Perthshire has been worst hit by the high winds and heavy rain which has affected many parts of Scotland.
Sandbags were put in place in Callander to keep back the flood water
The Loch Tay burst its banks at Kenmore and five other severe flood warnings were in place in the Perthshire area.
About 1,600 homes were without power in Dumfries and Galloway, South Ayrshire, Argyll and the west Highlands.
The Erskine Bridge has been closed, while the Tay Bridge was closed to high-sided vehicles and the Forth Bridge has been open to cars only.
Caledonian MacBrayne said it had cancelled a number of services due to the adverse weather.
Police reported problems with flooding on the roads in Dumfries and Galloway, with the A716 Stranraer road closed at Drummore.
Weather forecasters said the north west would continue to be affected by heavy rain on Monday afternoon, while the south and east would become brighter.
The severe gales were also expected to ease down.
The River Tay breaks its banks at about 1430 on Monday
However, more rain was anticipated through the night.
Heavy rain fell in western and central Scotland between 1800 GMT and midnight on Sunday, with winds reaching 70mph in the west.
The severe flood warnings issued by Sepa on Monday morning included Kenmore and Loch Tay, the River Lyon, the River Tummel, the River Isla and two stretches of the River Tay - from Dunkeld to Perth and from Kenmore to the A9 road bridge upstream of Dunkeld.
Nine flood warnings were in place in central Scotland and the Highlands, while there were also 19 flood watches in force.
The flood gates were closed on the River Tay in Perth, where the water was forecast to peak at 1800 GMT between high tides.
There was also some sandbagging taking place in Aberfeldy and the car park at Callander had been totally flooded.
David Faichney, Sepa's flood warning unit manager, said: "We are expecting quite a high flow down the River Tay.
"It's the sort of thing you get once in every five years so it's quite a significant flood and it will be causing a lot of disruption."
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