Intense gales reaching speeds of as high as 155km/h (96mph) have resulted in nearly 90,000 homes experiencing outages and led agencies to cancel in excess of 100 aircraft departures, according to regional news sources.
The gales are influencing the complete South Island and lower areas of the North Island, as stated by the weather forecasting body.
Officials in New Zealand have issued rare severe gust advisories - the top caution category - in central regions encompassing Wellington and Canterbury.
People have been urged to stay indoors, stay off roads, and make arrangements for more utility disruptions.
Widespread Destruction and Emergency Response
The electricity loss appears to be affecting homes mainly in the southern region, though authorities state that energy was being restored progressively.
Domestic outlets have stated that in certain areas roofs have been ripped off houses, whereas power lines and trees have been knocked down by the gusts.
Across Wellington, a man was lost his life after being struck by a wooden fragment at a popular trail walking spot on Tuesday.
Meanwhile in Wellington, a female was blown onto approaching vehicles on a street by a intensive burst, in a event that was captured in a viral dashcam video.
Flights in and out of the metropolis have been cancelled because of the gusts, while various routes and public facilities are also closed.
At the same time local leaders have declared a emergency situation, to assist recovery activities.
Labor Protests Amid Harsh Conditions
The powerful gales on this day come as numerous of school staff, physicians and civil servants are engaged in what has been termed a "major walkout", calling for higher wages and enhanced employment terms.
But the extreme weather has pressured them to change certain arrangements, with some outdoor rallies moved indoors or called off.
Like conditions are impacting the nearby nation, bringing a heatwave to the remote areas.
Officials have issued flame prohibitions for fear of forest fires.