Powerful gusts attaining velocities of up to 155km/h (96mph) have left nearly 90,000 households lacking electricity and compelled agencies to call off in excess of 100 air travel services, according to local media.
These gusts are affecting the complete South Island and southern sections of the North Island, per the weather forecasting body.
New Zealand authorities have released rare severe gust advisories - the top caution category - in key areas including these major districts.
Locals have been advised to stay indoors, avoid travel, and prepare for additional utility disruptions.
Widespread Impact and Emergency Response
The electricity loss appears to be affecting households predominantly in the southern region, while authorities report that energy was being slowly brought back.
Local media have reported that in various locations homes have lost their roofs, while power lines and trees have been knocked down by the winds.
Within the capital, a person was fatally injured after being hit by a tree branch at a well-known hiking path on earlier this week.
Additionally in the city, a female was swept into oncoming traffic on a street by a strong gust of wind, in a event that was filmed in a popular vehicle recording.
Air travel in and out of the urban area have been suspended due to the gusts, while certain highways and community centers are shut down.
Meanwhile Canterbury officials have declared a state of emergency, to support emergency management operations.
Work Stoppages During Harsh Conditions
The wild winds on today come as many of educators, medical professionals and government employees are participating in what has been termed a "mega strike", calling for improved salaries and workplace environments.
However the severe conditions has compelled them to alter some of their plans, with various open-air gatherings shifted to interior venues or abandoned.
Similar gusts are impacting the neighboring country, ushering in a high-temperature event to the nation's interior regions.
Authorities have issued burning restrictions for concern about wildfires.