Intense gales hitting speeds of approximately 155km/h (96mph) have resulted in approximately 90,000 households experiencing outages and led authorities to halt more than 100 flights, based on domestic outlets.
The winds are affecting the whole southern region and lower areas of the North Island, according to the national weather agency.
Officials in New Zealand have released uncommon high-level wind alerts - the most severe warning - in central regions such as these major districts.
Residents have been urged to avoid going outside, avoid travel, and make arrangements for further electricity and network failures.
Extensive Damage and Crisis Measures
The power cut appears to be affecting residences mostly in the South Island, though authorities state that power was being restored progressively.
Domestic outlets have indicated that in certain areas structures have suffered roof damage, whereas power lines and trees have been brought down by the winds.
Across Wellington, a person was fatally injured after being struck by a falling limb at a well-known hiking path on earlier this week.
Meanwhile in Wellington, a female was blown onto approaching vehicles on a street by a strong gust of wind, in a event that was captured in a widely shared car camera footage.
Air travel in and out of the city have been halted as a result of the gusts, and various routes and public facilities are not operating.
Meanwhile local leaders have announced a state of emergency, to support recovery activities.
Work Stoppages Alongside Harsh Weather
The powerful gales on Thursday coincide with tens of thousands of school staff, physicians and civil servants take part in what has been called a "mega strike", demanding higher wages and enhanced employment terms.
However the extreme weather has compelled them to modify various scheduled activities, with several external protests moved indoors or called off.
Similar gusts are also sweeping the neighboring country, ushering in a heatwave to the country's outback.
Agencies have issued burning restrictions for apprehension regarding wildfires.
