Intense winds hitting speeds of up to 155km/h (96mph) have resulted in nearly 90,000 properties without power and compelled authorities to call off more than 100 flights, as reported by local media.
The winds are influencing the entire southern region and southern parts of the North Island, according to the weather forecasting body.
Officials in New Zealand have announced rare red wind warnings - the most severe warning - in key areas such as Canterbury and Wellington.
Locals have been urged to stay indoors, avoid travel, and prepare for further utility disruptions.
Extensive Destruction and Emergency Measures
The power cut seems to be impacting households predominantly in the South Island, while authorities report that the electricity supply was being slowly brought back.
Local media have reported that in certain areas roofs have been ripped off houses, whereas trees and electricity poles have been knocked down by the gales.
Across Wellington, a person was fatally injured after being struck by a tree branch at a popular trail walking spot on earlier this week.
Additionally in the city, a woman was blown onto approaching vehicles on a street by a powerful blast, in a event that was captured in a popular vehicle recording.
Air travel to and from the urban area have been suspended because of the gusts, whereas various routes and public facilities are not operating.
Meanwhile Canterbury officials have issued a state of emergency, to assist recovery activities.
Strike Action Amid Severe Weather
These intense gusts on today come as tens of thousands of educators, medical professionals and government employees are engaged in what has been described as a "major walkout", requesting higher wages and enhanced employment terms.
Yet the extreme weather has pressured them to alter some of their plans, with several external protests relocated inside or called off.
Like conditions are also sweeping Australia, bringing a high-temperature event to the remote areas.
Authorities have declared fire bans for apprehension regarding bushfires.
