Intense gusts attaining speeds of approximately 155km/h (96mph) have left around 90,000 households experiencing outages and forced authorities to call off over 100 aircraft departures, according to regional news sources.
The winds are affecting the whole South Island and lower areas of the North Island, per the country's meteorological service.
The nation's agencies have released rare red wind warnings - the top caution category - in central regions such as Canterbury and Wellington.
Residents have been encouraged to remain inside, stay off roads, and make arrangements for further power and communication outages.
Broad Damage and Emergency Response
The electricity loss appears to be affecting residences mostly in the southern region, while authorities say that energy was being restored progressively.
Domestic outlets have stated that in certain areas roofs have been ripped off houses, and power lines and trees have been toppled by the winds.
In Wellington, a man was killed after being hit by a tree branch at a popular trail walking spot on earlier this week.
Meanwhile in Wellington, a woman was swept into approaching vehicles on a road by a intensive burst, in a moment that was filmed in a viral dashcam video.
Flights to and from the metropolis have been halted because of the weather, while various routes and public facilities are also closed.
Meanwhile local leaders have announced a crisis declaration, to facilitate recovery activities.
Labor Protests During Harsh Weather
These intense gusts on this day occur while tens of thousands of teachers, doctors and other public workers are engaged in what has been termed a "mega strike", requesting better pay and working conditions.
Yet the intense climate has forced them to modify some of their plans, with some outdoor rallies relocated inside or cancelled.
Like conditions are affecting the neighboring country, bringing a period of extreme heat to the remote areas.
Agencies have announced burning restrictions for concern about forest fires.
