Intense gales hitting speeds of up to 155km/h (96mph) have left approximately 90,000 properties lacking electricity and compelled agencies to cancel more than 100 air travel services, according to local media.
The gales are affecting the complete South Island and southern parts of the northern region, per the country's meteorological service.
The nation's agencies have released uncommon red wind warnings - the most severe warning - in key areas such as Canterbury and Wellington.
People have been urged to remain inside, stay off roads, and make arrangements for additional power and communication outages.
Extensive Destruction and Emergency Response
The electricity loss seems to be impacting homes mainly in the South Island, although agencies report that power was being restored progressively.
Domestic outlets have reported that in some places homes have lost their roofs, while utility poles and vegetation have been brought down by the gusts.
Across Wellington, a man was lost his life after being impacted by a falling limb at a popular trail walking spot on Tuesday.
Meanwhile in Wellington, a woman was blown onto moving cars on a street by a strong gust of wind, in a event that was captured in a popular vehicle recording.
Aircraft services in and out of the urban area have been halted because of the weather, while various routes and public facilities are shut down.
Simultaneously authorities in Canterbury have announced a state of emergency, to facilitate emergency management operations.
Work Stoppages During Extreme Conditions
These intense gusts on Thursday come as many of educators, medical professionals and government employees are participating in what has been called a "significant labor action", demanding improved salaries and workplace environments.
But the extreme weather has compelled them to alter various scheduled activities, with some outdoor rallies relocated inside or cancelled.
Similar gusts are affecting the nearby nation, bringing a period of extreme heat to the remote areas.
Authorities have issued burning restrictions for fear of wildfires.
