Intense gusts attaining speeds of as high as 155km/h (96mph) have caused nearly 90,000 homes lacking electricity and forced agencies to halt more than 100 flights, based on local media.
The gales are influencing the whole South Island and southern sections of the North Island, as stated by the weather forecasting body.
New Zealand authorities have announced infrequent red wind warnings - the top caution category - in core zones including these major districts.
Residents have been urged to stay indoors, avoid travel, and make arrangements for more power and communication outages.
Widespread Destruction and Emergency Measures
This outage seems to be impacting households mainly in the southern region, while officials say that the electricity supply was being restored progressively.
Local media have indicated that in some places homes have lost their roofs, while trees and electricity poles have been knocked down by the gales.
Across Wellington, a person was fatally injured after being hit by a falling limb at a well-known hiking path on earlier this week.
Meanwhile in Wellington, a individual was blown onto oncoming traffic on a thoroughfare by a intensive burst, in a event that was captured in a viral dashcam video.
Air travel in and out of the metropolis have been suspended because of the gusts, and various routes and public facilities are not operating.
At the same time local leaders have announced a crisis declaration, to assist emergency management operations.
Strike Action Amid Extreme Weather
These intense gusts on today coincide with many of educators, medical professionals and government employees take part in what has been called a "major walkout", demanding higher wages and enhanced employment terms.
Yet the intense climate has compelled them to alter various scheduled activities, with some outdoor rallies relocated inside or cancelled.
Like conditions are also sweeping the nearby nation, causing a heatwave to the remote areas.
Agencies have announced flame prohibitions for fear of bushfires.
