Intense gales hitting speeds of up to 155km/h (96mph) have resulted in around 90,000 properties without power and led authorities to cancel over 100 air travel services, according to domestic outlets.
The winds are influencing the complete southern region and lower areas of the North Island, as stated by the national weather agency.
The nation's agencies have announced rare severe gust advisories - the top caution category - in key areas such as these major districts.
Residents have been urged to remain inside, stay off roads, and make arrangements for more electricity and network failures.
Extensive Impact and Crisis Measures
This outage seems to be impacting households predominantly in the southern region, though agencies report that energy was being restored progressively.
Local media have stated that in some places structures have suffered roof damage, and utility poles and vegetation have been knocked down by the gusts.
Within the capital, a individual was killed after being hit by a wooden fragment at a frequent walking route on earlier this week.
Also in the capital, a woman was blown onto moving cars on a road by a powerful blast, in a moment that was captured in a popular vehicle recording.
Air travel entering and leaving the metropolis have been suspended due to the winds, while some roads and libraries are not operating.
At the same time Canterbury officials have announced a crisis declaration, to assist emergency management operations.
Strike Action Amid Harsh Weather
The wild winds on this day occur while tens of thousands of school staff, physicians and civil servants are participating in what has been called a "major walkout", calling for higher wages and enhanced employment terms.
However the extreme weather has pressured them to alter certain arrangements, with various open-air gatherings shifted to interior venues or called off.
Like conditions are impacting the neighboring country, bringing a heatwave to the remote areas.
Authorities have issued flame prohibitions for fear of forest fires.
