Powerful gales reaching velocities of approximately 155km/h (96mph) have caused nearly 90,000 households without power and compelled agencies to call off more than 100 flights, according to local media.
These gusts are influencing the entire southern region and lower areas of the northern region, per the weather forecasting body.
New Zealand authorities have issued rare high-level wind alerts - the most severe warning - in core zones encompassing Canterbury and Wellington.
People have been urged to avoid going outside, avoid travel, and make arrangements for further utility disruptions.
Widespread Damage and Emergency Measures
The power cut appears to be affecting residences mostly in the southern region, although officials say that power was being gradually reinstated.
Local media have indicated that in certain areas structures have suffered roof damage, whereas trees and electricity poles have been knocked down by the gusts.
Across Wellington, a person was killed after being impacted by a wooden fragment at a popular trail walking spot on Tuesday.
Meanwhile in Wellington, a woman was blown onto moving cars on a street by a intensive burst, in a moment that was filmed in a viral dashcam video.
Aircraft services to and from the metropolis have been halted as a result of the gusts, and some roads and libraries are not operating.
Simultaneously authorities in Canterbury have announced a state of emergency, to facilitate disaster response efforts.
Strike Action Alongside Harsh Conditions
The wild winds on today coincide with numerous of educators, medical professionals and government employees are participating in what has been described as a "mega strike", requesting higher wages and enhanced employment terms.
However the extreme weather has pressured them to alter various scheduled activities, with various open-air gatherings shifted to interior venues or cancelled.
Comparable winds are also sweeping Australia, causing a period of extreme heat to the country's outback.
Authorities have issued flame prohibitions for fear of bushfires.