Intense gales reaching velocities of up to 155km/h (96mph) have left nearly 90,000 properties lacking electricity and compelled agencies to cancel in excess of 100 aircraft departures, based on local media.
These gusts are affecting the complete South Island and southern sections of the northern region, as stated by the weather forecasting body.
Officials in New Zealand have announced rare high-level wind alerts - the highest alert level - in central regions including Canterbury and Wellington.
Locals have been urged to remain inside, stay off roads, and prepare for additional utility disruptions.
Widespread Damage and Crisis Measures
The power cut seems to be impacting residences predominantly in the South Island, while agencies state that power was being restored progressively.
Local media have reported that in various locations structures have suffered roof damage, whereas power lines and trees have been knocked down by the gusts.
Within the capital, a man was fatally injured after being hit by a tree branch at a well-known hiking path on Tuesday.
Also in the capital, a female was blown onto moving cars on a thoroughfare by a intensive burst, in a incident that was captured in a popular vehicle recording.
Aircraft services entering and leaving the urban area have been cancelled because of the gusts, whereas some roads and libraries are not operating.
Meanwhile authorities in Canterbury have declared a state of emergency, to assist emergency management operations.
Strike Action Amid Harsh Conditions
The wild winds on today occur while numerous of school staff, physicians and civil servants are engaged in what has been described as a "major walkout", requesting improved salaries and workplace environments.
Yet the extreme weather has compelled them to change certain arrangements, with several external protests moved indoors or cancelled.
Similar gusts are affecting Australia, ushering in a period of extreme heat to the country's outback.
Officials have issued burning restrictions for fear of forest fires.
