Power is out to large parts of Auckland, including Henderson Valley, Waitakere, Bethells Beach, Helensville, Parakai, Kumeu, Dairy Flat, Kaukapakapa, Waiheke, Whangaparoa, and Marua Rd in Ellerslie.
Vector says power outages have been caused by severe winds and rain, particularly in the West Coast and north-western areas of the network.
Crews are responding as quickly and as safely as they can, given the current conditions.
It says the fastest way to report a power outage is through the online outage centre.
RNZ is New Zealand's statutory civil defence lifeline radio broadcaster, providing vital information and updates as they come to hand.
You can find our radio frequencies here.
The National Emergency Management Agency advises that in times of crisis or civil defence emergency a battery powered radio or a car radio remain essential lifelines if power is out and other forms of communication are unavailable.
Follow RNZ's liveblog for all weather-related updates: