Severe winds reaching speeds of up to 155km/h (96mph) have resulted in approximately 90,000 properties without power and led authorities to call off more than 100 aircraft departures, as reported by local media.
The gales are impacting the complete South Island and lower areas of the northern region, according to the weather forecasting body.
New Zealand authorities have announced infrequent high-level wind alerts - the highest alert level - in central regions encompassing these major districts.
People have been encouraged to remain inside, stay off roads, and make arrangements for further electricity and network failures.
Broad Destruction and Crisis Measures
The power cut appears to be affecting residences mostly in the southern region, although authorities report that energy was being gradually reinstated.
Domestic outlets have reported that in various locations structures have suffered roof damage, whereas utility poles and vegetation have been brought down by the gusts.
Within the capital, a person was killed after being hit by a falling limb at a frequent walking route on Tuesday.
Additionally in the city, a individual was swept into approaching vehicles on a thoroughfare by a powerful blast, in a moment that was filmed in a widely shared car camera footage.
Aircraft services in and out of the urban area have been halted due to the weather, while certain highways and community centers are not operating.
Simultaneously local leaders have announced a state of emergency, to assist disaster response efforts.
Strike Action During Harsh Weather
The powerful gales on this day occur while many of school staff, physicians and civil servants take part in what has been termed a "mega strike", requesting better pay and working conditions.
However the intense climate has pressured them to alter various scheduled activities, with several external protests shifted to interior venues or called off.
Like conditions are affecting the nearby nation, causing a heatwave to the country's outback.
Authorities have declared burning restrictions for apprehension regarding bushfires.