Intense gales hitting velocities of as high as 155km/h (96mph) have resulted in nearly 90,000 properties experiencing outages and led officials to halt more than 100 air travel services, based on domestic outlets.
The winds are influencing the whole South Island and lower areas of the North Island, per the country's meteorological service.
New Zealand authorities have issued infrequent high-level wind alerts - the highest alert level - in key areas such as these major districts.
People have been advised to stay indoors, avoid travel, and make arrangements for further power and communication outages.
Widespread Destruction and Crisis Measures
The power cut appears to be affecting residences mostly in the South Island, though officials say that power was being restored progressively.
Regional news have reported that in some places structures have suffered roof damage, whereas power lines and trees have been brought down by the winds.
Across Wellington, a man was lost his life after being struck by a wooden fragment at a popular trail walking spot on Tuesday.
Additionally in the city, a individual was swept into approaching vehicles on a thoroughfare by a powerful blast, in a moment that was filmed in a popular vehicle recording.
Flights entering and leaving the metropolis have been cancelled as a result of the weather, and various routes and public facilities are also closed.
Meanwhile Canterbury officials have issued a crisis declaration, to assist disaster response efforts.
Strike Action Amid Extreme Conditions
The powerful gales on today come as tens of thousands of school staff, physicians and civil servants take part in what has been called a "mega strike", requesting higher wages and enhanced employment terms.
However the intense climate has forced them to alter some of their plans, with various open-air gatherings moved indoors or called off.
Like conditions are affecting the neighboring country, causing a high-temperature event to the remote areas.
Authorities have declared burning restrictions for fear of forest fires.
