Powerful gusts attaining velocities of up to 155km/h (96mph) have caused approximately 90,000 households lacking electricity and led agencies to cancel in excess of 100 air travel services, based on local media.
The gales are influencing the whole South Island and lower areas of the northern region, according to the weather forecasting body.
New Zealand authorities have announced infrequent severe gust advisories - the most severe warning - in core zones such as Canterbury and Wellington.
People have been encouraged to stay indoors, refrain from journeys, and make arrangements for further electricity and network failures.
Broad Impact and Crisis Measures
The power cut seems to be impacting residences mainly in the South Island, although officials report that energy was being restored progressively.
Local media have reported that in some places homes have lost their roofs, while trees and electricity poles have been toppled by the winds.
In Wellington, a person was lost his life after being struck by a tree branch at a frequent walking route on Tuesday.
Also in the capital, a woman was pushed toward approaching vehicles on a thoroughfare by a powerful blast, in a incident that was filmed in a widely shared car camera footage.
Flights entering and leaving the city have been halted as a result of the gusts, and certain highways and community centers are not operating.
Meanwhile Canterbury officials have issued a emergency situation, to support emergency management operations.
Labor Protests Alongside Harsh Conditions
The powerful gales on this day coincide with many of educators, medical professionals and government employees are engaged in what has been termed a "significant labor action", calling for improved salaries and workplace environments.
However the severe conditions has compelled them to alter various scheduled activities, with some outdoor rallies relocated inside or called off.
Like conditions are also sweeping Australia, causing a high-temperature event to the country's outback.
Agencies have issued flame prohibitions for apprehension regarding wildfires.