The met office on Sunday upped its weather warning for Sunday from the initial yellow to orange over storms.
In place from 8am to 6pm, the region is expected to be affected by isolated heavy thunderstorms, with heavy rains.
Hail is very likely along with strong gusts of wind.
The fire service called on authorities to ensure drains, sewers and rivers were cleared of debris, dirt or vegetation.
It urged the public to ensure water pumps are properly working...