Intense winds hitting velocities of approximately 155km/h (96mph) have left around 90,000 homes without power and compelled authorities to halt over 100 flights, based on regional news sources.
The winds are influencing the entire South Island and southern sections of the northern region, as stated by the weather forecasting body.
The nation's agencies have announced uncommon severe gust advisories - the highest alert level - in core zones including Canterbury and Wellington.
People have been advised to stay indoors, avoid travel, and get ready for further utility disruptions.
Widespread Damage and Emergency Measures
This outage appears to be affecting homes mainly in the South Island, while agencies say that power was being slowly brought back.
Regional news have indicated that in certain areas homes have lost their roofs, and power lines and trees have been knocked down by the gusts.
Within the capital, a person was killed after being struck by a wooden fragment at a popular trail walking spot on earlier this week.
Also in the capital, a female was pushed toward approaching vehicles on a street by a strong gust of wind, in a incident that was recorded in a viral dashcam video.
Flights to and from the urban area have been halted as a result of the gusts, while various routes and public facilities are shut down.
Simultaneously authorities in Canterbury have declared a state of emergency, to support recovery activities.
Labor Protests Alongside Harsh Weather
The powerful gales on today come as tens of thousands of educators, medical professionals and government employees take part in what has been called a "significant labor action", requesting improved salaries and workplace environments.
However the intense climate has pressured them to change certain arrangements, with some outdoor rallies relocated inside or abandoned.
Like conditions are affecting the nearby nation, bringing a period of extreme heat to the nation's interior regions.
Authorities have announced fire bans for concern about bushfires.
