Intense gusts reaching speeds of approximately 155km/h (96mph) have resulted in approximately 90,000 homes lacking electricity and forced authorities to halt more than 100 flights, as reported by regional news sources.
The winds are affecting the entire South Island and southern parts of the northern region, as stated by the country's meteorological service.
New Zealand authorities have released uncommon red wind warnings - the most severe warning - in core zones such as these major districts.
Locals have been urged to remain inside, stay off roads, and get ready for further power and communication outages.
Widespread Destruction and Emergency Measures
The electricity loss seems to be impacting households mainly in the South Island, though agencies report that power was being restored progressively.
Domestic outlets have stated that in some places structures have suffered roof damage, while utility poles and vegetation have been knocked down by the gales.
In Wellington, a man was killed after being struck by a falling limb at a frequent walking route on Tuesday.
Additionally in the city, a woman was blown onto oncoming traffic on a street by a powerful blast, in a moment that was recorded in a viral dashcam video.
Aircraft services to and from the metropolis have been cancelled as a result of the winds, and various routes and public facilities are shut down.
At the same time Canterbury officials have issued a state of emergency, to assist disaster response efforts.
Strike Action Amid Severe Conditions
The wild winds on Thursday come as tens of thousands of teachers, doctors and other public workers are participating in what has been termed a "significant labor action", demanding higher wages and enhanced employment terms.
However the extreme weather has pressured them to alter various scheduled activities, with various open-air gatherings moved indoors or cancelled.
Similar gusts are affecting the nearby nation, causing a period of extreme heat to the country's outback.
Authorities have declared fire bans for concern about forest fires.
