Severe gales hitting speeds of up to 155km/h (96mph) have caused approximately 90,000 households experiencing outages and compelled agencies to call off more than 100 air travel services, according to domestic outlets.
The winds are affecting the complete South Island and southern parts of the northern region, according to the weather forecasting body.
New Zealand authorities have announced rare high-level wind alerts - the most severe warning - in key areas including Canterbury and Wellington.
Residents have been encouraged to avoid going outside, stay off roads, and get ready for more utility disruptions.
Broad Destruction and Crisis Measures
The electricity loss seems to be impacting homes mostly in the South Island, while authorities say that power was being gradually reinstated.
Local media have stated that in various locations roofs have been ripped off houses, and power lines and trees have been brought down by the gales.
In Wellington, a man was killed after being impacted by a falling limb at a well-known hiking path on earlier this week.
Also in the capital, a female was pushed toward approaching vehicles on a street by a strong gust of wind, in a incident that was filmed in a viral dashcam video.
Flights to and from the urban area have been suspended as a result of the weather, whereas some roads and libraries are also closed.
Simultaneously authorities in Canterbury have issued a state of emergency, to assist emergency management operations.
Work Stoppages Alongside Extreme Conditions
The powerful gales on Thursday come as tens of thousands of educators, medical professionals and government employees take part in what has been described as a "significant labor action", requesting better pay and working conditions.
But the extreme weather has forced them to modify certain arrangements, with some outdoor rallies moved indoors or called off.
Comparable winds are also sweeping the neighboring country, causing a heatwave to the remote areas.
Authorities have issued flame prohibitions for apprehension regarding wildfires.
