Severe gales attaining speeds of up to 155km/h (96mph) have resulted in approximately 90,000 properties without power and forced officials to call off over 100 aircraft departures, as reported by local media.
These gusts are affecting the entire South Island and southern parts of the North Island, as stated by the weather forecasting body.
The nation's agencies have announced infrequent severe gust advisories - the top caution category - in central regions such as Canterbury and Wellington.
Locals have been encouraged to avoid going outside, stay off roads, and make arrangements for more electricity and network failures.
Widespread Damage and Crisis Response
The power cut appears to be affecting households predominantly in the southern region, though agencies say that power was being slowly brought back.
Regional news have stated that in some places structures have suffered roof damage, and utility poles and vegetation have been toppled by the gales.
In Wellington, a individual was killed after being hit by a tree branch at a well-known hiking path on Tuesday.
Additionally in the city, a individual was pushed toward moving cars on a street by a intensive burst, in a moment that was recorded in a viral dashcam video.
Aircraft services in and out of the city have been halted due to the gusts, while certain highways and community centers are shut down.
Meanwhile Canterbury officials have announced a emergency situation, to facilitate emergency management operations.
Labor Protests During Harsh Weather
The powerful gales on Thursday occur while numerous of teachers, doctors and other public workers are engaged in what has been described as a "mega strike", calling for better pay and working conditions.
However the extreme weather has forced them to modify various scheduled activities, with various open-air gatherings relocated inside or called off.
Similar gusts are affecting Australia, ushering in a period of extreme heat to the remote areas.
Officials have announced fire bans for fear of forest fires.