Powerful gusts reaching velocities of up to 155km/h (96mph) have left approximately 90,000 properties without power and led officials to halt more than 100 air travel services, as reported by local media.
The gales are influencing the whole southern region and southern parts of the northern region, according to the weather forecasting body.
The nation's agencies have released uncommon severe gust advisories - the highest alert level - in central regions encompassing these major districts.
People have been advised to stay indoors, avoid travel, and prepare for additional utility disruptions.
Extensive Damage and Crisis Measures
The power cut appears to be affecting households predominantly in the southern region, while authorities state that energy was being gradually reinstated.
Regional news have indicated that in various locations structures have suffered roof damage, while trees and electricity poles have been brought down by the gales.
Within the capital, a individual was fatally injured after being hit by a falling limb at a popular trail walking spot on earlier this week.
Meanwhile in Wellington, a female was blown onto oncoming traffic on a thoroughfare by a intensive burst, in a incident that was captured in a popular vehicle recording.
Aircraft services entering and leaving the metropolis have been suspended because of the gusts, whereas various routes and public facilities are not operating.
Meanwhile local leaders have issued a state of emergency, to support recovery activities.
Strike Action During Extreme Weather
The wild winds on today come as many of educators, medical professionals and government employees are participating in what has been called a "significant labor action", demanding improved salaries and workplace environments.
But the severe conditions has forced them to alter various scheduled activities, with some outdoor rallies moved indoors or called off.
Similar gusts are also sweeping the neighboring country, causing a heatwave to the country's outback.
Officials have announced flame prohibitions for apprehension regarding forest fires.
