Severe gales attaining speeds of up to 155km/h (96mph) have caused around 90,000 properties lacking electricity and forced officials to cancel over 100 flights, based on local media.
These gusts are affecting the whole South Island and southern parts of the northern region, as stated by the country's meteorological service.
Officials in New Zealand have released rare red wind warnings - the top caution category - in key areas encompassing Wellington and Canterbury.
People have been encouraged to avoid going outside, avoid travel, and prepare for more power and communication outages.
Widespread Destruction and Emergency Response
The power cut seems to be impacting households predominantly in the southern region, while authorities say that the electricity supply was being gradually reinstated.
Domestic outlets have indicated that in various locations roofs have been ripped off houses, whereas utility poles and vegetation have been knocked down by the winds.
In Wellington, a individual was fatally injured after being hit by a tree branch at a frequent walking route on Tuesday.
Also in the capital, a female was blown onto approaching vehicles on a thoroughfare by a powerful blast, in a event that was recorded in a popular vehicle recording.
Aircraft services entering and leaving the city have been suspended because of the winds, while various routes and public facilities are shut down.
Meanwhile Canterbury officials have declared a crisis declaration, to support emergency management operations.
Strike Action Amid Severe Conditions
The wild winds on this day occur while numerous of educators, medical professionals and government employees take part in what has been termed a "major walkout", demanding better pay and working conditions.
However the intense climate has compelled them to modify some of their plans, with some outdoor rallies relocated inside or abandoned.
Comparable winds are also sweeping the nearby nation, ushering in a heatwave to the nation's interior regions.
Authorities have issued burning restrictions for concern about wildfires.
