Powerful gales attaining speeds of approximately 155km/h (96mph) have resulted in approximately 90,000 properties lacking electricity and led officials to halt in excess of 100 flights, based on local media.
These gusts are influencing the whole South Island and southern sections of the North Island, according to the country's meteorological service.
New Zealand authorities have issued infrequent red wind warnings - the most severe warning - in core zones encompassing these major districts.
Residents have been encouraged to stay indoors, refrain from journeys, and prepare for additional utility disruptions.
Widespread Destruction and Emergency Measures
The power cut is primarily influencing residences mostly in the South Island, although agencies state that energy was being slowly brought back.
Regional news have indicated that in various locations structures have suffered roof damage, and power lines and trees have been knocked down by the winds.
Across Wellington, a individual was fatally injured after being impacted by a wooden fragment at a well-known hiking path on Tuesday.
Also in the capital, a female was blown onto moving cars on a thoroughfare by a powerful blast, in a moment that was filmed in a viral dashcam video.
Aircraft services to and from the city have been halted due to the gusts, and various routes and public facilities are shut down.
Simultaneously local leaders have declared a state of emergency, to facilitate disaster response efforts.
Labor Protests During Severe Conditions
The wild winds on Thursday coincide with many of educators, medical professionals and government employees are participating in what has been called a "major walkout", calling for higher wages and enhanced employment terms.
But the extreme weather has compelled them to change some of their plans, with some outdoor rallies shifted to interior venues or cancelled.
Similar gusts are also sweeping Australia, ushering in a heatwave to the nation's interior regions.
Agencies have announced fire bans for apprehension regarding forest fires.
