Intense gusts hitting speeds of approximately 155km/h (96mph) have left approximately 90,000 properties without power and compelled authorities to halt in excess of 100 aircraft departures, as reported by local media.
The winds are affecting the complete South Island and southern sections of the northern region, according to the country's meteorological service.
Officials in New Zealand have released infrequent red wind warnings - the top caution category - in key areas including Canterbury and Wellington.
People have been advised to stay indoors, stay off roads, and prepare for more power and communication outages.
Widespread Damage and Emergency Measures
This outage seems to be impacting households mostly in the southern region, while agencies say that power was being gradually reinstated.
Domestic outlets have indicated that in various locations homes have lost their roofs, whereas utility poles and vegetation have been toppled by the winds.
In Wellington, a individual was fatally injured after being struck by a wooden fragment at a frequent walking route on Tuesday.
Additionally in the city, a individual was blown onto oncoming traffic on a road by a powerful blast, in a incident that was captured in a viral dashcam video.
Flights in and out of the urban area have been halted due to the weather, while certain highways and community centers are also closed.
Meanwhile local leaders have issued a state of emergency, to support emergency management operations.
Labor Protests Amid Harsh Conditions
These intense gusts on Thursday coincide with tens of thousands of teachers, doctors and other public workers are engaged in what has been called a "mega strike", requesting higher wages and enhanced employment terms.
But the intense climate has forced them to modify various scheduled activities, with some outdoor rallies shifted to interior venues or called off.
Like conditions are also sweeping Australia, bringing a period of extreme heat to the remote areas.
Officials have issued burning restrictions for fear of bushfires.
