Powerful gusts hitting velocities of approximately 155km/h (96mph) have left nearly 90,000 households experiencing outages and compelled authorities to call off more than 100 air travel services, based on domestic outlets.
The winds are impacting the entire South Island and southern parts of the North Island, according to the national weather agency.
The nation's agencies have announced uncommon red wind warnings - the highest alert level - in key areas such as these major districts.
Residents have been urged to remain inside, avoid travel, and prepare for additional electricity and network failures.
Broad Destruction and Emergency Response
The electricity loss is primarily influencing households mainly in the southern region, although authorities state that the electricity supply was being gradually reinstated.
Domestic outlets have stated that in certain areas roofs have been ripped off houses, and utility poles and vegetation have been toppled by the gusts.
In Wellington, a man was killed after being struck by a tree branch at a popular trail walking spot on earlier this week.
Meanwhile in Wellington, a woman was blown onto oncoming traffic on a street by a powerful blast, in a incident that was recorded in a viral dashcam video.
Aircraft services to and from the urban area have been cancelled due to the weather, while certain highways and community centers are shut down.
At the same time Canterbury officials have issued a state of emergency, to assist disaster response efforts.
Strike Action Amid Extreme Conditions
The wild winds on this day come as many of educators, medical professionals and government employees take part in what has been called a "mega strike", demanding better pay and working conditions.
But the intense climate has pressured them to change certain arrangements, with some outdoor rallies relocated inside or cancelled.
Similar gusts are also sweeping Australia, ushering in a period of extreme heat to the country's outback.
Officials have issued fire bans for concern about forest fires.
