Powerful gusts reaching speeds of as high as 155km/h (96mph) have caused nearly 90,000 households lacking electricity and compelled agencies to halt more than 100 flights, based on regional news sources.
The winds are impacting the whole southern region and lower areas of the North Island, according to the national weather agency.
The nation's agencies have released rare high-level wind alerts - the highest alert level - in core zones including these major districts.
People have been encouraged to remain inside, stay off roads, and make arrangements for more electricity and network failures.
Broad Destruction and Crisis Response
The power cut seems to be impacting residences mainly in the southern region, though agencies say that energy was being gradually reinstated.
Domestic outlets have stated that in some places roofs have been ripped off houses, while trees and electricity poles have been knocked down by the gusts.
Within the capital, a man was killed after being hit by a tree branch at a popular trail walking spot on Tuesday.
Meanwhile in Wellington, a individual was blown onto approaching vehicles on a road by a strong gust of wind, in a moment that was filmed in a popular vehicle recording.
Air travel entering and leaving the city have been halted due to the weather, and various routes and public facilities are not operating.
Simultaneously authorities in Canterbury have issued a state of emergency, to support recovery activities.
Strike Action Amid Severe Weather
These intense gusts on Thursday occur while tens of thousands of school staff, physicians and civil servants are participating 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 some outdoor rallies moved indoors or abandoned.
Similar gusts are also sweeping the neighboring country, causing a high-temperature event to the country's outback.
Authorities have issued flame prohibitions for apprehension regarding forest fires.
