Intense gusts reaching speeds of up to 155km/h (96mph) have caused around 90,000 properties without power and forced agencies to halt more than 100 flights, as reported by domestic outlets.
The gales are impacting the complete southern region and lower areas of the northern region, according to the weather forecasting body.
New Zealand authorities have issued uncommon high-level wind alerts - the top caution category - in key areas including these major districts.
Locals have been advised to stay indoors, refrain from journeys, and prepare for additional utility disruptions.
Extensive Destruction and Emergency Measures
The electricity loss is primarily influencing homes mostly in the southern region, while officials state that the electricity supply was being restored progressively.
Regional news have indicated that in various locations homes have lost their roofs, while trees and electricity poles have been knocked down by the winds.
Within the capital, a person was fatally injured after being struck by a wooden fragment at a frequent walking route on Tuesday.
Also in the capital, a woman was swept into moving cars on a thoroughfare by a strong gust of wind, in a event that was filmed in a viral dashcam video.
Flights in and out of the city have been cancelled because of the gusts, while certain highways and community centers are not operating.
Meanwhile local leaders have issued a state of emergency, to support recovery activities.
Labor Protests Amid Extreme Weather
The wild winds on this day come as many of school staff, physicians and civil servants take part in what has been called a "mega strike", demanding improved salaries and workplace environments.
But the extreme weather has forced them to modify certain arrangements, with some outdoor rallies shifted to interior venues or abandoned.
Like conditions are impacting the nearby nation, ushering in a high-temperature event to the nation's interior regions.
Agencies have issued flame prohibitions for concern about bushfires.
