Intense gusts attaining speeds of up to 155km/h (96mph) have caused around 90,000 homes lacking electricity and led authorities to call off over 100 flights, based on domestic outlets.
These gusts are affecting the entire South Island and southern parts of the northern region, according to the weather forecasting body.
New Zealand authorities have issued rare high-level wind alerts - the top caution category - in key areas such as these major districts.
Locals have been encouraged to remain inside, stay off roads, and get ready for further utility disruptions.
Extensive Damage and Emergency Measures
The electricity loss appears to be affecting homes mainly in the southern region, though authorities state that power was being slowly brought back.
Regional news have stated that in some places structures have suffered roof damage, and trees and electricity poles have been toppled by the gales.
Across Wellington, a individual was lost his life after being struck by a tree branch at a frequent walking route on Tuesday.
Meanwhile in Wellington, a individual was blown onto moving cars on a thoroughfare by a strong gust of wind, in a moment that was recorded in a viral dashcam video.
Flights to and from the urban area have been cancelled due to the gusts, and some roads and libraries are also closed.
At the same time authorities in Canterbury have announced a crisis declaration, to assist emergency management operations.
Work Stoppages Amid Severe Weather
The wild winds on this day come as tens of thousands of educators, medical professionals and government employees are participating in what has been described as a "mega strike", calling for improved salaries and workplace environments.
However the severe conditions has compelled them to alter some of their plans, with some outdoor rallies relocated inside or cancelled.
Similar gusts are also sweeping the nearby nation, causing a heatwave to the remote areas.
Agencies have announced burning restrictions for fear of wildfires.
