Powerful gales attaining velocities of as high as 155km/h (96mph) have caused approximately 90,000 homes without power and forced authorities to cancel in excess of 100 flights, based on domestic outlets.
These gusts are affecting the complete southern region and lower areas of the northern region, as stated by the weather forecasting body.
The nation's agencies have announced rare high-level wind alerts - the top caution category - in central regions including Wellington and Canterbury.
Locals have been encouraged to remain inside, avoid travel, and make arrangements for additional electricity and network failures.
Widespread Impact and Emergency Measures
The power cut is primarily influencing households predominantly in the South Island, though authorities say that the electricity supply was being gradually reinstated.
Local media have stated that in various locations structures have suffered roof damage, whereas power lines and trees have been brought down by the winds.
Within the capital, a man was fatally injured after being impacted by a tree branch at a frequent walking route on Tuesday.
Meanwhile in Wellington, a female was swept into approaching vehicles on a thoroughfare by a powerful blast, in a moment that was recorded in a viral dashcam video.
Aircraft services in and out of the city have been halted as a result of the weather, and various routes and public facilities are shut down.
Meanwhile authorities in Canterbury have declared a emergency situation, to facilitate recovery activities.
Strike Action During Extreme Weather
The powerful gales on Thursday occur while numerous of teachers, doctors and other public workers are engaged in what has been called a "mega strike", requesting higher wages and enhanced employment terms.
But the extreme weather has forced them to modify certain arrangements, with several external protests moved indoors or called off.
Similar gusts are affecting the nearby nation, causing a heatwave to the country's outback.
Authorities have announced burning restrictions for fear of forest fires.
