Marc Becker, Hydrology Duty Manager for the Scottish Environment Protection Agency (SEPA) said:
Heavy rain will cross the country early on Thursday 5 December accompanied by gale or severe gale force westerly winds. The gale force winds will become north-westerly during Thursday evening before easing on Friday.
"A combination of high tides and storm surge will result in a risk of flooding in some coastal communities along the Firth of Forth, Fife, East Lothian and Scottish Borders coast during Thursday afternoon.
"There may also be wave and spray overtopping across North West Scotland, the Western Isles, Orkney and along the west coast (as far south as Oban) during the early part of Thursday morning which could affect coastal properties and roads.
"SEPA will continue to monitor the situation and would encourage the public to check the SEPA website for active flood alerts and warnings or call SEPA's Floodline on 0845 988 1188, for the most up to date information on their area."