Severe gales attaining speeds of approximately 155km/h (96mph) have left around 90,000 properties lacking electricity and forced authorities to cancel more than 100 air travel services, based on domestic outlets.
These gusts are impacting the whole southern region and lower areas of the North Island, according to the national weather agency.
The nation's agencies have released rare severe gust advisories - the most severe warning - in core zones such as Canterbury and Wellington.
Residents have been urged to stay indoors, refrain from journeys, and make arrangements for more power and communication outages.
Extensive Damage and Emergency Measures
The electricity loss seems to be impacting households predominantly in the South Island, while agencies report that energy was being gradually reinstated.
Local media have reported that in certain areas homes have lost their roofs, and utility poles and vegetation have been toppled by the gales.
Within the capital, a man was killed after being hit by a tree branch at a popular trail walking spot on Tuesday.
Also in the capital, a woman was swept into oncoming traffic on a thoroughfare by a strong gust of wind, in a event that was captured in a popular vehicle recording.
Air travel entering and leaving the metropolis have been suspended due to the winds, while certain highways and community centers are also closed.
At the same time Canterbury officials have declared a emergency situation, to assist recovery activities.
Strike Action During Harsh Weather
The powerful gales on today coincide with tens of thousands of educators, medical professionals and government employees take part in what has been described as a "major walkout", calling for better pay and working conditions.
However the severe conditions has pressured them to alter certain arrangements, with some outdoor rallies moved indoors or cancelled.
Like conditions are affecting the neighboring country, causing a heatwave to the remote areas.
Officials have issued burning restrictions for fear of bushfires.
