Powerful gales reaching velocities of up to 155km/h (96mph) have caused around 90,000 properties lacking electricity and led officials to cancel more than 100 air travel services, as reported by regional news sources.
The gales are influencing the entire South Island and lower areas of the North Island, according to the weather forecasting body.
The nation's agencies have released uncommon red wind warnings - the highest alert level - in central regions such as these major districts.
People have been encouraged to stay indoors, refrain from journeys, and make arrangements for further utility disruptions.
Widespread Impact and Emergency Response
This outage is primarily influencing residences predominantly in the southern region, although agencies say that energy was being gradually reinstated.
Domestic outlets have stated that in various locations structures have suffered roof damage, while trees and electricity poles have been knocked down by the winds.
Across Wellington, a individual was killed after being struck by a wooden fragment at a frequent walking route on Tuesday.
Additionally in the city, a woman was blown onto approaching vehicles on a road by a strong gust of wind, in a event that was captured in a viral dashcam video.
Aircraft services in and out of the urban area have been cancelled because of the winds, whereas some roads and libraries are not operating.
Meanwhile authorities in Canterbury have announced a emergency situation, to assist emergency management operations.
Work Stoppages Amid Severe Conditions
The powerful gales on this day occur while many of teachers, doctors and other public workers take part in what has been termed a "major walkout", demanding improved salaries and workplace environments.
But the severe conditions has pressured them to modify some of their plans, with several external protests moved indoors or cancelled.
Similar gusts are also sweeping the neighboring country, causing a heatwave to the remote areas.
Authorities have issued flame prohibitions for concern about bushfires.