Intense gales hitting velocities of approximately 155km/h (96mph) have resulted in approximately 90,000 homes without power and led authorities to halt more than 100 flights, based on domestic outlets.
The gales are affecting the whole South Island and southern sections of the northern region, per the national weather agency.
New Zealand authorities have issued infrequent severe gust advisories - the highest alert level - in key areas including these major districts.
Locals have been encouraged to stay indoors, refrain from journeys, and make arrangements for more electricity and network failures.
Extensive Destruction and Emergency Measures
The power cut seems to be impacting residences predominantly in the southern region, while agencies say that the electricity supply was being gradually reinstated.
Domestic outlets have stated that in various locations homes have lost their roofs, and utility poles and vegetation have been brought down by the gales.
Within the capital, a man was lost his life after being struck by a falling limb at a popular trail walking spot on Tuesday.
Also in the capital, a female was swept into oncoming traffic on a road by a strong gust of wind, in a moment that was filmed in a viral dashcam video.
Flights in and out of the urban area have been halted due to the winds, while some roads and libraries are also closed.
Meanwhile authorities in Canterbury have declared a state of emergency, to support recovery activities.
Labor Protests During Extreme Weather
The wild winds on Thursday coincide with numerous of teachers, doctors and other public workers are participating in what has been called a "major walkout", requesting better pay and working conditions.
However the severe conditions has pressured them to alter certain arrangements, with some outdoor rallies moved indoors or cancelled.
Similar gusts are also sweeping the nearby nation, ushering in a high-temperature event to the country's outback.
Agencies have issued burning restrictions for fear of forest fires.