Powerful gales hitting velocities of approximately 155km/h (96mph) have caused approximately 90,000 homes without power and compelled agencies to halt over 100 air travel services, according to domestic outlets.
The gales are influencing the whole South Island and southern parts of the North Island, according to the weather forecasting body.
The nation's agencies have announced infrequent high-level wind alerts - the top caution category - in key areas including Canterbury and Wellington.
Residents have been encouraged to avoid going outside, refrain from journeys, and get ready for additional power and communication outages.
Widespread Destruction and Crisis Measures
This outage appears to be affecting residences predominantly in the southern region, although authorities state that power was being gradually reinstated.
Local media have reported that in various locations homes have lost their roofs, and power lines and trees have been knocked down by the winds.
In Wellington, a man was killed after being impacted by a tree branch at a frequent walking route on Tuesday.
Meanwhile in Wellington, a woman was blown onto approaching vehicles on a street by a strong gust of wind, in a event that was filmed in a viral dashcam video.
Aircraft services entering and leaving the metropolis have been cancelled as a result of the winds, whereas various routes and public facilities are not operating.
At the same time Canterbury officials have announced a crisis declaration, to assist recovery activities.
Labor Protests Amid Severe Weather
The powerful gales on this day occur while tens of thousands of school staff, physicians and civil servants are engaged in what has been termed a "mega strike", calling for higher wages and enhanced employment terms.
But the severe conditions has forced them to alter various scheduled activities, with several external protests shifted to interior venues or abandoned.
Comparable winds are affecting the nearby nation, ushering in a high-temperature event to the country's outback.
Authorities have announced burning restrictions for apprehension regarding forest fires.
