Severe winds attaining velocities of up to 155km/h (96mph) have left approximately 90,000 homes lacking electricity and forced officials to halt in excess of 100 aircraft departures, as reported by domestic outlets.
The gales are impacting the entire southern region and lower areas of the North Island, as stated by the weather forecasting body.
The nation's agencies have issued rare red wind warnings - the highest alert level - in central regions including Canterbury and Wellington.
People have been advised to remain inside, stay off roads, and make arrangements for additional utility disruptions.
Widespread Destruction and Crisis Measures
The power cut seems to be impacting residences predominantly in the South Island, though officials say that the electricity supply was being gradually reinstated.
Local media have indicated that in some places homes have lost their roofs, whereas utility poles and vegetation have been toppled by the gales.
Within the capital, a person was fatally injured after being impacted by a tree branch at a popular trail walking spot on Tuesday.
Meanwhile in Wellington, a woman was pushed toward moving cars on a street by a intensive burst, in a moment that was captured in a viral dashcam video.
Air travel in and out of the city have been halted due to the gusts, whereas certain highways and community centers are shut down.
At the same time Canterbury officials have declared a emergency situation, to assist emergency management operations.
Labor Protests Alongside Harsh Conditions
These intense gusts on Thursday come as numerous of school staff, physicians and civil servants are engaged in what has been termed a "significant labor action", requesting improved salaries and workplace environments.
However the extreme weather has forced them to alter various scheduled activities, with several external protests relocated inside or cancelled.
Like conditions are also sweeping the nearby nation, ushering in a high-temperature event to the nation's interior regions.
Officials have announced flame prohibitions for apprehension regarding wildfires.