Intense winds hitting speeds of up to 155km/h (96mph) have left around 90,000 properties without power and led authorities to cancel more than 100 flights, as reported by domestic outlets.
These gusts are affecting the entire South Island and southern parts of the northern region, as stated by the national weather agency.
New Zealand authorities have released rare high-level wind alerts - the highest alert level - in central regions such as Canterbury and Wellington.
Residents have been encouraged to avoid going outside, refrain from journeys, and prepare for more utility disruptions.
Broad Impact and Crisis Measures
The power cut appears to be affecting homes mostly in the South Island, while agencies state that energy was being restored progressively.
Domestic outlets have stated that in some places homes have lost their roofs, and trees and electricity poles have been brought down by the gusts.
Across Wellington, a person was fatally injured after being hit by a tree branch at a frequent walking route on Tuesday.
Additionally in the city, a woman was pushed toward oncoming traffic on a road by a intensive burst, in a incident that was captured in a popular vehicle recording.
Flights to and from the metropolis have been halted because of the gusts, and various routes and public facilities are not operating.
At the same time Canterbury officials have issued a crisis declaration, to facilitate emergency management operations.
Work Stoppages Alongside Extreme Weather
The wild winds on Thursday coincide with many of school staff, physicians and civil servants are engaged in what has been termed a "significant labor action", calling for higher wages and enhanced employment terms.
But the intense climate has pressured them to alter various scheduled activities, with several external protests moved indoors or cancelled.
Comparable winds are affecting the nearby nation, causing a high-temperature event to the remote areas.
Agencies have announced fire bans for concern about forest fires.
