Intense gusts reaching speeds of as high as 155km/h (96mph) have resulted in around 90,000 households experiencing outages and forced officials to cancel more than 100 flights, as reported by local media.
The winds are impacting the complete South Island and lower areas of the northern region, according to the country's meteorological service.
New Zealand authorities have issued rare high-level wind alerts - the highest alert level - in central regions including these major districts.
Locals have been urged to stay indoors, stay off roads, and get ready for additional utility disruptions.
Widespread Destruction and Emergency Response
The power cut appears to be affecting residences mainly in the South Island, although authorities say that power was being restored progressively.
Domestic outlets have stated that in some places homes have lost their roofs, whereas utility poles and vegetation have been knocked down by the gales.
Within the capital, a individual was fatally injured after being impacted by a wooden fragment at a popular trail walking spot on Tuesday.
Meanwhile in Wellington, a woman was blown onto moving cars on a road by a powerful blast, in a event that was recorded in a viral dashcam video.
Flights in and out of the metropolis have been halted due to the winds, and certain highways and community centers are also closed.
At the same time Canterbury officials have issued a emergency situation, to assist recovery activities.
Work Stoppages Amid Extreme Weather
The powerful gales on today occur while many of school staff, physicians and civil servants are participating in what has been called a "major walkout", requesting higher wages and enhanced employment terms.
However the intense climate has forced them to modify various scheduled activities, with some outdoor rallies moved indoors or abandoned.
Comparable winds are also sweeping the nearby nation, causing a period of extreme heat to the nation's interior regions.
Authorities have declared burning restrictions for concern about bushfires.
