Severe winds reaching velocities of up to 155km/h (96mph) have left nearly 90,000 properties experiencing outages and compelled officials to call off over 100 aircraft departures, according to regional news sources.
The gales are influencing the complete South Island and southern sections of the northern region, according to the country's meteorological service.
New Zealand authorities have announced infrequent high-level wind alerts - the top caution category - in key areas including Wellington and Canterbury.
People have been urged to avoid going outside, avoid travel, and make arrangements for more electricity and network failures.
The electricity loss appears to be affecting households mainly in the South Island, while authorities report that the electricity supply was being gradually reinstated.
Local media have stated that in some places homes have lost their roofs, and trees and electricity poles have been brought down by the gales.
In Wellington, a individual was fatally injured after being impacted by a tree branch at a popular trail walking spot on Tuesday.
Meanwhile in Wellington, a female was pushed toward moving cars on a thoroughfare by a intensive burst, in a moment that was filmed in a viral dashcam video.
Aircraft services to and from the city have been halted as a result of the winds, whereas some roads and libraries are also closed.
Simultaneously Canterbury officials have issued a crisis declaration, to facilitate disaster response efforts.
These intense gusts on Thursday coincide with tens of thousands of teachers, doctors and other public workers take part in what has been termed a "significant labor action", requesting improved salaries and workplace environments.
However the severe conditions has forced them to modify certain arrangements, with various open-air gatherings shifted to interior venues or abandoned.
Comparable winds are affecting Australia, ushering in a high-temperature event to the country's outback.
Authorities have announced fire bans for apprehension regarding forest fires.