Severe gales reaching velocities of approximately 155km/h (96mph) have left around 90,000 households without power and led agencies to halt over 100 air travel services, according to regional news sources.
The gales are affecting the complete South Island and southern parts of the northern region, according to the weather forecasting body.
New Zealand authorities have announced uncommon red wind warnings - the top caution category - in key areas encompassing Wellington and Canterbury.
Residents have been encouraged to stay indoors, refrain from journeys, and make arrangements for further power and communication outages.
Broad Damage and Emergency Response
The power cut appears to be affecting residences mainly in the South Island, while agencies report that the electricity supply was being gradually reinstated.
Local media have stated that in some places structures have suffered roof damage, whereas trees and electricity poles have been knocked down by the gales.
In Wellington, a man was lost his life after being struck by a tree branch at a popular trail walking spot on Tuesday.
Additionally in the city, a female was blown onto moving cars on a street by a powerful blast, in a moment that was captured in a viral dashcam video.
Aircraft services entering and leaving the city have been suspended due to the winds, while certain highways and community centers are also closed.
At the same time authorities in Canterbury have announced a crisis declaration, to support recovery activities.
Work Stoppages Alongside Severe Weather
The powerful gales on this day coincide with many of teachers, doctors and other public workers are engaged in what has been termed a "major walkout", requesting higher wages and enhanced employment terms.
Yet the extreme weather has forced them to change some of their plans, with some outdoor rallies shifted to interior venues or called off.
Like conditions are impacting the nearby nation, bringing a heatwave to the country's outback.
Officials have announced flame prohibitions for apprehension regarding wildfires.
