Intense gusts hitting speeds of as high as 155km/h (96mph) have left nearly 90,000 households experiencing outages and forced authorities to cancel more than 100 flights, based on domestic outlets.
The gales are affecting the whole South Island and lower areas of the northern region, according to the national weather agency.
New Zealand authorities have issued uncommon severe gust advisories - the most severe warning - in central regions encompassing Wellington and Canterbury.
Locals have been encouraged to remain inside, refrain from journeys, and prepare for further electricity and network failures.
Broad Destruction and Crisis Measures
The electricity loss seems to be impacting households mostly in the South Island, while agencies report that energy was being gradually reinstated.
Regional news have reported that in certain areas homes have lost their roofs, while utility poles and vegetation have been toppled by the gales.
Within the capital, a man was fatally injured after being struck by a falling limb at a well-known hiking path on Tuesday.
Additionally in the city, a individual was swept into approaching vehicles on a road by a powerful blast, in a moment that was recorded in a viral dashcam video.
Air travel entering and leaving the metropolis have been halted as a result of the gusts, whereas some roads and libraries are also closed.
Simultaneously Canterbury officials have issued a emergency situation, to facilitate disaster response efforts.
Labor Protests Alongside Extreme Weather
The wild winds on this day coincide with numerous of school staff, physicians and civil servants take part in what has been termed a "significant labor action", demanding higher wages and enhanced employment terms.
However the severe conditions has forced them to change some of their plans, with some outdoor rallies moved indoors or called off.
Comparable winds are affecting Australia, bringing a period of extreme heat to the remote areas.
Agencies have declared flame prohibitions for fear of bushfires.