Severe gusts reaching velocities of approximately 155km/h (96mph) have resulted in around 90,000 households lacking electricity and led agencies to halt more than 100 air travel services, as reported by domestic outlets.
These gusts are influencing the whole South Island and lower areas of the North Island, according to the weather forecasting body.
Officials in New Zealand have issued uncommon high-level wind alerts - the top caution category - in key areas encompassing these major districts.
Residents have been urged to remain inside, stay off roads, and get ready for further power and communication outages.
Extensive Destruction and Crisis Measures
The electricity loss seems to be impacting households predominantly in the South Island, although agencies state that the electricity supply was being gradually reinstated.
Regional news have stated that in certain areas homes have lost their roofs, whereas power lines and trees have been toppled by the gusts.
In Wellington, a man was fatally injured after being struck by a tree branch at a frequent walking route on earlier this week.
Also in the capital, a female was pushed toward approaching vehicles on a thoroughfare by a intensive burst, in a event that was filmed in a viral dashcam video.
Aircraft services entering and leaving the city have been cancelled due to the gusts, and some roads and libraries are not operating.
At the same time authorities in Canterbury have announced a emergency situation, to support emergency management operations.
Work Stoppages Alongside Extreme Conditions
The powerful gales on today occur while many of school staff, physicians and civil servants take part in what has been described as a "mega strike", requesting improved salaries and workplace environments.
But the intense climate has compelled them to modify some of their plans, with several external protests moved indoors or cancelled.
Like conditions are affecting the neighboring country, ushering in a heatwave to the country's outback.
Officials have announced burning restrictions for apprehension regarding forest fires.
