Severe winds reaching velocities of up to 155km/h (96mph) have left approximately 90,000 properties lacking electricity and led agencies to cancel in excess of 100 aircraft departures, according to regional news sources.
These gusts are impacting the entire South Island and southern parts of the North Island, per the national weather agency.
New Zealand authorities have issued uncommon high-level wind alerts - the most severe warning - in key areas encompassing these major districts.
People have been urged to remain inside, avoid travel, and make arrangements for more utility disruptions.
Broad Impact and Crisis Response
This outage appears to be affecting households mostly in the southern region, although authorities state that the electricity supply was being slowly brought back.
Regional news have reported that in various locations structures have suffered roof damage, and utility poles and vegetation have been brought down by the winds.
Within the capital, a man was fatally injured after being impacted by a wooden fragment at a well-known hiking path on Tuesday.
Also in the capital, a woman was pushed toward approaching vehicles on a road by a strong gust of wind, in a event that was filmed in a popular vehicle recording.
Flights to and from the city have been cancelled because of the weather, whereas various routes and public facilities are also closed.
At the same time local leaders have declared a emergency situation, to support recovery activities.
Strike Action Amid Harsh Weather
These intense gusts on Thursday occur while numerous of educators, medical professionals and government employees take part in what has been termed a "major walkout", demanding higher wages and enhanced employment terms.
But the severe conditions has compelled them to alter various scheduled activities, with some outdoor rallies moved indoors or called off.
Like conditions are affecting the neighboring country, ushering in a period of extreme heat to the remote areas.
Officials have declared flame prohibitions for concern about wildfires.