Intense gusts reaching velocities of up to 155km/h (96mph) have left approximately 90,000 households without power and forced agencies to halt more than 100 aircraft departures, based on local media.
The gales are influencing the whole South Island and southern parts of the northern region, per the country's meteorological service.
Officials in New Zealand have released uncommon high-level wind alerts - the highest alert level - in key areas encompassing Canterbury and Wellington.
Residents have been advised to remain inside, stay off roads, and prepare for further electricity and network failures.
Widespread Destruction and Emergency Measures
The power cut seems to be impacting homes mostly in the southern region, while agencies report that the electricity supply was being restored progressively.
Domestic outlets have indicated that in certain areas roofs have been ripped off houses, whereas trees and electricity poles have been brought down by the gusts.
Across Wellington, a person was fatally injured after being struck by a falling limb at a popular trail walking spot on Tuesday.
Additionally in the city, a individual was pushed toward approaching vehicles on a road by a intensive burst, in a moment that was recorded in a viral dashcam video.
Aircraft services entering and leaving the metropolis have been cancelled because of the winds, whereas some roads and libraries are also closed.
Meanwhile authorities in Canterbury have declared a state of emergency, to facilitate disaster response efforts.
Work Stoppages During Harsh Conditions
The powerful gales on today coincide with tens of thousands of teachers, doctors and other public workers are engaged in what has been called a "major walkout", demanding better pay and working conditions.
Yet the extreme weather has pressured them to alter various scheduled activities, with some outdoor rallies shifted to interior venues or abandoned.
Similar gusts are affecting the nearby nation, ushering in a high-temperature event to the remote areas.
Officials have declared burning restrictions for fear of forest fires.
