Intense winds hitting velocities of as high as 155km/h (96mph) have left around 90,000 properties without power and led agencies to call off over 100 air travel services, based on regional news sources.
These gusts are impacting the complete southern region and southern parts of the North Island, according to the national weather agency.
The nation's agencies have issued infrequent red wind warnings - the most severe warning - in key areas such as these major districts.
Locals have been advised to remain inside, avoid travel, and make arrangements for further electricity and network failures.
Extensive Destruction and Emergency Response
The electricity loss appears to be affecting residences mainly in the South Island, while authorities report that the electricity supply was being slowly brought back.
Local media have indicated that in certain areas structures have suffered roof damage, while power lines and trees have been toppled by the winds.
In Wellington, a person was fatally injured after being hit by a wooden fragment at a well-known hiking path on Tuesday.
Meanwhile in Wellington, a woman was blown onto oncoming traffic on a street by a powerful blast, in a event that was filmed in a popular vehicle recording.
Air travel entering and leaving the city have been halted due to the winds, and various routes and public facilities are also closed.
Meanwhile authorities in Canterbury have announced a emergency situation, to assist disaster response efforts.
Strike Action Alongside Harsh Conditions
The wild winds on Thursday coincide with numerous of school staff, physicians and civil servants are participating in what has been termed a "major walkout", requesting better pay and working conditions.
However the intense climate has pressured them to modify some of their plans, with several external protests relocated inside or abandoned.
Similar gusts are impacting the nearby nation, ushering in a high-temperature event to the country's outback.
Officials have issued burning restrictions for apprehension regarding wildfires.
