Intense gusts hitting velocities of as high as 155km/h (96mph) have resulted in around 90,000 homes without power and compelled officials to halt over 100 air travel services, based on regional news sources.
These gusts are impacting the entire South Island and lower areas of the North Island, according to the weather forecasting body.
New Zealand authorities have issued infrequent severe gust advisories - the top caution category - in central regions including these major districts.
People have been encouraged to remain inside, stay off roads, and get ready for further electricity and network failures.
Broad Destruction and Crisis Measures
The electricity loss appears to be affecting residences mostly in the South Island, though authorities report that energy was being restored progressively.
Local media have stated that in various locations roofs have been ripped off houses, and utility poles and vegetation have been toppled by the winds.
Within the capital, a person was killed after being struck by a tree branch at a frequent walking route on earlier this week.
Also in the capital, a woman was blown onto oncoming traffic on a street by a intensive burst, in a moment that was filmed in a widely shared car camera footage.
Flights in and out of the metropolis have been cancelled due to the weather, while certain highways and community centers are also closed.
Simultaneously local leaders have declared a state of emergency, to support recovery activities.
Strike Action During Harsh Weather
The powerful gales on Thursday come as numerous of educators, medical professionals and government employees are participating in what has been called a "significant labor action", calling for higher wages and enhanced employment terms.
But the intense climate has forced them to modify some of their plans, with various open-air gatherings relocated inside or called off.
Comparable winds are also sweeping the nearby nation, causing a heatwave to the country's outback.
Officials have announced flame prohibitions for concern about bushfires.
