Intense gales hitting velocities of as high as 155km/h (96mph) have resulted in nearly 90,000 properties without power and led agencies to cancel over 100 flights, based on local media.
The gales are impacting the complete South Island and lower areas of the northern region, according to the national weather agency.
New Zealand authorities have released infrequent high-level wind alerts - the highest alert level - in core zones encompassing Canterbury and Wellington.
Locals have been encouraged to avoid going outside, avoid travel, and get ready for more power and communication outages.
Broad Impact and Crisis Response
This outage is primarily influencing households mainly in the South Island, though authorities state that the electricity supply was being slowly brought back.
Domestic outlets have indicated that in certain areas homes have lost their roofs, whereas trees and electricity poles have been knocked down by the gales.
Across Wellington, a man was killed after being impacted by a falling limb at a well-known hiking path on Tuesday.
Also in the capital, a woman was swept into moving cars on a thoroughfare by a intensive burst, in a event that was recorded in a popular vehicle recording.
Air travel in and out of the metropolis have been suspended because of the weather, while certain highways and community centers are shut down.
Meanwhile Canterbury officials have announced a emergency situation, to support emergency management operations.
Labor Protests Amid Extreme Conditions
The powerful gales on this day coincide with numerous of school staff, physicians and civil servants are participating in what has been described as a "mega strike", demanding better pay and working conditions.
However the intense climate has pressured them to change certain arrangements, with various open-air gatherings moved indoors or cancelled.
Comparable winds are impacting Australia, causing a high-temperature event to the nation's interior regions.
Officials have issued burning restrictions for apprehension regarding forest fires.
