Powerful winds hitting speeds of up to 155km/h (96mph) have left nearly 90,000 homes without power and forced officials to halt in excess of 100 aircraft departures, based on regional news sources.
The gales are affecting the entire southern region and lower areas of the northern region, per the weather forecasting body.
The nation's agencies have issued infrequent severe gust advisories - the highest alert level - in key areas including Wellington and Canterbury.
Locals have been urged to stay indoors, avoid travel, and make arrangements for further electricity and network failures.
Widespread Damage and Emergency Measures
This outage is primarily influencing households mainly in the South Island, though officials say that energy was being slowly brought back.
Regional news have stated that in some places structures have suffered roof damage, while utility poles and vegetation have been toppled by the gusts.
Across Wellington, a person was lost his life after being hit by a wooden fragment at a well-known hiking path on earlier this week.
Meanwhile in Wellington, a woman was blown onto oncoming traffic on a street by a powerful blast, in a incident that was captured in a popular vehicle recording.
Air travel entering and leaving the city have been halted because of the gusts, and various routes and public facilities are not operating.
Meanwhile authorities in Canterbury have issued a emergency situation, to facilitate emergency management operations.
Labor Protests Amid Severe Weather
The powerful gales on today come as numerous of teachers, doctors and other public workers are engaged in what has been termed a "mega strike", demanding higher wages and enhanced employment terms.
But the severe conditions has compelled them to change some of their plans, with some outdoor rallies moved indoors or called off.
Like conditions are affecting the nearby nation, causing a heatwave to the nation's interior regions.
Authorities have announced flame prohibitions for apprehension regarding forest fires.
