A WEATHER warning for thundery, heavy, slow moving showers has been issued.

The Met Office says the wet weather is expected to sweep across the county in two spells.

The first could arrive between 11am tomorrow and 9pm.

A second warning comes into place between midnight and 11.55pm on Wednesday.

While some areas could miss the showers entirely, other areas could see two to three hours of heavy rain.

There could be localised flooding of roads.

The Met Office's chief forecaster's said: "Whilst many will miss the worst of the rain, the heaviest showers could bring 25mm in an hour to some spots."