Intense gales reaching velocities of as high as 155km/h (96mph) have left around 90,000 properties experiencing outages and led authorities to call off in excess of 100 flights, according to domestic outlets.
The gales are influencing the whole South Island and southern parts of the northern region, according to the country's meteorological service.
New Zealand authorities have released rare red wind warnings - the highest alert level - in central regions encompassing these major districts.
People have been advised to stay indoors, refrain from journeys, and prepare for more power and communication outages.
Extensive Destruction and Emergency Response
The power cut is primarily influencing households predominantly in the southern region, while officials state that power was being restored progressively.
Local media have indicated that in various locations roofs have been ripped off houses, whereas trees and electricity poles have been knocked down by the gusts.
In Wellington, a person was fatally injured after being struck by a tree branch at a well-known hiking path on Tuesday.
Additionally in the city, a woman was blown onto moving cars on a thoroughfare by a intensive burst, in a incident that was captured in a widely shared car camera footage.
Flights to and from the urban area have been halted as a result of the weather, while certain highways and community centers are also closed.
Meanwhile authorities in Canterbury have announced a emergency situation, to support emergency management operations.
Strike Action Amid Severe Weather
These intense gusts on this day occur while tens of thousands of teachers, doctors and other public workers are participating in what has been termed a "mega strike", demanding higher wages and enhanced employment terms.
However the extreme weather has compelled them to modify various scheduled activities, with some outdoor rallies shifted to interior venues or called off.
Like conditions are also sweeping the neighboring country, bringing a period of extreme heat to the country's outback.
Officials have declared fire bans for concern about bushfires.
