Intense gales hitting velocities of up to 155km/h (96mph) have resulted in around 90,000 properties experiencing outages and compelled agencies to halt more than 100 air travel services, according to regional news sources.
These gusts are impacting the entire South Island and southern sections of the northern region, as stated by the weather forecasting body.
New Zealand authorities have announced rare red wind warnings - the highest alert level - in central regions encompassing these major districts.
People have been encouraged to avoid going outside, avoid travel, and get ready for more electricity and network failures.
Extensive Damage and Crisis Response
This outage seems to be impacting households mainly in the South Island, though officials say that the electricity supply was being slowly brought back.
Local media have reported that in various locations structures have suffered roof damage, while trees and electricity poles have been toppled by the gales.
In Wellington, a man was lost his life after being hit by a wooden fragment at a popular trail walking spot on Tuesday.
Also in the capital, a woman was blown onto oncoming traffic on a thoroughfare by a intensive burst, in a moment that was recorded in a viral dashcam video.
Aircraft services in and out of the urban area have been suspended as a result of the gusts, whereas some roads and libraries are not operating.
Simultaneously Canterbury officials have announced a state of emergency, to support recovery activities.
Work Stoppages During Severe Weather
The powerful gales on Thursday occur while many of teachers, doctors and other public workers are engaged in what has been termed a "mega strike", demanding improved salaries and workplace environments.
Yet the severe conditions has forced them to alter some of their plans, with some outdoor rallies shifted to interior venues or called off.
Similar gusts are affecting the neighboring country, ushering in a high-temperature event to the country's outback.
Officials have issued flame prohibitions for concern about bushfires.