Severe winds reaching speeds of approximately 155km/h (96mph) have resulted in around 90,000 homes experiencing outages and led agencies to halt in excess of 100 flights, based on local media.
The winds are affecting the entire South Island and southern sections of the North Island, according to the national weather agency.
New Zealand authorities have issued uncommon high-level wind alerts - the most severe warning - in key areas including Canterbury and Wellington.
Locals have been advised to remain inside, avoid travel, and get ready for further power and communication outages.
Broad Destruction and Crisis Measures
The power cut appears to be affecting homes mainly in the southern region, although officials state that the electricity supply was being restored progressively.
Domestic outlets have reported that in various locations structures have suffered roof damage, while power lines and trees have been toppled by the gales.
In Wellington, a man was fatally injured after being struck by a wooden fragment at a popular trail walking spot on Tuesday.
Also in the capital, a individual was blown onto approaching vehicles on a thoroughfare by a strong gust of wind, in a event that was captured in a viral dashcam video.
Aircraft services in and out of the metropolis have been suspended because of the winds, whereas certain highways and community centers are also closed.
Simultaneously Canterbury officials have issued a emergency situation, to facilitate emergency management operations.
Labor Protests During Extreme Conditions
The wild winds on today occur while numerous of teachers, doctors and other public workers are engaged in what has been termed a "significant labor action", demanding improved salaries and workplace environments.
However the severe conditions has forced them to modify certain arrangements, with various open-air gatherings relocated inside or cancelled.
Similar gusts are affecting the neighboring country, causing a period of extreme heat to the country's outback.
Authorities have announced fire bans for concern about forest fires.
