Powerful gales reaching speeds of up to 155km/h (96mph) have caused nearly 90,000 properties experiencing outages and forced officials to halt more than 100 flights, as reported by domestic outlets.
The winds are impacting the entire South Island and lower areas of the North Island, according to the national weather agency.
New Zealand authorities have issued uncommon red wind warnings - the top caution category - in key areas including Wellington and Canterbury.
People have been advised to stay indoors, avoid travel, and make arrangements for further utility disruptions.
Extensive Impact and Emergency Measures
The electricity loss is primarily influencing residences mostly in the southern region, while authorities state that power was being restored progressively.
Domestic outlets have reported that in various locations structures have suffered roof damage, whereas trees and electricity poles have been knocked down by the gales.
In Wellington, a person was lost his life after being impacted by a tree branch at a well-known hiking path on Tuesday.
Additionally in the city, a woman was blown onto oncoming traffic on a road by a intensive burst, in a event that was recorded in a viral dashcam video.
Air travel in and out of the urban area have been suspended as a result of the gusts, whereas various routes and public facilities are shut down.
Simultaneously Canterbury officials have announced a emergency situation, to support disaster response efforts.
Work Stoppages Alongside Severe Conditions
These intense gusts on this day coincide with many of school staff, physicians and civil servants are engaged in what has been described as a "major walkout", calling for improved salaries and workplace environments.
But the extreme weather has compelled them to change certain arrangements, with various open-air gatherings relocated inside or abandoned.
Comparable winds are also sweeping the neighboring country, causing a high-temperature event to the country's outback.
Officials have declared flame prohibitions for concern about wildfires.