Heavy showers and thunderstorms are set to arrive in Sussex this afternoon as the Met office issues another weather warning.
Scattered across Hampshire will become more widespread during the day.
The focus of the heaviest downpours will tend to shift into Sussex by late afternoon and evening, allowing some improvement across the western slice of the warning area.
The yellow warning of rain came into force at noon and lasts until 9pm.
There is a risk of localised surface water flooding, with more than an inch predicted, with the added hazard of lightning in some areas.
The Met Office's chief forecaster's said: "An unstable and moist flow across southern parts of Britain will provide the basis for some intense showers through today, and with the winds lighter than recent days, these will last longer where they do occur, perhaps producing in excess of 30 mm of rain in two or thre hours in a few localities.
"But as so often happens on showery days, some places will escape the worst."