Severe gusts attaining speeds of up to 155km/h (96mph) have left nearly 90,000 homes lacking electricity and forced officials to cancel over 100 flights, based on domestic outlets.
The winds are affecting the entire South Island and lower areas of the North Island, according to the weather forecasting body.
The nation's agencies have announced rare red wind warnings - the most severe warning - in central regions encompassing Canterbury and Wellington.
Residents have been encouraged to stay indoors, stay off roads, and make arrangements for additional power and communication outages.
Extensive Damage and Crisis Response
The power cut seems to be impacting homes mostly in the southern region, though officials say that power was being gradually reinstated.
Local media have indicated that in certain areas structures have suffered roof damage, while power lines and trees have been knocked down by the gales.
In Wellington, a man was killed after being hit by a falling limb at a popular trail walking spot on Tuesday.
Meanwhile in Wellington, a female was pushed toward moving cars on a road by a strong gust of wind, in a moment that was recorded in a popular vehicle recording.
Flights entering and leaving the city have been halted because of the weather, and some roads and libraries are shut down.
Simultaneously local leaders have issued a emergency situation, to facilitate disaster response efforts.
Labor Protests During Extreme Weather
The powerful gales on this day occur while many of educators, medical professionals and government employees are participating in what has been described as a "mega strike", demanding better pay and working conditions.
Yet the intense climate has compelled them to alter various scheduled activities, with some outdoor rallies moved indoors or called off.
Like conditions are impacting the neighboring country, ushering in a heatwave to the remote areas.
Authorities have issued flame prohibitions for apprehension regarding wildfires.
