Intense gusts attaining velocities of up to 155km/h (96mph) have resulted in nearly 90,000 homes without power and led authorities to cancel over 100 air travel services, based on local media.
The gales are impacting the complete southern region and lower areas of the North Island, according to the weather forecasting body.
New Zealand authorities have announced rare red wind warnings - the most severe warning - in core zones encompassing Wellington and Canterbury.
Residents have been advised to avoid going outside, stay off roads, and prepare for more electricity and network failures.
Extensive Impact and Emergency Measures
The power cut appears to be affecting residences predominantly in the southern region, while authorities say that power was being restored progressively.
Domestic outlets have reported that in certain areas roofs have been ripped off houses, while power lines and trees have been toppled by the winds.
In Wellington, a individual was lost his life after being struck by a tree branch at a frequent walking route on Tuesday.
Additionally in the city, a female was pushed toward moving cars on a thoroughfare by a powerful blast, in a event that was recorded in a viral dashcam video.
Aircraft services entering and leaving the metropolis have been halted because of the gusts, whereas some roads and libraries are not operating.
At the same time authorities in Canterbury have announced a state of emergency, to support recovery activities.
Labor Protests Amid Extreme Weather
The powerful gales on Thursday coincide with tens of thousands of school staff, physicians and civil servants are participating in what has been called a "mega strike", calling for higher wages and enhanced employment terms.
However the severe conditions has compelled them to alter various scheduled activities, with various open-air gatherings shifted to interior venues or called off.
Like conditions are also sweeping the nearby nation, bringing a period of extreme heat to the remote areas.
Agencies have declared burning restrictions for apprehension regarding bushfires.
