Intense gusts reaching velocities of as high as 155km/h (96mph) have left around 90,000 homes experiencing outages and led authorities to halt more than 100 air travel services, as reported by local media.
These gusts are influencing the complete South Island and lower areas of the northern region, per the national weather agency.
The nation's agencies have announced rare red wind warnings - the top caution category - in central regions including Wellington and Canterbury.
Residents have been urged to stay indoors, avoid travel, and get ready for additional electricity and network failures.
Extensive Destruction and Crisis Measures
This outage is primarily influencing households mainly in the South Island, though authorities report that the electricity supply was being slowly brought back.
Domestic outlets have reported that in various locations structures have suffered roof damage, whereas utility poles and vegetation have been brought down by the gusts.
Across Wellington, a individual was fatally injured after being hit by a tree branch at a popular trail walking spot on earlier this week.
Meanwhile in Wellington, a individual was pushed toward oncoming traffic on a thoroughfare by a intensive burst, in a moment that was captured in a widely shared car camera footage.
Aircraft services to and from the metropolis have been suspended because of the winds, whereas some roads and libraries are also closed.
Meanwhile authorities in Canterbury have announced a crisis declaration, to support recovery activities.
Strike Action Alongside Harsh Conditions
These intense gusts on this day come as tens of thousands of school staff, physicians and civil servants are participating in what has been termed a "significant labor action", demanding better pay and working conditions.
Yet the extreme weather has pressured them to change various scheduled activities, with some outdoor rallies shifted to interior venues or abandoned.
Similar gusts are impacting the neighboring country, bringing a high-temperature event to the nation's interior regions.
Authorities have issued burning restrictions for concern about bushfires.
