Severe gusts hitting velocities of as high as 155km/h (96mph) have resulted in around 90,000 households without power and compelled authorities to halt more than 100 aircraft departures, according to regional news sources.
The gales are affecting the complete South Island and southern sections of the northern region, as stated by the national weather agency.
The nation's agencies have issued infrequent red wind warnings - the highest alert level - in key areas encompassing Wellington and Canterbury.
People have been encouraged to avoid going outside, stay off roads, and make arrangements for more electricity and network failures.
Extensive Destruction and Crisis Response
The electricity loss appears to be affecting households predominantly in the southern region, though agencies say that the electricity supply was being restored progressively.
Domestic outlets have stated that in certain areas structures have suffered roof damage, and utility poles and vegetation have been knocked down by the winds.
Across Wellington, a man was lost his life after being struck by a wooden fragment at a frequent walking route on Tuesday.
Additionally in the city, a female was swept into oncoming traffic on a street by a intensive burst, in a event that was recorded in a popular vehicle recording.
Aircraft services entering and leaving the metropolis have been cancelled because of the gusts, and some roads and libraries are also closed.
Simultaneously local leaders have announced a state of emergency, to assist emergency management operations.
Work Stoppages During Severe Weather
The powerful gales on today come as tens of thousands of teachers, doctors and other public workers are engaged in what has been termed a "significant labor action", demanding improved salaries and workplace environments.
But the intense climate has pressured them to alter certain arrangements, with various open-air gatherings shifted to interior venues or abandoned.
Similar gusts are affecting the nearby nation, ushering in a high-temperature event to the country's outback.
Authorities have issued fire bans for concern about bushfires.