South Island Braces for Major Winter Weather Event
Snowfall Intensity Reached 30 cm in Southern Alps
The MetService issued a heavy snow warning for the South Island of New Zealand on Thursday, as sub-zero temperatures and strong winds prompted travel disruptions and emergency responses across the region.
The warning, which covers mountainous areas and high-altitude roads, came as part of a broader weather system bringing heavy rain, gusts exceeding 90 km/h, and snowfall that meteorologists described as the “biggest snowfall of winter” in some locations. The New Zealand Herald reported that the snowfall began late Wednesday, with accumulations of up to 30 cm in parts of the Southern Alps.
Travel Disruptions and Road Closures Reported
Travel authorities confirmed multiple road closures, including the Crown Range Road near Wanaka, where the Wanaka App reported “minor crashes” after freezing temperatures caused black ice on highways. A 1News report cited local police confirming two non-serious incidents involving vehicles sliding on icy surfaces in Hawke’s Bay, though the region is not typically prone to such severe conditions.
Meteorologist Links Snowfall to Low-Pressure System
MetService meteorologist Sarah Thompson stated in a press release that the snowfall was driven by a low-pressure system interacting with cold air masses, creating “a high-risk environment for snow accumulation above 1,000 meters.” The agency warned of potential delays for ski resorts and mountain passes, with forecasts predicting continued heavy snow through Saturday.
Emergency Advisories and Regional Impacts
Regional councils issued advisories for residents to avoid non-essential travel, while emergency services deployed additional crews to assist stranded motorists. Residents in Queenstown and Te Anau reported significant snowfall, with some areas experiencing their first major snow event of the season.
The RNZ coverage highlighted that the weather system had also triggered flooding alerts in the lower South Island, as rain fell on saturated ground. A spokesperson for the Ministry of Civil Defence said the combination of snow, rain, and wind posed “a complex risk profile” requiring coordinated responses.
Ongoing Monitoring and Forecast Updates
As of Friday afternoon, the MetService continued to monitor the storm, with a second warning scheduled for issuance later in the day. The agency emphasized that “snowfall intensity is expected to decrease by Sunday, but lingering frost and icy conditions will persist into the following week.”