Severe winds reaching speeds of as high as 155km/h (96mph) have left nearly 90,000 homes lacking electricity and compelled authorities to cancel in excess of 100 flights, based on domestic outlets.
The gales are affecting the entire southern region and lower areas of the North Island, according to the national weather agency.
Officials in New Zealand have announced uncommon high-level wind alerts - the highest alert level - in central regions including Wellington and Canterbury.
People have been encouraged to stay indoors, refrain from journeys, and make arrangements for additional electricity and network failures.
Widespread Damage and Emergency Measures
The power cut is primarily influencing residences mainly in the southern region, while authorities say that the electricity supply was being restored progressively.
Local media have reported that in certain areas structures have suffered roof damage, while utility poles and vegetation have been toppled by the gusts.
Across Wellington, a man was lost his life after being impacted by a tree branch at a well-known hiking path on earlier this week.
Meanwhile in Wellington, a woman was swept into oncoming traffic on a street by a powerful blast, in a event that was captured in a popular vehicle recording.
Aircraft services to and from the city have been suspended because of the winds, while certain highways and community centers are also closed.
At the same time Canterbury officials have declared a crisis declaration, to support emergency management operations.
Strike Action Amid Extreme Conditions
The powerful gales on today occur while numerous of teachers, doctors and other public workers take part in what has been termed a "mega strike", calling for higher wages and enhanced employment terms.
However the severe conditions has pressured them to alter some of their plans, with several external protests relocated inside or abandoned.
Comparable winds are also sweeping the neighboring country, ushering in a heatwave to the nation's interior regions.
Agencies have announced fire bans for apprehension regarding wildfires.
