Spain has been rocked by heavy floods and thunderstorms as popular holiday hotspots risk facing weather chaos.
Half of the country's 50 provinces received weather warnings this week, as temperatures reached a staggering 42C.
Dramatic footage shows Spanish streets turned into filthy rivers as flood water swallowed up vehicles and chairs.
A "heat dome" has swamped large parts of Europe, causing unprecedented conditions in certain regions.
Drivers are seen forcing their cars out of the floodwater
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Footage shows cars swamped in water
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A series of regions have been placed under flood warnings
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The extreme weather poses a significant threat to Britons holidaying in Spain, while back home the UK swelters in 30C heat.
Several regions are facing a heavy battering, including Barcelona, Zaragoza, Girona, Tarragona and Castellon, The Sun reported.
More than 100mm of rainfall fell in just one hour in the popular tourist town of Tarazona in Zaragoza.
The downpour in Tarazona has caused significant disruption to public transport due to the flooding of the streets.
WATCH: Cars plough on as heavy rainfall causes street to flood
The Military Emergency Unit has been deployed across the Tarazons province to provide assistance.
In most parts of Aragon and Catalonia, significant rainfall caused heavy flooding and led to the overflowing of ravines.
Meteocat, the Catalan weather service, issues its highest possible weather warning.
Forecasts next week say parts of the UK could be hit by flash flooding when the UK exits its third heatwave.
A woman with her dog steps over a damaged street from the flooding
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Cars were damaged from the fierce flooding
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The UK is expected to see heavy thunderstorms, which could cause flash flooding, as "excessive rainfall" is expected to hit the country.
NetWeather's senior forecaster Nick Finnis said: "Thunderstorms are expected to develop along a zone of wind convergence ahead of the surface front, and these will organise into multicell clusters moving north.
With a 20 per cent chance of thunderstorms, they could "pose a risk of excessive rainfall in a short space of time leading to flash-flooding, hail and gusty winds".
Manchester, Liverpool, Newcastle, Chester and Glasgow all have a 20 per cent chance of thunderstorms.