Powerful winds reaching speeds of approximately 155km/h (96mph) have caused nearly 90,000 properties experiencing outages and forced authorities to halt more than 100 aircraft departures, according to regional news sources.
The winds are influencing the entire South Island and lower areas 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 central regions such as Wellington and Canterbury.
Locals have been advised to remain inside, avoid travel, and prepare for further electricity and network failures.
Widespread Destruction and Crisis Measures
This outage seems to be impacting households predominantly in the South Island, although agencies say that the electricity supply was being gradually reinstated.
Regional news have stated that in certain areas structures have suffered roof damage, and trees and electricity poles have been knocked down by the winds.
Within the capital, a man was fatally injured after being hit by a falling limb at a frequent walking route on earlier this week.
Meanwhile in Wellington, a female was swept into moving cars on a road by a powerful blast, in a moment that was captured in a popular vehicle recording.
Air travel entering and leaving the metropolis have been suspended because of the gusts, whereas various routes and public facilities are not operating.
Meanwhile Canterbury officials have announced a crisis declaration, to facilitate emergency management operations.
Labor Protests Amid Harsh Conditions
These intense gusts on Thursday coincide with many of school staff, physicians and civil servants are engaged in what has been called a "mega strike", calling for better pay and working conditions.
Yet the severe conditions has forced them to modify certain arrangements, with several external protests relocated inside or cancelled.
Like conditions are also sweeping the nearby nation, causing a heatwave to the country's outback.
Authorities have announced burning restrictions for concern about forest fires.
