Severe winds attaining speeds of up to 155km/h (96mph) have left around 90,000 homes lacking electricity and forced officials to cancel more than 100 flights, based on domestic outlets.
The gales are affecting the whole South Island and lower areas of the North Island, per the country's meteorological service.
The nation's agencies have announced rare severe gust advisories - the most severe warning - in core zones such as Canterbury and Wellington.
Locals have been urged to remain inside, stay off roads, and prepare for further utility disruptions.
Widespread Impact and Emergency Response
This outage is primarily influencing homes mostly in the southern region, while officials state that energy was being restored progressively.
Local media have indicated that in certain areas homes have lost their roofs, while utility poles and vegetation have been toppled by the gusts.
Within the capital, a individual was killed after being impacted by a wooden fragment at a popular trail walking spot on Tuesday.
Meanwhile in Wellington, a female was blown onto oncoming traffic on a road by a strong gust of wind, in a incident that was recorded in a viral dashcam video.
Air travel in and out of the metropolis have been suspended due to the weather, whereas some roads and libraries are not operating.
Simultaneously local leaders have announced a emergency situation, to facilitate disaster response efforts.
Labor Protests Amid Harsh Conditions
These intense gusts on Thursday coincide with tens of thousands of school staff, physicians and civil servants are participating in what has been described as a "significant labor action", demanding improved salaries and workplace environments.
But the severe conditions has compelled them to alter various scheduled activities, with various open-air gatherings relocated inside or abandoned.
Similar gusts are affecting the neighboring country, causing a period of extreme heat to the country's outback.
Officials have issued fire bans for fear of wildfires.
