Severe gales attaining velocities of as high as 155km/h (96mph) have left approximately 90,000 homes without power and compelled agencies to call off over 100 flights, according to local media.
The winds are influencing the whole South Island and southern sections of the North Island, according to the weather forecasting body.
The nation's agencies have issued rare severe gust advisories - the most severe warning - in key areas including these major districts.
People have been advised to stay indoors, stay off roads, and prepare for additional power and communication outages.
Extensive Impact and Crisis Measures
The electricity loss seems to be impacting residences mainly in the South Island, though agencies state that the electricity supply was being slowly brought back.
Domestic outlets have stated that in certain areas roofs have been ripped off houses, while trees and electricity poles have been knocked down by the winds.
Within the capital, a man was lost his life after being hit by a falling limb at a popular trail walking spot on earlier this week.
Also in the capital, a female was blown onto oncoming traffic on a thoroughfare by a powerful blast, in a incident that was captured in a popular vehicle recording.
Aircraft services to and from the metropolis have been cancelled as a result of the gusts, while some roads and libraries are also closed.
Meanwhile local leaders have issued a state of emergency, to facilitate emergency management operations.
Work Stoppages Alongside Extreme Conditions
These intense gusts on today come as tens of thousands of educators, medical professionals and government employees take part in what has been called a "mega strike", calling for better pay and working conditions.
Yet the severe conditions has pressured them to modify certain arrangements, with several external protests relocated inside or abandoned.
Similar gusts are affecting Australia, bringing a high-temperature event to the remote areas.
Authorities have announced flame prohibitions for fear of wildfires.
