Severe gusts reaching speeds of up to 155km/h (96mph) have caused around 90,000 properties lacking electricity and compelled authorities to cancel more than 100 air travel services, according to domestic outlets.
The gales are impacting the entire southern region and southern parts of the northern region, per the weather forecasting body.
Officials in New Zealand have announced infrequent high-level wind alerts - the top caution category - in central regions encompassing these major districts.
Locals have been advised to avoid going outside, avoid travel, and prepare for more power and communication outages.
Extensive Damage and Crisis Measures
This outage is primarily influencing residences mainly in the southern region, while officials state that power was being gradually reinstated.
Local media have indicated that in some places roofs have been ripped off houses, while trees and electricity poles have been toppled by the gusts.
In Wellington, a individual was lost his life after being hit by a falling limb at a well-known hiking path on earlier this week.
Also in the capital, a individual was pushed toward moving cars on a road by a strong gust of wind, in a event that was recorded in a widely shared car camera footage.
Aircraft services to and from the city have been suspended due to the weather, and various routes and public facilities are not operating.
Meanwhile local leaders have issued a emergency situation, to assist recovery activities.
Strike Action Alongside Harsh Weather
These intense gusts on today occur while many of educators, medical professionals and government employees are engaged in what has been termed a "significant labor action", calling for improved salaries and workplace environments.
Yet the extreme weather has pressured them to alter some of their plans, with some outdoor rallies moved indoors or cancelled.
Like conditions are affecting the nearby nation, ushering in a high-temperature event to the remote areas.
Officials have declared flame prohibitions for fear of bushfires.