Severe gusts hitting velocities of approximately 155km/h (96mph) have left nearly 90,000 properties experiencing outages and led officials to cancel more than 100 air travel services, according to domestic outlets.
The winds are influencing the entire South Island and lower areas of the northern region, according to the country's meteorological service.
New Zealand authorities have issued uncommon red wind warnings - the most severe warning - in central regions encompassing these major districts.
Locals have been advised to remain inside, refrain from journeys, and make arrangements for additional electricity and network failures.
Extensive Damage and Crisis Response
The electricity loss seems to be impacting households mainly in the South Island, though officials report that power was being slowly brought back.
Regional news have stated that in certain areas homes have lost their roofs, whereas utility poles and vegetation have been knocked down by the winds.
Across Wellington, a person was fatally injured after being struck by a tree branch at a popular trail walking spot on Tuesday.
Additionally in the city, a female was blown onto oncoming traffic on a thoroughfare by a intensive burst, in a incident that was recorded in a popular vehicle recording.
Aircraft services to and from the city have been halted because of the gusts, and some roads and libraries are not operating.
Meanwhile authorities in Canterbury have announced a emergency situation, to support recovery activities.
Work Stoppages Amid Severe Conditions
These intense gusts on Thursday occur while many of teachers, doctors and other public workers take part in what has been described as a "mega strike", calling for higher wages and enhanced employment terms.
But the extreme weather has pressured them to alter some of their plans, with various open-air gatherings shifted to interior venues or cancelled.
Like conditions are affecting the nearby nation, ushering in a period of extreme heat to the remote areas.
Agencies have declared burning restrictions for concern about forest fires.