Severe winds reaching velocities of up to 155km/h (96mph) have left around 90,000 households lacking electricity and forced authorities to call off in excess of 100 flights, based on local media.
The winds are affecting the whole South Island and southern parts of the northern region, as stated by the country's meteorological service.
New Zealand authorities have announced infrequent severe gust advisories - the highest alert level - in core zones encompassing these major districts.
Residents have been advised to remain inside, avoid travel, and prepare for more utility disruptions.
Widespread Impact and Emergency Response
The electricity loss appears to be affecting homes mainly in the southern region, although authorities report that power was being slowly brought back.
Local media have stated that in certain areas roofs have been ripped off houses, and utility poles and vegetation have been brought down by the gusts.
In Wellington, a person was fatally injured after being hit by a wooden fragment at a well-known hiking path on earlier this week.
Also in the capital, a individual was blown onto approaching vehicles on a street by a powerful blast, in a incident that was recorded in a widely shared car camera footage.
Aircraft services to and from the metropolis have been cancelled as a result of the gusts, while some roads and libraries are not operating.
At the same time Canterbury officials have announced a crisis declaration, to facilitate disaster response efforts.
Strike Action Amid Extreme Conditions
These intense gusts on this day coincide with numerous of teachers, doctors and other public workers are participating in what has been termed a "mega strike", demanding improved salaries and workplace environments.
However the extreme weather has forced them to change certain arrangements, with some outdoor rallies moved indoors or called off.
Comparable winds are impacting the neighboring country, ushering in a heatwave to the nation's interior regions.
Authorities have declared fire bans for apprehension regarding bushfires.
