Powerful gales attaining velocities of as high as 155km/h (96mph) have caused nearly 90,000 homes lacking electricity and forced officials to call off over 100 flights, as reported by local media.
These gusts are affecting the complete South Island and southern parts of the northern region, according to the weather forecasting body.
Officials in New Zealand have issued rare high-level wind alerts - the most severe warning - in central regions encompassing these major districts.
Locals have been advised to avoid going outside, stay off roads, and make arrangements for further utility disruptions.
Broad Damage and Crisis Response
The electricity loss appears to be affecting homes mostly in the South Island, though officials report that the electricity supply was being gradually reinstated.
Domestic outlets have reported that in some places structures have suffered roof damage, while power lines and trees have been toppled by the gusts.
Within the capital, a individual was killed after being struck by a wooden fragment at a frequent walking route on earlier this week.
Additionally in the city, a woman was blown onto oncoming traffic on a street by a intensive burst, in a moment that was captured in a viral dashcam video.
Aircraft services to and from the city have been cancelled as a result of the winds, and some roads and libraries are not operating.
Meanwhile Canterbury officials have declared a state of emergency, to assist emergency management operations.
Work Stoppages Alongside Harsh Conditions
The powerful gales on Thursday occur while numerous of teachers, doctors and other public workers are participating in what has been described as a "major walkout", demanding improved salaries and workplace environments.
However the intense climate has forced them to modify some of their plans, with several external protests relocated inside or called off.
Comparable winds are impacting Australia, bringing a high-temperature event to the remote areas.
Authorities have announced flame prohibitions for fear of bushfires.