Severe gusts reaching velocities of as high as 155km/h (96mph) have left nearly 90,000 properties without power and compelled agencies to cancel more than 100 flights, based on local media.
The gales are impacting the complete South Island and lower areas of the northern region, per the country's meteorological service.
The nation's agencies have announced infrequent severe gust advisories - the highest alert level - in central regions encompassing Canterbury and Wellington.
People have been urged to stay indoors, avoid travel, and make arrangements for further electricity and network failures.
Widespread Damage and Crisis Response
The power cut appears to be affecting households mostly in the South Island, though officials say that energy was being restored progressively.
Local media have reported that in some places structures have suffered roof damage, whereas utility poles and vegetation have been knocked down by the winds.
Within the capital, a individual was killed after being hit by a tree branch at a popular trail walking spot on Tuesday.
Meanwhile in Wellington, a woman was pushed toward approaching vehicles on a road by a powerful blast, in a event that was filmed in a popular vehicle recording.
Air travel to and from the metropolis have been suspended because of the gusts, whereas various routes and public facilities are shut down.
Simultaneously authorities in Canterbury have declared a state of emergency, to facilitate emergency management operations.
Strike Action Alongside Severe Conditions
The wild winds on this day coincide with numerous of teachers, doctors and other public workers take part in what has been described as a "mega strike", demanding better pay and working conditions.
However the severe conditions has pressured them to modify various scheduled activities, with some outdoor rallies relocated inside or called off.
Like conditions are affecting Australia, bringing a high-temperature event to the nation's interior regions.
Authorities have issued fire bans for fear of wildfires.
