The Met office has issued a yellow weather warning for Cornwall with up to 20mm of rain expected.
Rain, heavy and persistent in places, will continue to affect much of South West of England today, slowly clearing again from the west this afternoon.
More wet conditions are expected from Sunday night through to Monday lunchtime.
Given continued saturated ground conditions, the public should be aware of the likelihood of localised flooding.
This update reflects the increased potential for locally significant impacts due to periods of intense rainfall.
It also extends the warning area westwards into Pembrokeshire and parts of Cornwall, though the heavier rain should clear from these areas by early afternoon.
A yellow weather warning means that people should be aware of the conditions.
A complex set of frontal systems has spread rain into the southwest of Britain overnight.
The bands of rain will become heavy in places, and may become slow moving at times to give some persistent rain.
Up to 20 mm of rain could fall over a fairly wide area, while a few locations could see 30-40 mm, with over 10 mm in an hour possible.
These accumulations may result in some locally significant flooding impacts, though there remains uncertainty in the locations likely to be worst affected.