Powerful winds reaching velocities of approximately 155km/h (96mph) have caused around 90,000 households lacking electricity and forced authorities to cancel over 100 air travel services, as reported by local media.
These gusts are impacting the whole southern region and lower areas of the northern region, as stated by the country's meteorological service.
New Zealand authorities have issued infrequent high-level wind alerts - the most severe warning - in core zones encompassing Wellington and Canterbury.
People have been encouraged to remain inside, refrain from journeys, and prepare for more utility disruptions.
Widespread Destruction and Emergency Measures
The electricity loss is primarily influencing households mainly in the South Island, while officials state that power was being gradually reinstated.
Local media have stated that in some places homes have lost their roofs, and power lines and trees have been toppled by the gales.
Across Wellington, a individual was killed after being hit by a tree branch at a popular trail walking spot on Tuesday.
Additionally in the city, a female was pushed toward moving cars on a street by a powerful blast, in a moment that was captured in a popular vehicle recording.
Flights entering and leaving the city have been halted because of the weather, while certain highways and community centers are also closed.
Meanwhile Canterbury officials have announced a state of emergency, to assist recovery activities.
Work Stoppages Alongside Harsh Conditions
The wild winds on Thursday coincide with many of educators, medical professionals and government employees are engaged in what has been called a "mega strike", requesting improved salaries and workplace environments.
However the intense climate has compelled them to modify various scheduled activities, with various open-air gatherings shifted to interior venues or cancelled.
Similar gusts are affecting Australia, bringing a heatwave to the nation's interior regions.
Agencies have declared flame prohibitions for fear of wildfires.