Intense gales hitting speeds of up to 155km/h (96mph) have left approximately 90,000 homes without power and led agencies to cancel more than 100 air travel services, as reported by local media.
These gusts are impacting the entire South Island and southern parts of the northern region, as stated by the weather forecasting body.
The nation's agencies have issued rare red wind warnings - the top caution category - in key areas such as these major districts.
Locals have been urged to stay indoors, avoid travel, and make arrangements for additional electricity and network failures.
Widespread Damage and Crisis Response
The power cut appears to be affecting homes predominantly in the southern region, although authorities say that power was being restored progressively.
Regional news have indicated that in certain areas structures have suffered roof damage, while utility poles and vegetation have been brought down by the gales.
Within the capital, a person was killed after being struck by a wooden fragment at a frequent walking route on Tuesday.
Meanwhile in Wellington, a female was pushed toward approaching vehicles on a street by a intensive burst, in a event that was filmed in a widely shared car camera footage.
Aircraft services in and out of the urban area have been halted because of the winds, and certain highways and community centers are not operating.
At the same time Canterbury officials have announced a state of emergency, to facilitate recovery activities.
Labor Protests During Extreme Weather
The wild winds on today come as tens of thousands of school staff, physicians and civil servants take part in what has been termed a "mega strike", demanding better pay and working conditions.
But the severe conditions has forced them to change certain arrangements, with various open-air gatherings relocated inside or abandoned.
Like conditions are affecting the neighboring country, bringing a period of extreme heat to the country's outback.
Agencies have declared burning restrictions for concern about bushfires.
