Severe winds attaining speeds of as high as 155km/h (96mph) have caused nearly 90,000 households without power and forced authorities to call off in excess of 100 aircraft departures, according to local media.
These gusts are affecting the complete South Island and southern sections of the North Island, according to the weather forecasting body.
Officials in New Zealand have announced infrequent red wind warnings - the most severe warning - in core zones such as Wellington and Canterbury.
People have been urged to remain inside, avoid travel, and prepare for further utility disruptions.
Widespread Destruction and Crisis Measures
This outage is primarily influencing households mostly in the southern region, while authorities report that the electricity supply was being gradually reinstated.
Regional news have reported that in certain areas homes have lost their roofs, while trees and electricity poles have been brought down by the gusts.
Across Wellington, a person was lost his life after being struck by a falling limb at a popular trail walking spot on Tuesday.
Additionally in the city, a female was blown onto oncoming traffic on a road by a intensive burst, in a incident that was recorded in a widely shared car camera footage.
Aircraft services entering and leaving the city have been cancelled as a result of the winds, while various routes and public facilities are not operating.
Meanwhile Canterbury officials have issued a crisis declaration, to facilitate recovery activities.
Labor Protests During Severe Conditions
The powerful gales on Thursday come as tens of thousands of school staff, physicians and civil servants are participating in what has been termed a "major walkout", demanding improved salaries and workplace environments.
But the intense climate has forced them to change certain arrangements, with several external protests relocated inside or called off.
Like conditions are affecting the nearby nation, causing a period of extreme heat to the country's outback.
Agencies have declared burning restrictions for fear of forest fires.
