Powerful gusts attaining speeds of as high as 155km/h (96mph) have resulted in approximately 90,000 households lacking electricity and led authorities to halt more than 100 aircraft departures, based on local media.
These gusts are affecting the complete South Island and southern parts of the North Island, per the weather forecasting body.
The nation's agencies have announced uncommon severe gust advisories - the highest alert level - in central regions encompassing Wellington and Canterbury.
People have been urged to remain inside, stay off roads, and get ready for more electricity and network failures.
Broad Damage and Crisis Measures
The electricity loss appears to be affecting residences predominantly in the South Island, although authorities say that energy was being gradually reinstated.
Regional news have reported that in various locations homes have lost their roofs, while utility poles and vegetation have been brought down by the winds.
In Wellington, a individual was killed after being hit by a wooden fragment at a popular trail walking spot on earlier this week.
Also in the capital, a individual was pushed toward oncoming traffic on a thoroughfare by a powerful blast, in a event that was recorded in a viral dashcam video.
Flights entering and leaving the city have been cancelled because of the winds, whereas some roads and libraries are also closed.
Simultaneously authorities in Canterbury have issued a state of emergency, to support disaster response efforts.
Work Stoppages During Extreme Weather
The powerful gales on today coincide with many of teachers, doctors and other public workers take part in what has been termed a "mega strike", demanding higher wages and enhanced employment terms.
But the intense climate has forced them to modify some of their plans, with several external protests shifted to interior venues or called off.
Like conditions are affecting Australia, bringing a heatwave to the country's outback.
Authorities have declared fire bans for fear of wildfires.
