Severe gales reaching velocities of as high as 155km/h (96mph) have caused nearly 90,000 households lacking electricity and forced authorities to halt more than 100 air travel services, according to domestic outlets.
The gales are impacting the complete South Island and lower areas of the northern region, per the weather forecasting body.
New Zealand authorities have released infrequent red wind warnings - the top caution category - in key areas such as Wellington and Canterbury.
Residents have been urged to stay indoors, refrain from journeys, and prepare for more electricity and network failures.
Extensive Impact and Crisis Response
The electricity loss seems to be impacting residences mostly in the southern region, though authorities state that power was being slowly brought back.
Local media have reported that in various locations roofs have been ripped off houses, while trees and electricity poles have been knocked down by the gusts.
In Wellington, a person was fatally injured after being struck by a falling limb at a frequent walking route on Tuesday.
Meanwhile in Wellington, a individual was pushed toward moving cars on a street by a powerful blast, in a moment that was recorded in a viral dashcam video.
Flights to and from the urban area have been halted as a result of the gusts, whereas some roads and libraries are also closed.
At the same time authorities in Canterbury have declared a state of emergency, to assist disaster response efforts.
Strike Action Alongside 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", calling for improved salaries and workplace environments.
However the intense climate has pressured them to alter some of their plans, with various open-air gatherings relocated inside or called off.
Similar gusts are affecting the nearby nation, causing a high-temperature event to the nation's interior regions.
Authorities have announced burning restrictions for fear of bushfires.