Intense gusts hitting velocities of up to 155km/h (96mph) have resulted in nearly 90,000 households lacking electricity and led officials to call off in excess of 100 air travel services, as reported by domestic outlets.
These gusts are impacting the entire South Island and southern sections of the northern region, according to the national weather agency.
The nation's agencies have announced infrequent severe gust advisories - the highest alert level - in key areas encompassing these major districts.
Locals have been advised to stay indoors, avoid travel, and get ready for additional electricity and network failures.
Extensive Impact and Emergency Measures
The electricity loss appears to be affecting homes mainly in the South Island, though agencies report that the electricity supply was being gradually reinstated.
Local media have indicated that in certain areas homes have lost their roofs, whereas trees and electricity poles have been knocked down by the winds.
Across Wellington, a person was lost his life after being struck by a falling limb at a popular trail walking spot on Tuesday.
Additionally in the city, a female was blown onto approaching vehicles on a street by a strong gust of wind, in a moment that was captured in a popular vehicle recording.
Aircraft services in and out of the city have been cancelled as a result of the winds, whereas various routes and public facilities are shut down.
At the same time authorities in Canterbury have announced a emergency situation, to facilitate disaster response efforts.
Labor Protests During Extreme Weather
The wild winds on this day coincide with many of school staff, physicians and civil servants are engaged in what has been called a "significant labor action", requesting improved salaries and workplace environments.
But the extreme weather has pressured them to modify some of their plans, with some outdoor rallies relocated inside or abandoned.
Similar gusts are affecting the nearby nation, causing a heatwave to the country's outback.
Agencies have declared fire bans for fear of bushfires.