Intense gales reaching speeds of up to 155km/h (96mph) have caused nearly 90,000 homes lacking electricity and compelled authorities to call off in excess of 100 aircraft departures, based on local media.
The gales are impacting the entire southern region and southern sections of the northern region, according to the country's meteorological service.
The nation's agencies have issued infrequent red wind warnings - the top caution category - in key areas including Wellington and Canterbury.
Locals have been urged to avoid going outside, refrain from journeys, and get ready for additional power and communication outages.
Widespread Impact and Crisis Response
This outage is primarily influencing homes mainly in the South Island, while authorities report that energy was being gradually reinstated.
Regional news have indicated that in some places roofs have been ripped off houses, and utility poles and vegetation have been brought down by the gales.
In Wellington, a man was lost his life after being impacted by a falling limb at a popular trail walking spot on Tuesday.
Meanwhile in Wellington, a woman was swept into approaching vehicles on a street by a strong gust of wind, in a event that was filmed in a viral dashcam video.
Flights entering and leaving the metropolis have been suspended because of the gusts, whereas various routes and public facilities are shut down.
Meanwhile authorities in Canterbury have announced a state of emergency, to support recovery activities.
Strike Action Amid Harsh Conditions
The wild winds on today come as numerous of teachers, doctors and other public workers are engaged in what has been termed a "mega strike", requesting higher wages and enhanced employment terms.
But the extreme weather has pressured them to alter some of their plans, with some outdoor rallies shifted to interior venues or called off.
Comparable winds are also sweeping Australia, causing a period of extreme heat to the remote areas.
Officials have announced fire bans for concern about forest fires.