Intense gusts reaching velocities of up to 155km/h (96mph) have caused around 90,000 households lacking electricity and led agencies to halt over 100 flights, as reported by local media.
These gusts are influencing the complete South Island and southern parts of the North Island, per the country's meteorological service.
The nation's agencies have announced rare severe gust advisories - the most severe warning - in key areas such as Wellington and Canterbury.
People have been urged to remain inside, stay off roads, and get ready for additional utility disruptions.
Widespread Damage and Crisis Measures
The power cut seems to be impacting households predominantly in the South Island, although officials say that power was being restored progressively.
Domestic outlets have reported that in some places structures have suffered roof damage, and power lines and trees have been brought down by the gusts.
Within the capital, a individual was lost his life after being hit by a tree branch at a popular trail walking spot on Tuesday.
Additionally in the city, a female was blown onto oncoming traffic on a thoroughfare by a strong gust of wind, in a moment that was recorded in a viral dashcam video.
Flights to and from the metropolis have been suspended due to the gusts, and certain highways and community centers are shut down.
Simultaneously authorities in Canterbury have declared a emergency situation, to facilitate recovery activities.
Work Stoppages During Severe Weather
The wild winds on this day occur while many of school staff, physicians and civil servants take part in what has been called a "mega strike", requesting higher wages and enhanced employment terms.
However the severe conditions has pressured them to modify certain arrangements, with some outdoor rallies relocated inside or cancelled.
Similar gusts are affecting the neighboring country, ushering in a period of extreme heat to the remote areas.
Authorities have declared burning restrictions for fear of wildfires.