Severe gales hitting velocities of approximately 155km/h (96mph) have resulted in around 90,000 homes lacking electricity and compelled agencies to cancel more than 100 flights, according to local media.
The winds are impacting the entire South Island and southern parts of the northern region, according to the weather forecasting body.
The nation's agencies have released uncommon high-level wind alerts - the most severe warning - in central regions encompassing these major districts.
Locals have been urged to avoid going outside, stay off roads, and make arrangements for more electricity and network failures.
Widespread Destruction and Emergency Measures
The power cut appears to be affecting households mainly in the southern region, while agencies report that power was being slowly brought back.
Local media have indicated that in some places structures have suffered roof damage, whereas trees and electricity poles have been knocked down by the gusts.
Across Wellington, a person was fatally injured after being struck by a wooden fragment at a frequent walking route on earlier this week.
Meanwhile in Wellington, a individual was swept into moving cars on a thoroughfare by a intensive burst, in a event that was recorded in a widely shared car camera footage.
Flights entering and leaving the metropolis have been cancelled because of the gusts, and various routes and public facilities are not operating.
Meanwhile local leaders have announced a state of emergency, to facilitate recovery activities.
Work Stoppages During Extreme Weather
These intense gusts on today coincide with many of school staff, physicians and civil servants are engaged in what has been termed a "significant labor action", calling for better pay and working conditions.
However the extreme weather has pressured them to change some of their plans, with various open-air gatherings shifted to interior venues or cancelled.
Like conditions are impacting the neighboring country, ushering in a high-temperature event to the nation's interior regions.
Agencies have declared fire bans for concern about bushfires.
