Powerful winds attaining speeds of approximately 155km/h (96mph) have caused nearly 90,000 households lacking electricity and forced officials to call off in excess of 100 flights, according to domestic outlets.
The winds are affecting the whole South Island and lower areas of the northern region, according to the country's meteorological service.
New Zealand authorities have issued rare severe gust advisories - the highest alert level - in core zones encompassing Canterbury and Wellington.
Residents have been advised to remain inside, avoid travel, and get ready for more utility disruptions.
Widespread Damage and Emergency Response
The power cut is primarily influencing homes predominantly in the southern region, though authorities say that energy was being slowly brought back.
Local media have stated that in various locations homes have lost their roofs, and utility poles and vegetation have been brought down by the gales.
Across Wellington, a man was fatally injured after being hit by a falling limb at a well-known hiking path on earlier this week.
Also in the capital, a individual was blown onto approaching vehicles on a road by a intensive burst, in a moment that was recorded in a popular vehicle recording.
Air travel to and from the city have been cancelled because of the gusts, and some roads and libraries are shut down.
Meanwhile Canterbury officials have announced a emergency situation, to facilitate disaster response efforts.
Strike Action Amid Severe Weather
These intense gusts on today occur while tens of thousands of teachers, doctors and other public workers are engaged in what has been called a "mega strike", calling for higher wages and enhanced employment terms.
But the extreme weather has forced them to change some of their plans, with several external protests shifted to interior venues or abandoned.
Like conditions are also sweeping Australia, ushering in a period of extreme heat to the remote areas.
Agencies have announced burning restrictions for apprehension regarding wildfires.
