Vincent Fitzsimons, SEPA Duty Flood manager, said:
"As Storm Callum reaches Scotland on Friday we will see an increase in wind and rain over most of Scotland through the weekend. SEPA is expecting flooding impacts from the rain across much of Scotland and from the wind in coastal areas.
"Prolonged heavy rain is expected across much of the country on Friday and again on Saturday. SEPA is expecting to issue a number of Flood Alerts for much of southern Scotland and the Central Belt over the next few days.
"These areas will see some flooding impacts including; disruption to travel, flooding of low lying agricultural land and other known trouble spots, and isolated property flooding. Depending on the total rainfall accumulations, some parts could see significant property flooding. We are keeping a very close eye in particular on an area around Eastern Dumfriesshire and Western Borders.
"In addition, strong winds will create a combination of storm surge and wave impacts for coastal areas in the south and west, including the Solway coast, Firth of Clyde and Loch Linnhe. This is likely to cause wave and spray over-topping, resulting in disruption to travel and potentially isolated coastal property flooding. The main times of risk are at high tides on Friday afternoon though to early Saturday morning. Orkney and the Moray Firth may also see some localised coastal impacts on Friday evening and Saturday early morning, particularly around high tide.
"SEPA will be working 24/7 to monitor rainfall, river and coastal levels, and will be in close contact with the Met Office and other partners to review the forecasts and flood alerts and warnings. We would encourage members of the public to remain vigilant and follow the advice of emergency services. The most up-to-date messages are always available on SEPA’s website and via our Floodline service on 0345 988 1188.
"You can also sign up to receive specific notifications for your area by signing up to Floodline or visiting our website."