Powerful gales reaching speeds of approximately 155km/h (96mph) have left around 90,000 households without power and forced authorities to call off over 100 air travel services, based on domestic outlets.
These gusts are influencing the whole southern region and southern parts of the North Island, per the weather forecasting body.
New Zealand authorities have issued rare red wind warnings - the highest alert level - in key areas including Canterbury and Wellington.
Locals have been advised to stay indoors, avoid travel, and make arrangements for more electricity and network failures.
Extensive Destruction and Emergency Response
The electricity loss is primarily influencing residences mainly in the South Island, while agencies state that power was being slowly brought back.
Local media have stated that in various locations roofs have been ripped off houses, and utility poles and vegetation have been knocked down by the gusts.
In Wellington, a person was lost his life after being struck 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 thoroughfare by a powerful blast, in a event that was captured in a popular vehicle recording.
Air travel to and from the city have been cancelled as a result of the winds, while certain highways and community centers are also closed.
Simultaneously local leaders have announced a crisis declaration, to facilitate emergency management operations.
Work Stoppages Alongside Harsh Weather
These intense gusts on Thursday coincide with many of school staff, physicians and civil servants are engaged in what has been described as a "significant labor action", demanding improved salaries and workplace environments.
But the intense climate has compelled them to alter various scheduled activities, with various open-air gatherings relocated inside or called off.
Similar gusts are also sweeping Australia, causing a high-temperature event to the nation's interior regions.
Officials have declared burning restrictions for apprehension regarding bushfires.