Intense gales attaining speeds of up to 155km/h (96mph) have resulted in nearly 90,000 homes lacking electricity and compelled authorities to halt over 100 flights, according to local media.
The winds are impacting the whole South Island and southern parts of the North Island, according to the country's meteorological service.
New Zealand authorities have issued uncommon severe gust advisories - the highest alert level - in central regions such as Wellington and Canterbury.
Locals have been encouraged to stay indoors, refrain from journeys, and get ready for further utility disruptions.
Extensive Impact and Emergency Response
The electricity loss seems to be impacting residences mainly in the southern region, although officials state that power was being restored progressively.
Domestic outlets have stated that in various locations homes have lost their roofs, whereas power lines and trees have been knocked down by the gales.
Across Wellington, a man was lost his life after being struck by a tree branch at a frequent walking route on earlier this week.
Additionally in the city, a woman was swept into approaching vehicles on a road by a intensive burst, in a event that was filmed in a widely shared car camera footage.
Air travel to and from the metropolis have been suspended because of the winds, while some roads and libraries are also closed.
Meanwhile authorities in Canterbury have declared a state of emergency, to facilitate recovery activities.
Work Stoppages Alongside Severe Conditions
These intense gusts on this day occur while numerous of educators, medical professionals and government employees are engaged in what has been described as a "mega strike", calling for higher wages and enhanced employment terms.
Yet the extreme weather has compelled them to change various scheduled activities, with some outdoor rallies relocated inside or cancelled.
Comparable winds are affecting Australia, causing a period of extreme heat to the country's outback.
Officials have issued fire bans for fear of bushfires.