Auckland Emergency Management is reminding residents to stay vigilant, ahead of forecasts for more thunderstorms and heavy rain

Duty Controller, Fleur Aldridge says there's a moderate risk the storms could become severe, generating localised downpours of 25 to 40 millimetres per hour.

She says rainfall of this intensity can potentially lead to surface or flash-flooding in low-lying areas.

Meanwhile, more than seven-thousand building assessments have been completed throughout the super-city.

Just under 580 buildings have been red-stickered -- including damage from both Cyclone Gabrielle, and the January floods.