Powerful gales reaching velocities of approximately 155km/h (96mph) have caused nearly 90,000 homes lacking electricity and led officials to cancel more than 100 aircraft departures, based on local media.
The gales are impacting the complete South Island and southern parts of the North Island, as stated by the weather forecasting body.
Officials in New Zealand have released infrequent high-level wind alerts - the highest alert level - in core zones encompassing these major districts.
People have been advised to stay indoors, avoid travel, and prepare for additional power and communication outages.
Extensive Destruction and Emergency Measures
The electricity loss is primarily influencing residences mostly in the South Island, while authorities state that power was being restored progressively.
Regional news have indicated that in various locations structures have suffered roof damage, and power lines and trees have been toppled by the gusts.
Across Wellington, a person was killed after being impacted by a wooden fragment at a frequent walking route on Tuesday.
Additionally in the city, a female was pushed toward moving cars on a thoroughfare by a intensive burst, in a event that was recorded in a viral dashcam video.
Flights entering and leaving the urban area have been halted due to the gusts, and various routes and public facilities are also closed.
Meanwhile local leaders have announced a emergency situation, to assist disaster response efforts.
Strike Action Alongside Severe Conditions
The wild winds on Thursday occur while numerous of educators, medical professionals and government employees take part in what has been termed a "major walkout", demanding improved salaries and workplace environments.
However the extreme weather has compelled them to change various scheduled activities, with various open-air gatherings moved indoors or abandoned.
Similar gusts are affecting the neighboring country, causing a high-temperature event to the country's outback.
Agencies have issued fire bans for apprehension regarding bushfires.