Severe gales attaining velocities of as high as 155km/h (96mph) have caused around 90,000 homes without power and led officials to halt more than 100 flights, according to domestic outlets.
The winds are influencing the entire southern region and lower areas of the North Island, according to the country's meteorological service.
The nation's agencies have issued infrequent red wind warnings - the most severe warning - in central regions such as Wellington and Canterbury.
People have been urged to stay indoors, refrain from journeys, and make arrangements for additional power and communication outages.
Extensive Impact and Crisis Measures
The power cut seems to be impacting homes predominantly in the South Island, while agencies state that the electricity supply was being slowly brought back.
Local media have indicated that in some places structures have suffered roof damage, and power lines and trees have been toppled by the winds.
In Wellington, a person was killed after being impacted by a wooden fragment at a frequent walking route on Tuesday.
Additionally in the city, a female was pushed toward moving cars on a road by a intensive burst, in a incident that was filmed in a popular vehicle recording.
Flights in and out of the urban area have been suspended due to the winds, whereas certain highways and community centers are also closed.
Simultaneously authorities in Canterbury have declared a crisis declaration, to facilitate emergency management operations.
Strike Action During Severe Conditions
These intense gusts on this day come as tens of thousands of school staff, physicians and civil servants are engaged in what has been described as a "mega strike", calling for improved salaries and workplace environments.
But the extreme weather has pressured them to change certain arrangements, with some outdoor rallies relocated inside or cancelled.
Comparable winds are impacting the neighboring country, ushering in a heatwave to the nation's interior regions.
Officials have declared fire bans for apprehension regarding forest fires.
