Severe winds hitting speeds of up to 155km/h (96mph) have resulted in nearly 90,000 homes without power and led agencies to call off over 100 flights, based on local media.
The winds are affecting the complete South Island and lower areas of the North Island, as stated by the weather forecasting body.
The nation's agencies have issued infrequent high-level wind alerts - the top caution category - in key areas such as Wellington and Canterbury.
People have been encouraged to stay indoors, refrain from journeys, and prepare for additional electricity and network failures.
Extensive Destruction and Emergency Response
The electricity loss seems to be impacting homes mainly in the South Island, though officials report that energy was being slowly brought back.
Domestic outlets have stated that in certain areas roofs have been ripped off houses, whereas utility poles and vegetation have been toppled by the winds.
Within the capital, a man was killed after being struck by a falling limb at a frequent walking route on earlier this week.
Also in the capital, a individual was pushed toward approaching vehicles on a street by a powerful blast, in a moment that was recorded in a popular vehicle recording.
Flights to and from the city have been halted as a result of the weather, while some roads and libraries are also closed.
Meanwhile local leaders have issued a state of emergency, to support emergency management operations.
Work Stoppages Alongside Severe Conditions
These intense gusts on today coincide with numerous of teachers, doctors and other public workers are participating in what has been termed a "mega strike", calling for improved salaries and workplace environments.
Yet the intense climate has compelled them to change some of their plans, with some outdoor rallies shifted to interior venues or called off.
Similar gusts are impacting the neighboring country, ushering in a heatwave to the nation's interior regions.
Agencies have issued flame prohibitions for concern about wildfires.
