Severe gusts attaining speeds of as high as 155km/h (96mph) have caused approximately 90,000 homes lacking electricity and led officials to cancel over 100 flights, according to domestic outlets.
The gales are influencing the whole South Island and southern parts of the North Island, according to the national weather agency.
Officials in New Zealand have announced uncommon red wind warnings - the most severe warning - in core zones such as Canterbury and Wellington.
Locals have been encouraged to remain inside, refrain from journeys, and prepare for more power and communication outages.
Extensive Damage and Crisis Measures
The power cut appears to be affecting homes mainly in the southern region, while authorities state that the electricity supply was being restored progressively.
Domestic outlets have indicated that in various locations structures have suffered roof damage, whereas trees and electricity poles have been brought down by the gusts.
Across Wellington, a person was killed after being hit by a wooden fragment at a well-known hiking path on earlier this week.
Additionally in the city, a individual was pushed toward approaching vehicles on a road by a intensive burst, in a incident that was recorded in a popular vehicle recording.
Air travel entering and leaving the urban area have been halted because of the gusts, while some roads and libraries are shut down.
Simultaneously Canterbury officials have announced a emergency situation, to assist disaster response efforts.
Strike Action Alongside Harsh Conditions
The powerful gales on today come as tens of thousands of educators, medical professionals and government employees are participating in what has been described as a "significant labor action", calling for higher wages and enhanced employment terms.
However the intense climate has compelled them to modify various scheduled activities, with some outdoor rallies relocated inside or called off.
Comparable winds are affecting Australia, causing a high-temperature event to the country's outback.
Agencies have announced flame prohibitions for apprehension regarding wildfires.