Severe gales reaching speeds of up to 155km/h (96mph) have caused nearly 90,000 households experiencing outages and led authorities to halt over 100 flights, based on regional news sources.
These gusts are affecting the complete southern region and lower areas of the North Island, according to the weather forecasting body.
The nation's agencies have announced uncommon high-level wind alerts - the most severe warning - in core zones encompassing Canterbury and Wellington.
Residents have been urged to remain inside, refrain from journeys, and make arrangements for more power and communication outages.
Broad Destruction and Emergency Response
The power cut appears to be affecting households predominantly in the southern region, though officials state that the electricity supply was being gradually reinstated.
Local media have indicated that in some places homes have lost their roofs, while power lines and trees have been knocked down by the gales.
Across Wellington, a person was fatally injured after being struck by a wooden fragment at a frequent walking route on Tuesday.
Also in the capital, a female was pushed toward moving cars on a road by a intensive burst, in a event that was recorded in a popular vehicle recording.
Aircraft services to and from the urban area have been halted because of the gusts, while various routes and public facilities are not operating.
Simultaneously authorities in Canterbury have issued a state of emergency, to support recovery activities.
Labor Protests Amid Severe Conditions
These intense gusts on this day occur while numerous of teachers, doctors and other public workers are engaged in what has been termed a "major walkout", requesting higher wages and enhanced employment terms.
Yet the intense climate has compelled them to alter some of their plans, with several external protests shifted to interior venues or abandoned.
Comparable winds are also sweeping the neighboring country, causing a high-temperature event to the remote areas.
Agencies have announced burning restrictions for concern about forest fires.