Strong winds may cause damage to trees, power lines and unsecured structures.
MetService again warned motorists – especially in large vehicles and motorcycles – to consider the hazardous driving conditions.
Thunderstorms were also a possibility for most of the region.
Saturday evening saw winds up to 90km/h around many areas in Northland.
Wiroa Rd, west of Kerikeri, recorded 37mm of rainfall in the 24-hours until 10.55am on Sunday. Ōhaeawai was close behind with 31mm, followed by Twin Bridges in Mangakahia, which received 27mm.
Whangārei reaped the lowest recorded rainfall on Robert St with 1.3mm of rain in the 24-hours before Sunday at 10.55am. Wallace Rd in Awaroa saw 1.5mm f rain in the same time period.
Around 261 residents in Russell were without power from 3am as Top Energy worked to repair an equipment fault on the Russell Express feeder.
It was unknown whether the severe weather had contributed to the power outage.
Top Energy staff were able to restore power to all affected homes in the area after approximately seven hours.