Severe gusts hitting velocities of up to 155km/h (96mph) have resulted in approximately 90,000 homes lacking electricity and compelled agencies to halt in excess of 100 air travel services, based on local media.
The gales are influencing the whole South Island and southern parts of the North Island, per the country's meteorological service.
The nation's agencies have announced uncommon severe gust advisories - the highest alert level - in core zones such as Wellington and Canterbury.
Residents have been advised to avoid going outside, avoid travel, and make arrangements for additional utility disruptions.
Broad Impact and Emergency Response
The electricity loss seems to be impacting residences predominantly in the southern region, although agencies say that power was being gradually reinstated.
Domestic outlets have stated that in some places structures have suffered roof damage, whereas power lines and trees have been brought down by the gusts.
Across Wellington, a man was fatally injured after being struck by a falling limb at a frequent walking route on earlier this week.
Additionally in the city, a woman was swept into approaching vehicles on a thoroughfare by a powerful blast, in a incident that was recorded in a widely shared car camera footage.
Air travel in and out of the metropolis have been halted due to the gusts, and various routes and public facilities are shut down.
At the same time local leaders have announced a crisis declaration, to facilitate emergency management operations.
Work Stoppages Alongside Harsh Weather
The powerful gales on today come as many of educators, medical professionals and government employees are engaged in what has been termed a "mega strike", requesting better pay and working conditions.
However the extreme weather has compelled them to change certain arrangements, with some outdoor rallies shifted to interior venues or called off.
Similar gusts are also sweeping the nearby nation, causing a heatwave to the country's outback.
Officials have issued fire bans for apprehension regarding forest fires.
