Intense gales attaining speeds of approximately 155km/h (96mph) have caused nearly 90,000 households without power and forced authorities to cancel more than 100 flights, as reported by regional news sources.
The winds are influencing the complete southern region and southern parts of the North Island, according to the weather forecasting body.
The nation's agencies have announced uncommon high-level wind alerts - the top caution category - in core zones including these major districts.
Residents have been urged to stay indoors, refrain from journeys, and prepare for more utility disruptions.
Widespread Destruction and Emergency Response
The electricity loss seems to be impacting homes predominantly in the South Island, while authorities state that the electricity supply was being slowly brought back.
Regional news have indicated that in certain areas roofs have been ripped off houses, and trees and electricity poles have been brought down by the gusts.
Across Wellington, a man was killed after being impacted by a tree branch at a frequent walking route on earlier this week.
Also in the capital, a individual was blown onto approaching vehicles on a road by a intensive burst, in a event that was recorded in a widely shared car camera footage.
Flights entering and leaving the urban area have been suspended because of the gusts, while various routes and public facilities are also closed.
Simultaneously Canterbury officials have declared a crisis declaration, to assist disaster response efforts.
Work Stoppages Alongside Harsh Conditions
The wild winds on Thursday coincide with many of school staff, physicians and civil servants take part in what has been termed a "mega strike", calling for better pay and working conditions.
Yet the severe conditions has compelled them to change some of their plans, with some outdoor rallies moved indoors or called off.
Similar gusts are affecting the nearby nation, ushering in a period of extreme heat to the nation's interior regions.
Officials have announced flame prohibitions for apprehension regarding bushfires.
