Severe gales reaching velocities of up to 155km/h (96mph) have resulted in nearly 90,000 homes experiencing outages and forced authorities to cancel over 100 flights, as reported by domestic outlets.
The gales are influencing the entire southern region and southern sections of the North Island, according to the national weather agency.
The nation's agencies have released infrequent high-level wind alerts - the most severe warning - in core zones including these major districts.
Residents have been encouraged to remain inside, refrain from journeys, and prepare for additional utility disruptions.
Widespread Impact and Crisis Measures
The power cut is primarily influencing households mostly in the South Island, while agencies report that power was being gradually reinstated.
Local media have indicated that in various locations structures have suffered roof damage, while power lines and trees have been toppled by the gusts.
In Wellington, a man was killed after being hit by a tree branch at a frequent walking route on earlier this week.
Also in the capital, a woman was blown onto oncoming traffic on a street by a intensive burst, in a incident that was filmed in a popular vehicle recording.
Flights in and out of the urban area have been suspended as a result of the winds, whereas certain highways and community centers are shut down.
At the same time Canterbury officials have announced a crisis declaration, to assist emergency management operations.
Work Stoppages During Harsh Conditions
These intense gusts on this day come as many of school staff, physicians and civil servants take part in what has been called a "mega strike", demanding better pay and working conditions.
But the intense climate has compelled them to modify some of their plans, with various open-air gatherings shifted to interior venues or called off.
Similar gusts are also sweeping Australia, ushering in a high-temperature event to the country's outback.
Agencies have issued flame prohibitions for concern about bushfires.
