Powerful gusts reaching velocities of up to 155km/h (96mph) have caused approximately 90,000 homes without power and forced authorities to cancel more than 100 aircraft departures, based on regional news sources.
The winds are impacting the whole South Island and lower areas of the North Island, per the country's meteorological service.
Officials in New Zealand have released rare high-level wind alerts - the top caution category - in core zones including Wellington and Canterbury.
People have been encouraged to avoid going outside, avoid travel, and make arrangements for further electricity and network failures.
Widespread Impact and Crisis Measures
The electricity loss seems to be impacting homes predominantly in the southern region, although agencies report that energy was being gradually reinstated.
Domestic outlets have reported that in some places structures have suffered roof damage, whereas utility poles and vegetation have been toppled by the gusts.
Across Wellington, a person was killed after being impacted by a tree branch at a popular trail walking spot on Tuesday.
Meanwhile in Wellington, a individual was blown onto approaching vehicles on a street by a powerful blast, in a moment that was filmed in a popular vehicle recording.
Aircraft services in and out of the urban area have been suspended due to the winds, whereas various routes and public facilities are shut down.
Meanwhile Canterbury officials have declared a crisis declaration, to facilitate emergency management operations.
Labor Protests Amid Harsh Conditions
The wild winds on Thursday occur while numerous of teachers, doctors and other public workers are engaged in what has been called a "major walkout", demanding improved salaries and workplace environments.
However the intense climate has compelled them to alter some of their plans, with several external protests relocated inside or called off.
Similar gusts are also sweeping the neighboring country, bringing a high-temperature event to the country's outback.
Authorities have announced fire bans for fear of bushfires.
