Intense gusts hitting speeds of as high as 155km/h (96mph) have caused nearly 90,000 households without power and compelled officials to call off in excess of 100 aircraft departures, according to domestic outlets.
The winds are impacting the complete South Island and southern parts of the northern region, as stated by the national weather agency.
The nation's agencies have issued uncommon red wind warnings - the highest alert level - in key areas including these major districts.
Locals have been advised to stay indoors, refrain from journeys, and make arrangements for further utility disruptions.
Extensive Impact and Crisis Measures
The power cut seems to be impacting residences mainly in the South Island, although authorities say that power was being gradually reinstated.
Regional news have stated that in some places roofs have been ripped off houses, and power lines and trees have been brought down by the gusts.
Across Wellington, a man was fatally injured after being impacted by a falling limb at a well-known hiking path on earlier this week.
Also in the capital, a female was swept into approaching vehicles on a street by a intensive burst, in a moment that was filmed in a viral dashcam video.
Flights to and from the city have been halted due to the winds, whereas various routes and public facilities are also closed.
Meanwhile authorities in Canterbury have declared a emergency situation, to support recovery activities.
Labor Protests During Severe Weather
These intense gusts on today coincide with tens of thousands of school staff, physicians and civil servants are engaged in what has been called a "significant labor action", calling for improved salaries and workplace environments.
However the extreme weather has forced them to modify some of their plans, with several external protests shifted to interior venues or cancelled.
Like conditions are impacting the nearby nation, causing a high-temperature event to the country's outback.
Officials have declared fire bans for apprehension regarding bushfires.