A year’s worth of rain fell in just eight hours around Valencia, Spain’s third most populous city, fueling the worst natural disaster in the country’s modern history.

Climate change helps explains why the storms and floods were so extreme. But questions have emerged about whether communication failures contributed to the toll.

The search for the dead and missing continues, more than a week since the Oct. 29 floods hit — as well as a gargantuan cleanup and recovery effort. Here’s a look at Spain’s deadliest natural disaster of the century,