Intense winds hitting speeds of up to 155km/h (96mph) have left nearly 90,000 properties lacking electricity and led authorities to cancel over 100 flights, according to domestic outlets.
The gales are impacting the entire South Island and southern parts of the northern region, according to the national weather agency.
Officials in New Zealand have released uncommon red wind warnings - the highest alert level - in core zones including Wellington and Canterbury.
Locals have been advised to remain inside, refrain from journeys, and make arrangements for more electricity and network failures.
Broad Impact and Emergency Measures
The electricity loss is primarily influencing households predominantly in the southern region, while authorities state that the electricity supply was being slowly brought back.
Regional news have indicated that in certain areas structures have suffered roof damage, while utility poles and vegetation have been toppled by the gusts.
Within the capital, a person was lost his life after being struck by a tree branch at a popular trail walking spot on Tuesday.
Additionally in the city, a female was swept into moving cars on a thoroughfare by a powerful blast, in a moment that was filmed in a widely shared car camera footage.
Air travel to and from the city have been halted because of the weather, while certain highways and community centers are also closed.
Simultaneously Canterbury officials have declared a emergency situation, to support emergency management operations.
Strike Action During Harsh Weather
The powerful gales on today occur while many of educators, medical professionals and government employees are engaged in what has been described as a "major walkout", calling for improved salaries and workplace environments.
However the extreme weather has pressured them to modify some of their plans, with several external protests shifted to interior venues or called off.
Comparable winds are also sweeping Australia, ushering in a period of extreme heat to the nation's interior regions.
Authorities have issued flame prohibitions for apprehension regarding forest fires.
