What caused Spain's deadly flash floods?

A year's worth of rain slammed Spain in just one day, leading to catastrophic flash floods that have killed at least 155 people.

What caused Spain's deadly flash floods?

A year's worth of rain slammed Spain in just one day, leading to catastrophic flash floods that have killed at least 158 people. Footage shows dozens of cars overtaking streets in Valencia and emergency workers rescuing residents from flooded homes. Here's what we know about the flash floods and what caused them.

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