Intense winds reaching velocities of up to 155km/h (96mph) have caused nearly 90,000 properties without power and compelled authorities to halt more than 100 flights, according to domestic outlets.
The winds are impacting the whole South Island and lower areas of the North Island, according to the national weather agency.
Officials in New Zealand have released infrequent high-level wind alerts - the highest alert level - in central regions including Wellington and Canterbury.
Locals have been encouraged to stay indoors, refrain from journeys, and make arrangements for additional utility disruptions.
Widespread Damage and Crisis Response
The electricity loss seems to be impacting households mainly in the southern region, though officials state that power was being slowly brought back.
Regional news have indicated that in various locations roofs have been ripped off houses, whereas power lines and trees have been toppled by the winds.
Across Wellington, a individual was lost his life after being impacted by a tree branch at a frequent walking route on earlier this week.
Additionally in the city, a female was swept into approaching vehicles on a road by a intensive burst, in a moment that was captured in a popular vehicle recording.
Air travel in and out of the city have been halted because of the winds, and certain highways and community centers are shut down.
Simultaneously authorities in Canterbury have announced a crisis declaration, to facilitate disaster response efforts.
Strike Action Alongside Extreme Weather
The wild winds on Thursday occur while many of teachers, doctors and other public workers are participating in what has been termed a "significant labor action", demanding higher wages and enhanced employment terms.
But the severe conditions has pressured them to alter certain arrangements, with various open-air gatherings moved indoors or called off.
Similar gusts are impacting Australia, ushering in a heatwave to the nation's interior regions.
Agencies have declared flame prohibitions for concern about bushfires.
