Powerful winds hitting speeds of approximately 155km/h (96mph) have resulted in nearly 90,000 households without power and led officials to call off in excess of 100 flights, according to domestic outlets.
The winds are impacting the entire South Island and lower areas of the northern region, as stated by the national weather agency.
Officials in New Zealand have issued uncommon high-level wind alerts - the top caution category - in core zones including Canterbury and Wellington.
Residents have been advised to avoid going outside, stay off roads, and get ready for more utility disruptions.
Extensive Impact and Crisis Measures
The power cut appears to be affecting homes predominantly in the southern region, though authorities state that the electricity supply was being restored progressively.
Local media have indicated that in some places homes have lost their roofs, whereas trees and electricity poles have been knocked down by the winds.
Within the capital, a man was fatally injured after being impacted by a tree branch at a popular trail walking spot on Tuesday.
Also in the capital, a female was swept into approaching vehicles on a road by a strong gust of wind, in a incident that was captured in a popular vehicle recording.
Flights in and out of the urban area have been suspended as a result of the gusts, while some roads and libraries are also closed.
At the same time authorities in Canterbury have issued a state of emergency, to support emergency management operations.
Work Stoppages Amid Extreme Conditions
The wild winds on Thursday coincide with numerous of teachers, doctors and other public workers are engaged in what has been termed a "significant labor action", requesting better pay and working conditions.
However the severe conditions has pressured them to modify various scheduled activities, with some outdoor rallies moved indoors or abandoned.
Comparable winds are impacting the neighboring country, ushering in a high-temperature event to the nation's interior regions.
Authorities have announced fire bans for fear of bushfires.
