Severe gusts attaining speeds of as high as 155km/h (96mph) have left approximately 90,000 households experiencing outages and forced authorities to call off in excess of 100 flights, according to domestic outlets.
The winds are impacting the whole South Island and southern sections of the northern region, as stated by the national weather agency.
New Zealand authorities have released rare high-level wind alerts - the top caution category - in key areas including Canterbury and Wellington.
Locals have been urged to remain inside, stay off roads, and make arrangements for additional electricity and network failures.
Broad Impact and Crisis Response
The power cut is primarily influencing homes predominantly in the southern region, while authorities report that the electricity supply was being restored progressively.
Domestic outlets have stated that in certain areas roofs have been ripped off houses, whereas trees and electricity poles have been knocked down by the gusts.
Across Wellington, a person was killed after being impacted by a falling limb at a frequent walking route on Tuesday.
Additionally in the city, a woman was swept into approaching vehicles on a thoroughfare by a strong gust of wind, in a incident that was filmed in a popular vehicle recording.
Aircraft services in and out of the city have been suspended as a result of the weather, whereas some roads and libraries are not operating.
Simultaneously Canterbury officials have declared a crisis declaration, to facilitate disaster response efforts.
Strike Action Alongside Harsh Weather
These intense gusts on Thursday come as numerous of teachers, doctors and other public workers take part in what has been termed a "mega strike", calling for higher wages and enhanced employment terms.
Yet the severe conditions has forced them to change various scheduled activities, with some outdoor rallies moved indoors or called off.
Similar gusts are affecting Australia, ushering in a period of extreme heat to the country's outback.
Authorities have issued flame prohibitions for concern about forest fires.