Storms battered Tayside and Fife after hours of thunder and lightning overnight and into Monday morning.
A yellow weather warning remains in place after thunderstorms lasting 12 hours in some areas.
Roads across the region flooded, with emergency services working to clear roads.
Power cuts and surface water saw trains delayed and replacement buses put in place.
Firefighters had to clear flooding in Cupar, one of the worst-hit areas.
Other towns throughout Fife, including Kirkcaldy, Methil and Dunfermline were also badly flooded.
In Tayside, trains were replaced with buses due to a power failure affecting signalling equipment between Perth and Dundee.
Services in Fife have also been affected, with trains running at a reduced speed.
Scotrail has warned travellers to expect delays and timetable alterations.
NEW: We received reports of a power failure that was affecting the signalling equipment between Perth and Dundee. @NetworkRailScot engineers have attended and carried out repairs to allow us to run our trains again.
Some services may still be delayed/revised. pic.twitter.com/GHQz4Yn4Sj
— ScotRail (@ScotRail) August 15, 2022
A yellow weather warning for thunderstorms remains in place until midnight, with further heavy rain expected.
The Met Office warned of possible building damage, road closures and transport disruption.
Thunder and lightning warning ongoing in Tayside and Fife
It said: “There is a small chance that homes and businesses could be flooded quickly, with damage to some buildings from floodwater, lightning strikes, hail or strong winds.
“Where flooding or lightning strikes occur, there is a chance of delays and some cancellations to train and bus services.
YELLOW weather warning for THUNDERSTORMS
Today (Monday 15th) 00.00 – 23:59
parts of ScotlandFull information can be found here 👇https://t.co/cRCqWReups pic.twitter.com/8YV8m2dMVA
— Traffic Scotland (@trafficscotland) August 15, 2022
“Spray and sudden flooding could lead to difficult driving conditions and some road closures
“There is a slight chance that power cuts could occur and other services to some homes and businesses could be lost.”
Meanwhile an18-inch sink hole forced the closure of Dundee Botanic Gardens car park.
The hole first appeared a couple of weeks ago but was made worse by the overnight rain, measuring a foot-and-a-half in both width and depth.
Kevin Frediani, curator at the West End gardens, said: “We have called in contractors who are working on the sink hole to repair it as quickly as possible.
“Hopefully the contractors will be able to not only repair it but shed some light on why this has happened.”
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