Severe gales hitting speeds of up to 155km/h (96mph) have caused around 90,000 homes experiencing outages and forced officials to cancel over 100 flights, based on domestic outlets.
The gales are influencing the whole South Island and lower areas of the North Island, as stated by the country's meteorological service.
New Zealand authorities have issued infrequent severe gust advisories - the most severe warning - in central regions such as these major districts.
People have been advised to remain inside, refrain from journeys, and prepare for further electricity and network failures.
Extensive Impact and Crisis Measures
This outage seems to be impacting residences mainly in the southern region, although officials report that energy was being slowly brought back.
Domestic outlets have indicated that in some places roofs have been ripped off houses, while trees and electricity poles have been toppled by the winds.
Across Wellington, a individual was killed after being impacted by a tree branch at a popular trail walking spot on Tuesday.
Also in the capital, a woman was blown onto approaching vehicles on a street by a intensive burst, in a moment that was captured in a widely shared car camera footage.
Aircraft services entering and leaving the urban area have been cancelled due to the gusts, while various routes and public facilities are shut down.
Simultaneously local leaders have declared a crisis declaration, to facilitate emergency management operations.
Strike Action Alongside Extreme Weather
These intense gusts on today occur while tens of thousands of school staff, physicians and civil servants are participating in what has been called a "mega strike", calling for improved salaries and workplace environments.
However the intense climate has compelled them to alter certain arrangements, with various open-air gatherings relocated inside or cancelled.
Comparable winds are affecting Australia, bringing a period of extreme heat to the remote areas.
Officials have declared burning restrictions for fear of bushfires.