Intense gusts hitting speeds of as high as 155km/h (96mph) have caused approximately 90,000 properties without power and compelled agencies to halt more than 100 flights, as reported by domestic outlets.
The gales are affecting the complete South Island and southern parts of the northern region, per the national weather agency.
Officials in New Zealand have issued uncommon severe gust advisories - the highest alert level - in key areas such as Wellington and Canterbury.
Residents have been urged to remain inside, stay off roads, and prepare for more utility disruptions.
Extensive Destruction and Crisis Measures
The power cut appears to be affecting homes predominantly in the South Island, although officials state that energy was being restored progressively.
Local media have reported that in some places homes have lost their roofs, and utility poles and vegetation have been brought down by the winds.
In Wellington, a individual was killed after being hit by a tree branch at a frequent walking route on earlier this week.
Meanwhile in Wellington, a individual was swept into approaching vehicles on a thoroughfare by a intensive burst, in a event that was recorded in a viral dashcam video.
Aircraft services in and out of the urban area have been halted due to the weather, while various routes and public facilities are not operating.
At the same time authorities in Canterbury have announced a state of emergency, to assist recovery activities.
Labor Protests Amid Severe Weather
These intense gusts on this day occur while numerous of teachers, doctors and other public workers are engaged in what has been described as a "significant labor action", calling for better pay and working conditions.
Yet the intense climate has pressured them to alter certain arrangements, with several external protests shifted to interior venues or abandoned.
Similar gusts are affecting Australia, ushering in a high-temperature event to the nation's interior regions.
Officials have declared flame prohibitions for fear of bushfires.
