Severe gales hitting speeds of up to 155km/h (96mph) have resulted in around 90,000 households lacking electricity and compelled officials to halt in excess of 100 flights, according to domestic outlets.
The winds are affecting the whole southern region and southern sections of the northern region, according to the weather forecasting body.
The nation's agencies have announced infrequent severe gust advisories - the highest alert level - in core zones including Canterbury and Wellington.
Residents have been encouraged to avoid going outside, avoid travel, and get ready for further power and communication outages.
Widespread Damage and Crisis Measures
The power cut is primarily influencing residences mainly in the South Island, although officials say that power was being restored progressively.
Regional news have reported that in various locations structures have suffered roof damage, while power lines and trees have been knocked down by the winds.
Within the capital, a man was lost his life after being impacted by a falling limb at a frequent walking route on Tuesday.
Meanwhile in Wellington, a individual was pushed toward oncoming traffic on a road by a strong gust of wind, in a event that was captured in a viral dashcam video.
Flights in and out of the urban area have been halted due to the winds, and some roads and libraries are also closed.
Meanwhile authorities in Canterbury have announced a emergency situation, to facilitate disaster response efforts.
Work Stoppages Alongside Harsh Conditions
These intense gusts on today occur while tens of thousands of school staff, physicians and civil servants are participating in what has been called a "significant labor action", calling for improved salaries and workplace environments.
But the extreme weather has forced them to modify some of their plans, with various open-air gatherings shifted to interior venues or abandoned.
Similar gusts are also sweeping the neighboring country, causing a period of extreme heat to the country's outback.
Agencies have issued flame prohibitions for fear of wildfires.
