Powerful winds attaining velocities of as high as 155km/h (96mph) have caused approximately 90,000 properties without power and compelled agencies to call off more than 100 flights, based on local media.
The winds are impacting 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 highest alert level - in key areas encompassing these major districts.
Residents have been encouraged to stay indoors, refrain from journeys, and prepare for additional power and communication outages.
Extensive Impact and Crisis Measures
The power cut seems to be impacting homes mainly in the southern region, although officials state that energy was being slowly brought back.
Regional news have indicated that in certain areas homes have lost their roofs, whereas power lines and trees have been toppled by the gusts.
Across Wellington, a man was fatally injured after being hit by a wooden fragment at a frequent walking route on earlier this week.
Also in the capital, a woman was pushed toward moving cars on a thoroughfare by a intensive burst, in a moment that was recorded in a viral dashcam video.
Air travel entering and leaving the urban area have been suspended because of the gusts, while certain highways and community centers are also closed.
At the same time local leaders have declared a crisis declaration, to facilitate emergency management operations.
Strike Action During Harsh Weather
These intense gusts on this day coincide with many of school staff, physicians and civil servants take part in what has been termed a "major walkout", requesting improved salaries and workplace environments.
However the severe conditions has forced them to modify some of their plans, with various open-air gatherings moved indoors or cancelled.
Similar gusts are affecting Australia, bringing a period of extreme heat to the country's outback.
Officials have issued flame prohibitions for fear of forest fires.