The Met Office has upgraded its weather warning for tomorrow, with flood-damaged communities told to expect further heavy rain.
Residents in Aberdeenshire have been advised to prepare for more disruption as water levels look set to rise again.
Home owners and businesses are already counting the cost of widespread flooding after the wettest December on record.
The Met Office said: “Further heavy and prolonged rain is expected on Thursday across much of eastern Scotland.
“Given the earlier exceptionally wet weather, with high river levels and saturated ground, please be prepared for further surface water and river flooding, as well as disruption to transport.”
The Scottish Environment Protection Agency has 25 flood warnings in place and Environment Minister Aileen McLeod urged people to continue checking local forecasts and take appropriate precautions.
She said: “The Scottish Government resilience committee has met again today to help co-ordinate and support local efforts to prepare for this additional rain and we will continue to monitor the situation carefully.”
Transport Minister Derek Mackay said: “As well as the wet conditions, there is the possibility of snow on the higher routes and our trunk road operating companies will be gritting and patrolling these routes where required.
“People should check all of the available information on travel operators’ websites and Twitter feeds before they set-off on their journeys. For trunk roads, Traffic Scotland will have the very latest updates on conditions.”