Powerful winds hitting speeds of up to 155km/h (96mph) have left around 90,000 properties without power and led authorities to cancel over 100 aircraft departures, according to local media.
The gales are influencing the complete South Island and southern parts of the North Island, according to the country's meteorological service.
The nation's agencies have announced uncommon high-level wind alerts - the top caution category - in key areas encompassing these major districts.
People have been encouraged to avoid going outside, refrain from journeys, and make arrangements for further power and communication outages.
Extensive Impact and Crisis Measures
This outage appears to be affecting households mostly in the South Island, while officials report that the electricity supply was being gradually reinstated.
Domestic outlets have stated that in some places homes have lost their roofs, whereas trees and electricity poles have been knocked down by the winds.
In Wellington, a individual was fatally injured after being hit by a falling limb at a frequent walking route on Tuesday.
Additionally in the city, a woman was blown onto moving cars on a thoroughfare by a intensive burst, in a moment that was captured in a popular vehicle recording.
Flights to and from the city have been halted as a result of the gusts, whereas certain highways and community centers are shut down.
At the same time local leaders have announced a state of emergency, to facilitate emergency management operations.
Labor Protests Alongside Severe Conditions
The wild winds on Thursday come as tens of thousands of school staff, physicians and civil servants take part in what has been described as a "significant labor action", demanding higher wages and enhanced employment terms.
But the intense climate has compelled them to alter various scheduled activities, with several external protests shifted to interior venues or called off.
Similar gusts are also sweeping the nearby nation, ushering in a period of extreme heat to the remote areas.
Authorities have announced flame prohibitions for fear of bushfires.
