FORECASTERS have warned Scots to expect a double dose of downpours as rain clouds slowly grind to a halt over the west of the country.
April showers are due to go on for hours and hours starting tomorrow.
Half of the country is already under a Met Office alert for torrential rain lasting most of Tuesday.
But forecasters flashed an update to say that on top of the deluges today, areas to the west and south of Glasgow will receive a double dump on Wednesday.
The sheer volume of rain expected to fall on saturated ground carries the risk of homes and businesses being flooded and travel disruption on the roads and railways.
Met Office spokesman Oli Claydon said:” The rain itself is fairly typical westerly Atlantic rainfall.
“But we see it stalling a little over southern parts of Scotland, which won’t help.
“It is more the accumulation of water that is the main issue, with any rain falling on already very wet ground, causing issues.”
The Scottish Environment Protection Agency has 16 flood alerts in place, plus 24 – more serious – flood warnings.
A yellow Met Office alert for Tuesday covers half of Scotland, including Central, Tayside and Fife, Grampian, south west Scotland, Lothian and Borders and Strathclyde.
Most read in The Scottish Sun
Rain is expected to fall heavily from 1am and go on falling until 6pm.
The Met Office warning states:”Rain will develop across parts of Scotland overnight Monday into Tuesday before clearing away into the North Sea on Tuesday afternoon or evening.
“There is a chance that this rain could be heavy and persistent, with some areas seeing 20-40 mm (one and a half inches) of rain, and a slight chance one or two spots could see 50-60 mm (up to two and a quarter inches).
“These higher totals now seem more likely in the south of the warning area, roughly to the south of a line Glasgow to Edinburgh.
“Given the saturated ground in this region following recent heavy rainfall, the rainfall totals quoted have the potential to cause greater impacts than would be typical.”
After a brief lull overnight tonight, western parts have been warned of repeat conditions from 9am on Wednesday until 6pm.
Affecting Central, Tayside and Fife, south west Scotland, Lothian and Borders and Strathclyde, the warning adds: “Rain will spread east across the warning area on Wednesday, and be heavy at times over high ground.
“Accumulations of 15 to 25 mm (up to an inch) are expected widely with 40 to 50 mm (up to two inches) on high ground.
“Some flooding is possible following on from rain earlier in the week.”
Read more on the Scottish Sun
Cal Mac were yesterday forced to ban motorcycles from its sailing between Mallaig and Armadale on Skye due to ‘adverse’ weather.
The 10.30am crossing was cancelled for the same reason.