Severe gusts reaching velocities of as high as 155km/h (96mph) have resulted in around 90,000 properties lacking electricity and forced officials to cancel more than 100 flights, as reported by local media.
The gales are influencing the whole South Island and southern parts of the northern region, according to the country's meteorological service.
Officials in New Zealand have issued infrequent high-level wind alerts - the most severe warning - in key areas encompassing Canterbury and Wellington.
Locals have been advised to remain inside, avoid travel, and get ready for more utility disruptions.
Broad Impact and Crisis Measures
The power cut appears to be affecting residences mostly in the southern region, although officials state that the electricity supply was being restored progressively.
Regional news have indicated that in certain areas homes have lost their roofs, while utility poles and vegetation have been brought down by the gales.
In Wellington, a person was killed after being hit by a tree branch at a well-known hiking path on Tuesday.
Meanwhile in Wellington, a female was blown onto oncoming traffic on a street by a intensive burst, in a incident that was filmed in a viral dashcam video.
Aircraft services to and from the urban area have been halted due to the gusts, and certain highways and community centers are shut down.
Meanwhile authorities in Canterbury have declared a crisis declaration, to assist disaster response efforts.
Work Stoppages Alongside Severe Weather
The wild winds on today coincide with many of educators, medical professionals and government employees take part in what has been called a "major walkout", requesting higher wages and enhanced employment terms.
However the severe conditions has compelled them to modify certain arrangements, with several external protests moved indoors or called off.
Comparable winds are also sweeping Australia, causing a heatwave to the nation's interior regions.
Officials have issued fire bans for concern about bushfires.
