Intense winds attaining velocities of up to 155km/h (96mph) have caused around 90,000 properties without power and led officials to halt over 100 flights, according to domestic outlets.
The gales are affecting the whole southern region and southern sections of the northern region, as stated by the national weather agency.
Officials in New Zealand have issued infrequent red wind warnings - the most severe warning - in central regions encompassing Wellington and Canterbury.
People have been urged to avoid going outside, refrain from journeys, and get ready for further electricity and network failures.
Extensive Impact and Emergency Measures
This outage is primarily influencing homes predominantly in the southern region, although authorities say that energy was being slowly brought back.
Domestic outlets have reported that in various locations homes have lost their roofs, while power lines and trees have been toppled by the gales.
Across Wellington, a man was fatally injured after being hit by a tree branch at a well-known hiking path on Tuesday.
Meanwhile in Wellington, a woman was pushed toward moving cars on a road by a intensive burst, in a moment that was filmed in a popular vehicle recording.
Air travel to and from the urban area have been cancelled because of the weather, whereas certain highways and community centers are not operating.
Meanwhile Canterbury officials have declared a crisis declaration, to facilitate recovery activities.
Strike Action Amid Severe Weather
The wild winds on today come as tens of thousands of school staff, physicians and civil servants take part in what has been described as a "significant labor action", calling for higher wages and enhanced employment terms.
However the intense climate has pressured them to alter some of their plans, with several external protests shifted to interior venues or abandoned.
Comparable winds are also sweeping Australia, causing a high-temperature event to the country's outback.
Authorities have issued fire bans for fear of bushfires.
