Intense winds reaching velocities of as high as 155km/h (96mph) have left around 90,000 properties without power and compelled authorities to halt in excess of 100 aircraft departures, according to regional news sources.
The winds are influencing the whole South Island and lower areas of the northern region, according to the weather forecasting body.
New Zealand authorities have issued infrequent severe gust advisories - the highest alert level - in central regions including Wellington and Canterbury.
Locals have been urged to remain inside, avoid travel, and make arrangements for further electricity and network failures.
Widespread Damage and Emergency Measures
This outage appears to be affecting homes predominantly in the southern region, although officials state that energy was being slowly brought back.
Domestic outlets have indicated that in some places structures have suffered roof damage, and trees and electricity poles have been toppled by the winds.
Within the capital, a man was fatally injured after being struck by a falling limb at a frequent walking route on Tuesday.
Also in the capital, a individual was blown onto approaching vehicles on a road by a powerful blast, in a incident that was recorded in a widely shared car camera footage.
Aircraft services in and out of the metropolis have been halted due to the gusts, and certain highways and community centers are not operating.
At the same time authorities in Canterbury have announced a state of emergency, to facilitate recovery activities.
Work Stoppages Amid Extreme Weather
The powerful gales on today occur while numerous of teachers, doctors and other public workers are engaged in what has been called a "mega strike", calling for improved salaries and workplace environments.
However the severe conditions has pressured them to alter some of their plans, with some outdoor rallies shifted to interior venues or abandoned.
Similar gusts are also sweeping the nearby nation, causing a heatwave to the remote areas.
Officials have declared burning restrictions for fear of wildfires.
