Severe gusts attaining velocities of approximately 155km/h (96mph) have left approximately 90,000 properties lacking electricity and compelled agencies to halt over 100 air travel services, according to regional news sources.
The winds are affecting the whole South Island and southern sections of the northern region, per the country's meteorological service.
Officials in New Zealand have announced rare red wind warnings - the highest alert level - in core zones including Wellington and Canterbury.
Residents have been advised to stay indoors, avoid travel, and make arrangements for additional utility disruptions.
Extensive Damage and Emergency Measures
The power cut appears to be affecting residences mostly in the South Island, although officials say that energy was being gradually reinstated.
Domestic outlets have reported that in certain areas homes have lost their roofs, and trees and electricity poles have been brought down by the winds.
Across Wellington, a man was killed after being hit by a wooden fragment at a frequent walking route on Tuesday.
Also in the capital, a female was blown onto moving cars on a thoroughfare by a powerful blast, in a moment that was recorded in a popular vehicle recording.
Air travel entering and leaving the metropolis have been halted because of the gusts, while certain highways and community centers are shut down.
At the same time Canterbury officials have declared a state of emergency, to facilitate emergency management operations.
Labor Protests Amid Severe Weather
The wild winds on this day occur while numerous of teachers, doctors and other public workers are participating in what has been termed a "mega strike", requesting improved salaries and workplace environments.
But the extreme weather has forced them to modify some of their plans, with some outdoor rallies relocated inside or cancelled.
Comparable winds are also sweeping the nearby nation, bringing a high-temperature event to the nation's interior regions.
Agencies have announced flame prohibitions for concern about bushfires.