Intense gusts hitting speeds of as high as 155km/h (96mph) have resulted in nearly 90,000 homes without power and compelled authorities to cancel more than 100 air travel services, based on regional news sources.
The gales are affecting the whole southern region and lower areas of the northern region, as stated by the national weather agency.
The nation's agencies have issued rare severe gust advisories - the top caution category - in central regions encompassing Wellington and Canterbury.
Locals have been advised to stay indoors, avoid travel, and prepare for more electricity and network failures.
Broad Damage and Emergency Response
The power cut seems to be impacting households mainly in the South Island, although agencies report that the electricity supply was being restored progressively.
Local media have indicated that in certain areas roofs have been ripped off houses, and power lines and trees have been brought down by the gusts.
In Wellington, a individual was fatally injured after being struck by a wooden fragment at a well-known hiking path on Tuesday.
Meanwhile in Wellington, a female was pushed toward approaching vehicles on a street by a intensive burst, in a incident that was recorded in a popular vehicle recording.
Air travel to and from the urban area have been cancelled because of the winds, while some roads and libraries are also closed.
At the same time local leaders have declared a crisis declaration, to facilitate disaster response efforts.
Strike Action Amid Harsh Conditions
The powerful gales on this day coincide with many of educators, medical professionals and government employees are engaged in what has been called a "major walkout", demanding higher wages and enhanced employment terms.
However the severe conditions has pressured them to modify certain arrangements, with various open-air gatherings shifted to interior venues or called off.
Like conditions are impacting Australia, causing a heatwave to the country's outback.
Authorities have announced burning restrictions for fear of wildfires.
