Intense gusts reaching speeds of as high as 155km/h (96mph) have left around 90,000 households experiencing outages and compelled authorities to call off in excess of 100 air travel services, based on domestic outlets.
These gusts are affecting the whole South Island and lower areas of the northern region, according to the country's meteorological service.
Officials in New Zealand have issued infrequent red wind warnings - the most severe warning - in central regions encompassing Canterbury and Wellington.
People have been urged to avoid going outside, stay off roads, and get ready for more electricity and network failures.
Widespread Damage and Crisis Measures
This outage seems to be impacting households predominantly in the southern region, although agencies report that energy was being gradually reinstated.
Domestic outlets have reported that in various locations structures have suffered roof damage, whereas trees and electricity poles have been knocked down by the gusts.
Within the capital, a man was killed after being hit by a tree branch at a popular trail walking spot on Tuesday.
Meanwhile in Wellington, a woman was swept into approaching vehicles on a thoroughfare by a strong gust of wind, in a event that was filmed in a viral dashcam video.
Flights in and out of the urban area have been suspended due to the gusts, and certain highways and community centers are shut down.
Meanwhile Canterbury officials have declared a emergency situation, to facilitate emergency management operations.
Work Stoppages Alongside Extreme Conditions
These intense gusts on Thursday occur while tens of thousands of teachers, doctors and other public workers are participating in what has been termed a "mega strike", calling for higher wages and enhanced employment terms.
Yet the extreme weather has forced them to alter certain arrangements, with various open-air gatherings moved indoors or called off.
Like conditions are impacting the neighboring country, bringing a period of extreme heat to the country's outback.
Agencies have declared burning restrictions for concern about forest fires.
