The Met Office alert, covering Dumfries and Galloway and the Lines, figures 40-50mm of downpour on Friday and cautions flooding could represent a threat to life.
Yellow cautions are likewise set up for downpour in focal Scotland and for snow and ice in northern regions.
The Scottish Climate Assurance Organization (Sepa) has given flood admonitions in focal and southern regions.
The golden admonition ran from 03:00 until 12:00 GMT on Friday.Travel interruption has gone on over the course of the morning, with some rail and street courses shut down by flooding.
With 27 flood admonitions and 10 flood cautions set up, Sepa's flood obligation chief Vincent Fitzsimons told Scotland a large part of the nation would be affected."The fundamental spotlight is on the south of Scotland where the precipitation is focused on only a couple of brief hours today," he said.
"That is the main problem - it is an exceptionally thought explosion of downpour around there and we are sadly anticipating flooding across a lot of southern Scotland - actually anyplace from the lines up to Aberfoyle in the Trossachs so across a seriously enormous piece of Scotland."
Rail travel has been seriously impacted.
ScotRail said that the line was shut at Bowling in West Dunbartonshire, meaning no trains had the option to run between Dalmuir, Helensburgh and Balloch until the rising water is cleared. Network Rail posted pictures of floodwater pouring down onto the rail route line.
Serious flooding close to Bishopton has shut the line while engineers investigate the track for conceivable harm given the quick streaming water.
The rail route is likewise overflowed at Lochwinnoch which has suspended administrations between Ayr, Ardrossan, Largs and Glasgow.The East Shore is shut at Markinch because of reports of a landslip, significance administrations between Edinburgh, Perth and Dundee through Fife have been suspended. In any case, travelers can in any case go between Edinburgh, Perth and Dundee through Stirling.
The West Coast Fundamental Line is shut among Lockerbie and Carstairs because of flooding at Beattock, Dumfries and Galloway, following "outrageous short-term precipitation".
Network Rail Scotland tweeted: "We're managing over 20+ flooding issues across Scotland's Rail route, causing extreme disruption."There is no assistance on any North Clyde lines, Glasgow Focal - Edinburgh by means of Shotts and Wemyss Sound - Port Glasgow.
There is additionally interruption or postponements because of speed limitations on these courses:
Edinburgh - Aberdeen
Edinburgh/Glasgow - Inverness
Aberdeen - Inverness
Glasgow - Dumfries/Carlisle
Dumfries and Galloway Board has avoided potential risk of shutting The Whitesands in Dumfries to traffic from 10:00.
The Stream Nith is supposed to flood the street as the day goes on.
Different streets around the town of Glenlee between New Galloway and St John's Town of Dalry are shut including the A762 at Waterside and Lochside Point, the A712 at Ken Extension, B7000 at High Scaffold of Ken and the A713 at Parton Plant.
Not long before 11:00, the M74 was shut northward at intersection 13 close to Abingdon because of flooding.Elsewhere on the roads:
- In North Ayrshire, the A78 between Hunterston and Portencross has been closed in both directions due to flooding.
- Near Stirling, the M9 is closed in both directions between junctions 9 and 10.
- Dundee City Council has closed its Riverside Recycling Centre temporarily due to flooding.
- The A87 Skye Bridge has all lanes restricted due to high winds.
- In Edinburgh, the A720 is closed at Dreghorn while standing flooding water on the carriageway is cleared away.
- In South Lanarkshire, the A70 is closed from Uddingston to Hyndford Bridge with no access to Rigside due to flooding.
- In Ayrshire, the A77 is closed both ways at Bellfield interchange because of flooding.
Administrator Stewart Mackie, of Police Scotland's street policing division, said individuals ought to consider postponing their itinerary items until conditions get to the next level.
"In the event that your process is fundamental, if it's not too much trouble, prepare by ensuring you have adequate fuel and supplies in your vehicle, a charged cell phone and consistently drive as the circumstances permit," he added.
Drivers were encouraged to head to the circumstances and follow reports on the Traffic Scotland site and Twitter channel.
A yellow weather conditions cautioning for weighty downpour is active in Scotland until 14:00 on Friday, covering focal Scotland, Tayside and Fife, south-west Scotland, Lothian and Lines and Strathclyde.
In the mean time, a yellow admonition of snow and ice covers northern Scotland, aside from Orkney and Shetland, until 21:00.
The Met Office said the dangerous bomb tornado that sent temperatures plunging in the US over Christmas was causing the agitated climate in the UK.