Powerful winds reaching speeds of as high as 155km/h (96mph) have caused around 90,000 households lacking electricity and forced officials to call off more than 100 flights, as reported by domestic outlets.
These gusts are affecting the complete South Island and southern parts of the North Island, according to the country's meteorological service.
New Zealand authorities have released uncommon severe gust advisories - the highest alert level - in key areas encompassing Canterbury and Wellington.
Residents have been urged to remain inside, stay off roads, and prepare for further electricity and network failures.
Broad Damage and Emergency Response
The electricity loss appears to be affecting households predominantly in the South Island, while agencies say that power was being slowly brought back.
Local media have reported that in some places homes have lost their roofs, and power lines and trees have been knocked down by the gusts.
Within the capital, a person was fatally injured after being hit by a falling limb at a frequent walking route on earlier this week.
Also in the capital, a woman was pushed toward moving cars on a street by a strong gust of wind, in a moment that was filmed in a popular vehicle recording.
Aircraft services entering and leaving the urban area have been cancelled as a result of the gusts, while certain highways and community centers are also closed.
At the same time local leaders have issued a state of emergency, to facilitate disaster response efforts.
Work Stoppages During Harsh Weather
These intense gusts on this day coincide with numerous of school staff, physicians and civil servants are engaged in what has been termed a "mega strike", calling for higher wages and enhanced employment terms.
However the extreme weather has compelled them to modify certain arrangements, with some outdoor rallies moved indoors or cancelled.
Like conditions are also sweeping the neighboring country, causing a period of extreme heat to the remote areas.
Agencies have declared fire bans for apprehension regarding wildfires.
