As more rain is predicted for tomorrow, there is concern that saturated ground and already full rivers such as the River Thames in Purley, a risk of further flooding is in place.
With the threat of high winds, more homes could be cut as homes in Haywards Heath found themselves without power due to a fallen tree this week.
Juliette Fletcher has been to visit those living near the areas at risk of flooding.
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Wednesday's weather forecast for the west of the region
Wednesday's weather forecast for the east of the region
Wednesday's lunchtime weather for the east of the region