Powerful gusts attaining speeds of as high as 155km/h (96mph) have resulted in approximately 90,000 properties lacking electricity and forced authorities to call off in excess of 100 flights, according to local media.
The gales are affecting the complete South Island and lower areas of the northern region, according to the national weather agency.
The nation's agencies have issued uncommon red wind warnings - the top caution category - in key areas encompassing Wellington and Canterbury.
People have been urged to stay indoors, refrain from journeys, and prepare for further electricity and network failures.
Extensive Impact and Emergency Response
The power cut seems to be impacting homes mostly in the southern region, while agencies report that power was being gradually reinstated.
Local media have indicated that in some places structures have suffered roof damage, whereas power lines and trees have been brought down by the gales.
Across Wellington, a individual was lost his life after being impacted by a tree branch at a popular trail walking spot on earlier this week.
Also in the capital, a individual was blown onto approaching vehicles on a thoroughfare by a powerful blast, in a event that was filmed in a popular vehicle recording.
Aircraft services to and from the urban area have been halted due to the winds, while certain highways and community centers are also closed.
At the same time local leaders have issued a state of emergency, to facilitate disaster response efforts.
Labor Protests Amid Extreme Weather
The wild winds on Thursday occur while tens of thousands of school staff, physicians and civil servants take part in what has been described as a "major walkout", requesting higher wages and enhanced employment terms.
However the severe conditions has compelled them to modify certain arrangements, with several external protests relocated inside or abandoned.
Like conditions are also sweeping the neighboring country, ushering in a high-temperature event to the country's outback.
Officials have declared fire bans for apprehension regarding forest fires.
