Intense gusts hitting speeds of approximately 155km/h (96mph) have caused nearly 90,000 households without power and compelled agencies to call off more than 100 aircraft departures, according to domestic outlets.
The winds are impacting the entire South Island and lower areas of the North Island, per the country's meteorological service.
The nation's agencies have announced rare red wind warnings - the highest alert level - in key areas such as Wellington and Canterbury.
Residents have been advised to avoid going outside, stay off roads, and prepare for further electricity and network failures.
Extensive Impact and Emergency Response
This outage is primarily influencing homes mainly in the South Island, though authorities state that energy was being slowly brought back.
Domestic outlets have indicated that in certain areas homes have lost their roofs, while power lines and trees have been brought down by the winds.
In Wellington, a individual was lost his life after being struck by a wooden fragment at a frequent walking route on earlier this week.
Meanwhile in Wellington, a individual was pushed toward approaching vehicles on a road by a powerful blast, in a incident that was recorded in a popular vehicle recording.
Aircraft services to and from the urban area have been cancelled due to the gusts, and various routes and public facilities are shut down.
Simultaneously Canterbury officials have declared a emergency situation, to support emergency management operations.
Strike Action Alongside Harsh Weather
The wild winds on this day occur while numerous of educators, medical professionals and government employees are engaged in what has been termed a "significant labor action", demanding higher wages and enhanced employment terms.
But the extreme weather has pressured them to alter various scheduled activities, with various open-air gatherings relocated inside or cancelled.
Like conditions are impacting Australia, causing a high-temperature event to the country's outback.
Authorities have declared flame prohibitions for concern about forest fires.