Flooding is expected to hit a number of areas still cleaning up from Storm Frank.
Scottish residents are being urged to "remain vigilant" following persistent rainfall that will continue throughout Monday and into Tuesday, according to the Scottish Environment Protection Agency (SEPA).
SEPA has issued around 35 flood warnings for Tayside, Dundee and Angus, Aberdeenshire, and Aberdeen City.
A flood alert has also been issued for the Scottish Borders, with rivers in Berwickshire and those draining the Lammermuir and Cheviot hills most at risk.
Although amber flood warnings remain in place, the vast majority of rivers are not expected to reach levels seen during Storm Frank last Wednesday.
In a statement released on Sunday, SEPA's hydrology duty manager Vincent Fitzsimons said that the rain will be "less intense but more prolonged than during Storm Frank".
"This means that rivers will rise more slowly but then stay high for much longer – from Sunday through till Tuesday. The peak for most areas will be on Sunday night and Monday morning," he said.
Static caravans were seen floating down the River Dee in Ballater, Aberdeenshire, after the local caravan park was flooded when the river burst its banks.
The incident was filmed on Sunday by customer service representative and local resident Graeme Miller, 32.
"I went up to look at the bridge to see how bad the river was getting and there was a single caravan stuck against the bridge in the water," Miller said. "Then I saw the next one come along in the current and crash into the bridge next to it.
"There's been about six go past there throughout the day. I've never seen anything like that before, not in all the time I've been here."
There have been a number of road closures and blockages due to flooding in Perthshire, Angus, and Aberdeenshire, the BBC reported.
National Rail announced on Monday that trains are unable to run on the West Coast Main Line between Carlisle and Glasgow and Edinburgh because of "urgent repairs" to a river bridge at Lamington.
"The line is to remain closed throughout January while engineers carry out repairs to the damage caused by Storm Frank," the statement added.
Scotland's police have advised people to stay away from flooded areas.
Chief Inspector Richard Craig announced on Sunday that police are visiting vulnerable people in Braemar, Crathie, and Ballater, and officers are located within Braemar Police Station.
"Anyone requiring the emergency services is advised to speak to an officer at the police station or utilise the communication vehicles," he said.
The Scottish government's resilience committee met on Sunday to assess the overall situation, the BBC reported.
"People will be returning to work in the coming days and all services are working together to make sure the unusually high levels of rain that we are seeing cause as little disruption as possible," deputy first minister John Swinney said.