More than 1,000 homes have so far been flooded in England, and experts are warning that conditions are likely to get worse.
The Environment Agency has warned of more weather chaos over the next few days – and says flooding may get worse in some areas.
Thousands of people spent Christmas Day without power and many were evacuated due to flooding.
With stormy weather expected to continue through the week, the Environment Agency (EA) said the Christmas misery might get worse.
It said there could be “significant disruption” across southern England, and “heavy showers may worsen the current flooding situation in some areas”.
A spokesman added: “Ongoing river flooding across the Somerset Levels, River Severn, River Thames and River Ouse in Cambridgeshire and rivers across Essex is expected over the next few days.”
More than 1,000 homes have so far been flooded in England, and thousands of properties are still without power.
Experts have warned that electricity may not be fully restored in some houses until the end of the week.
Nick Rolt, from Crawley, tweeted a picture of his family sitting down to a candlelit McDonald’s meal on Christmas Eve when their power went off.
The EA has two severe flood warnings in place in the South West – the highest level of alert, which means there is a danger to life. They are at Beaulieu Garden Park Home Site and Iford Bridge Home Park.
There are 93 flood warnings and 185 flood alerts across England and Wales.
Firefighters broke their strike in parts of England because of the storms.
Members of the Fire Brigades Union in Surrey and Kent were recalled to duty under the terms of an agreement between the union, the employers and the Government.
In the early hours of Christmas Day, around 90 people were evacuated from their homes on the River Stour near Bournemouth.
People were also evacuated from the Beaulieu Garden Park Home in Christchurch, Dorset.
The Coastguard joined Kent Fire and Rescue Service to rescue people from the Little Venice Caravan and Marina Park in Yalding after rising waters from the River Medway cut them off.
There was chaos at Gatwick Airport in West Sussex after a power cut at the North Terminal led to cancellations and delays, leaving thousands of passengers stranded.
Airport bosses face a possible investigation by the Civil Aviation Authority (CAA) over the chaos – which came two months after flights were hit by another storm.