Intense gusts attaining speeds of up to 155km/h (96mph) have left around 90,000 households without power and forced officials to cancel over 100 air travel services, based on domestic outlets.
These gusts are affecting the entire southern region and southern parts of the North Island, as stated by the weather forecasting body.
The nation's agencies have released infrequent severe gust advisories - the highest alert level - in core zones including Wellington and Canterbury.
Residents have been urged to avoid going outside, refrain from journeys, and get ready for additional utility disruptions.
Extensive Destruction and Crisis Measures
This outage appears to be affecting households mostly in the South Island, although agencies say that the electricity supply was being restored progressively.
Local media have reported that in various locations homes have lost their roofs, while power lines and trees have been toppled by the gusts.
In Wellington, a individual was killed after being impacted by a tree branch at a frequent walking route on Tuesday.
Meanwhile in Wellington, a woman was pushed toward approaching vehicles on a thoroughfare by a powerful blast, in a moment that was captured in a popular vehicle recording.
Air travel to and from the metropolis have been suspended as a result of the gusts, whereas some roads and libraries are not operating.
Meanwhile local leaders have declared a state of emergency, to support disaster response efforts.
Labor Protests During Extreme Weather
The powerful gales on this day occur while numerous of school staff, physicians and civil servants take part in what has been termed a "significant labor action", requesting higher wages and enhanced employment terms.
But the intense climate has compelled them to change certain arrangements, with various open-air gatherings shifted to interior venues or called off.
Like conditions are affecting the nearby nation, causing a period of extreme heat to the remote areas.
Authorities have declared burning restrictions for concern about wildfires.