West Sussex is expecting heavy showers that may lead to difficult driving conditions, disruption to transport, localised surface water and river flooding.
Whilst some places will miss the worst of the rain 10 - 25mm of rain may occur quite widely, with some areas potentially seeing up to 60 mm and much of this falling in less than 6 hours.
There is a chance that heavy prolonged rainfall could lead to local flooding and disruption to transport.
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