Intense gusts hitting speeds of as high as 155km/h (96mph) have resulted in approximately 90,000 homes without power and forced authorities to call off in excess of 100 flights, based on regional news sources.
The gales are influencing the entire South Island and southern sections of the northern region, according to the country's meteorological service.
Officials in New Zealand have released rare severe gust advisories - the highest alert level - in central regions such as these major districts.
People have been encouraged to remain inside, avoid travel, and get ready for additional electricity and network failures.
Widespread Damage and Crisis Measures
The electricity loss appears to be affecting households predominantly in the South Island, though authorities say that energy was being restored progressively.
Local media have reported that in certain areas structures have suffered roof damage, while power lines and trees have been knocked down by the gales.
Within the capital, a individual was lost his life after being hit by a wooden fragment at a popular trail walking spot on Tuesday.
Also in the capital, a woman was blown onto approaching vehicles on a street by a powerful blast, in a moment that was filmed in a widely shared car camera footage.
Flights entering and leaving the city have been halted as a result of the winds, while some roads and libraries are also closed.
Meanwhile Canterbury officials have issued a state of emergency, to support emergency management operations.
Labor Protests Alongside Severe Weather
The powerful gales on this day coincide with many of teachers, doctors and other public workers are engaged in what has been described as a "major walkout", requesting improved salaries and workplace environments.
But the extreme weather has forced them to alter certain arrangements, with some outdoor rallies moved indoors or abandoned.
Like conditions are also sweeping the nearby nation, ushering in a heatwave to the nation's interior regions.
Authorities have issued fire bans for fear of bushfires.
