Severe gales hitting speeds of approximately 155km/h (96mph) have resulted in approximately 90,000 households without power and forced officials to cancel more than 100 air travel services, according to local media.
The winds are affecting the whole southern region and lower areas of the North Island, according to the country's meteorological service.
New Zealand authorities have issued infrequent severe gust advisories - the highest alert level - in core zones such as Canterbury and Wellington.
Locals have been advised to remain inside, stay off roads, and prepare for more electricity and network failures.
Broad Damage and Emergency Measures
This outage appears to be affecting households mainly in the southern region, though authorities say that power was being slowly brought back.
Local media have stated that in certain areas structures have suffered roof damage, while power lines and trees have been toppled by the gales.
Within the capital, a individual was fatally injured after being hit by a tree branch at a popular trail walking spot on Tuesday.
Also in the capital, a female was blown onto moving cars on a street by a strong gust of wind, in a event that was filmed in a viral dashcam video.
Air travel in and out of the city have been halted as a result of the weather, and some roads and libraries are shut down.
Meanwhile local leaders have announced a emergency situation, to assist emergency management operations.
Strike Action Alongside Severe Weather
The wild winds on this day come as many of school staff, physicians and civil servants take part in what has been described as a "mega strike", demanding improved salaries and workplace environments.
But the extreme weather has compelled them to change various scheduled activities, with several external protests shifted to interior venues or abandoned.
Comparable winds are also sweeping Australia, ushering in a high-temperature event to the country's outback.
Authorities have declared burning restrictions for apprehension regarding wildfires.
