Edinburgh and Stirling have been hit with flash flooding and thunder with one man stranded on a car roof.
Heavy rain led to disruption in the west of the capital across Bankhead, Clermiston and Corstorphine.
Tram services were temporarily shut down in some areas as flood water covered tracks.
After soaking the capital, heavy rain made its way to Stirling, prompting warnings from police and Stirling Council about flash floods.
A Tesco supermarket in the city appeared to have suffered a failure in its roof as a social media post showed water pouring into the store.
Surface water made conditions challenging in the town centre. Another tweet showed a river of water flowing down the road near Friar's Wynd on Monday evening.
Stirling Council said flash flooding had been reported throughout the area and people should consider their travel before making any journeys.
Earlier Edinburgh Trams suspended some services until water had subsided from the tracks and advised passengers to use buses instead.
The MP for Edinburgh West, Christine Jardine, posted footage of water lapping up the front of her constituency office on St John's Road.
She advised people in the area to stay safe and to alert the emergency services if they were affected by flooding.
Ms Jardine said: "The water appears to have gone down as quick as it rose - but we're hearing terrible stories about people in other parts on top of cars.
"I'm worried about people coming home to flooded homes. The first thing we did was put the electricity off - if it gets into the wiring it can be dangerous.
"We've had heavy thunder from around 13:00 and I think the drains couldn't cope as we're at the foot of the hill."
The Met Office issued a yellow weather warning for rain affecting much of the country. The Scottish Environment Protection Agency (Sepa) also issued five amber flood alerts for Fife, Edinburgh and Lothians, Dumfries and Galloway, Scottish Borders and West Central Scotland.
Sepa tweeted: "Heavy and persistent rainfall expected today, mainly across eastern regions with potential for localised impacts and surface water disruption."
Forecasters warned that "weather bomb" downpours were likely to sweep across eastern parts of the UK between Monday and Tuesday.
Police advised motorists to take care and use alternative routes where possible.