Intense gales attaining speeds of approximately 155km/h (96mph) have resulted in around 90,000 properties without power and led authorities to cancel more than 100 aircraft departures, according to domestic outlets.
The gales are affecting the complete southern region and southern sections of the North Island, according to the weather forecasting body.
The nation's agencies have issued uncommon red wind warnings - the highest alert level - in central regions such as these major districts.
Residents have been encouraged to stay indoors, refrain from journeys, and get ready for additional power and communication outages.
Broad Impact and Emergency Response
This outage is primarily influencing residences mostly in the South Island, though authorities say that power was being gradually reinstated.
Domestic outlets have indicated that in some places roofs have been ripped off houses, whereas power lines and trees have been knocked down by the gales.
Across Wellington, a person was killed after being struck by a tree branch at a well-known hiking path on earlier this week.
Also in the capital, a female was blown onto oncoming traffic on a road by a strong gust of wind, in a moment that was captured in a popular vehicle recording.
Flights entering and leaving the city have been suspended because of the winds, whereas certain highways and community centers are shut down.
Meanwhile local leaders have declared a crisis declaration, to facilitate recovery activities.
Strike Action Amid Harsh Weather
The powerful gales on this day come as numerous of educators, medical professionals and government employees are participating in what has been called a "mega strike", requesting improved salaries and workplace environments.
Yet the severe conditions has forced them to alter certain arrangements, with some outdoor rallies moved indoors or called off.
Like conditions are impacting Australia, ushering in a period of extreme heat to the country's outback.
Authorities have issued flame prohibitions for apprehension regarding wildfires.
