Powerful winds hitting velocities of as high as 155km/h (96mph) have resulted in nearly 90,000 properties without power and led authorities to halt in excess of 100 flights, according to regional news sources.
The gales are affecting the entire southern region and southern parts of the northern region, per the weather forecasting body.
Officials in New Zealand have issued infrequent red wind warnings - the top caution category - in key areas such as Wellington and Canterbury.
Residents have been urged to stay indoors, refrain from journeys, and get ready for more electricity and network failures.
Widespread Damage and Crisis Response
The power cut seems to be impacting homes predominantly in the South Island, though agencies report that energy was being gradually reinstated.
Local media have stated that in various locations structures have suffered roof damage, whereas utility poles and vegetation have been toppled by the gales.
Within the capital, a individual was fatally injured after being impacted by a wooden fragment at a frequent walking route on Tuesday.
Meanwhile in Wellington, a woman was pushed toward oncoming traffic on a road by a intensive burst, in a incident that was filmed in a viral dashcam video.
Flights in and out of the city have been suspended as a result of the weather, while some roads and libraries are not operating.
Simultaneously Canterbury officials have issued a state of emergency, to assist emergency management operations.
Work Stoppages Alongside Extreme Weather
These intense gusts on this day coincide with numerous of teachers, doctors and other public workers take part in what has been termed a "major walkout", calling for higher wages and enhanced employment terms.
However the intense climate has pressured them to modify some of their plans, with various open-air gatherings shifted to interior venues or cancelled.
Similar gusts are affecting Australia, causing a period of extreme heat to the remote areas.
Authorities have declared flame prohibitions for apprehension regarding wildfires.