Powerful gales hitting velocities of as high as 155km/h (96mph) have left nearly 90,000 properties lacking electricity and forced agencies to halt more than 100 aircraft departures, according to domestic outlets.
These gusts are affecting the whole southern region and lower areas of the northern region, as stated by the country's meteorological service.
Officials in New Zealand have issued rare severe gust advisories - the most severe warning - in central regions such as Wellington and Canterbury.
Residents have been advised to remain inside, avoid travel, and get ready for additional utility disruptions.
Broad Destruction and Crisis Measures
The power cut is primarily influencing households predominantly in the southern region, while officials report that power was being gradually reinstated.
Domestic outlets have reported that in certain areas structures have suffered roof damage, and utility poles and vegetation have been brought down by the gusts.
Within the capital, a man was killed after being struck by a falling limb at a well-known hiking path on Tuesday.
Also in the capital, a individual was swept into oncoming traffic on a street by a strong gust of wind, in a moment that was filmed in a widely shared car camera footage.
Aircraft services to and from the city have been suspended due to the weather, whereas certain highways and community centers are also closed.
Meanwhile authorities in Canterbury have announced a crisis declaration, to assist disaster response efforts.
Labor Protests Amid Harsh Weather
The powerful gales on Thursday coincide with numerous of educators, medical professionals and government employees take part in what has been termed a "mega strike", requesting better pay and working conditions.
However the intense climate has compelled them to modify various scheduled activities, with some outdoor rallies moved indoors or abandoned.
Comparable winds are also sweeping the nearby nation, bringing a period of extreme heat to the country's outback.
Officials have declared fire bans for fear of wildfires.
