Powerful gales hitting velocities of up to 155km/h (96mph) have resulted in around 90,000 properties without power and forced officials to halt in excess of 100 aircraft departures, as reported by local media.
These gusts are impacting the complete South Island and lower areas of the northern region, according to the national weather agency.
The nation's agencies have released rare high-level wind alerts - the top caution category - in key areas including these major districts.
Locals have been urged to remain inside, refrain from journeys, and prepare for further power and communication outages.
Extensive Impact and Emergency Measures
The electricity loss appears to be affecting homes predominantly in the southern region, though officials say that power was being gradually reinstated.
Domestic outlets have reported that in certain areas homes have lost their roofs, while power lines and trees have been knocked down by the winds.
Across Wellington, a individual was lost his life after being struck by a tree branch at a popular trail walking spot on earlier this week.
Meanwhile in Wellington, a woman was pushed toward oncoming traffic on a street by a strong gust of wind, in a moment that was captured in a viral dashcam video.
Aircraft services to and from the metropolis have been suspended because of the gusts, while various routes and public facilities are shut down.
At the same time local leaders have announced a state of emergency, to facilitate emergency management operations.
Labor Protests Alongside Severe Weather
The wild winds on this day occur while tens of thousands of educators, medical professionals and government employees are engaged in what has been described as a "mega strike", demanding higher wages and enhanced employment terms.
However the severe conditions has compelled them to alter various scheduled activities, with some outdoor rallies relocated inside or called off.
Like conditions are also sweeping the nearby nation, ushering in a high-temperature event to the country's outback.
Agencies have declared fire bans for concern about bushfires.
