"Auckland may get 40mm and, at the higher end, some parts may reach 100mm. Coromandel Peninsula, which is even more exposed, may see over 150mm of rain possible."
Rain isn't expected for those in the west as there are lower totals from the Bombay Hills southwards.
As of February 13, Auckland's dam storage in total was sitting at 60.66 per cent.
Dam levels are down 23 per cent for this time of year, but it seems Aucklanders have been doing well with their water consumption.
Watercare's figures yesterday show the Auckland region consumed 459 million litres of water.
Gales are also expected across the North Island starting overnight and into Monday, possibly lingering for the next few days.
The wind and clouds have already picked up around the northern part of the country and will continue.