Drivers should also ensure they have sufficient fuel or battery charge in case detours or diversions are required.

At the same time, ski field operators say conditions are finally beginning to improve after a delayed start to the season.

NZSki chief executive Paul Anderson said Coronet Peak is already operating in a limited capacity, with learners’ carpets open and further terrain expected to follow.

He said Mt Hutt and The Remarkables are both expected to open in stages from Saturday, depending on conditions.

Anderson said the incoming system could deliver up to 20cm at Mt Hutt and around 10-15cm across the Southern Lakes, marking the first meaningful natural snowfall of the season after a start largely reliant on snowmaking.

Operators in Wānaka, including Cardrona Alpine Resort and Treble Cone, are also preparing for a staged start, with further cold temperatures needed to consolidate snowmaking efforts and open beginner terrain later this week.