Powerful winds reaching speeds of up to 155km/h (96mph) have resulted in around 90,000 households experiencing outages and led authorities to cancel more than 100 air travel services, based on local media.
These gusts are impacting the complete southern region and southern parts of the North Island, according to the weather forecasting body.
New Zealand authorities have announced infrequent high-level wind alerts - the top caution category - in key areas including Wellington and Canterbury.
Locals have been urged to remain inside, refrain from journeys, and make arrangements for more utility disruptions.
Extensive Impact and Crisis Measures
The electricity loss appears to be affecting households mainly in the South Island, though authorities report that energy was being restored progressively.
Domestic outlets have stated that in some places roofs have been ripped off houses, whereas trees and electricity poles have been brought down by the winds.
In Wellington, a person was lost his life after being struck by a tree branch at a well-known hiking path on Tuesday.
Also in the capital, a female was blown onto moving cars on a road by a intensive burst, in a moment that was filmed in a popular vehicle recording.
Air travel entering and leaving the metropolis have been suspended as a result of the winds, and some roads and libraries are not operating.
At the same time local leaders have declared a crisis declaration, to facilitate disaster response efforts.
Work Stoppages Alongside Harsh Weather
The powerful gales on Thursday coincide with numerous of teachers, doctors and other public workers are participating in what has been termed a "major walkout", requesting better pay and working conditions.
But the extreme weather has compelled them to modify some of their plans, with various open-air gatherings relocated inside or abandoned.
Similar gusts are also sweeping Australia, ushering in a heatwave to the remote areas.
Agencies have issued burning restrictions for fear of wildfires.
