In the last week the reservoir water reserve of the whole of Spain has fallen again. The lack of rain in February, March and, especially, April have meant that stocks have fallen uninterruptedly for more than two months.

"We are, therefore, facing one of the eight driest hydrological years to date since 1961," says Aemet spokesman Rubén del Campo. There are four scenarios of short-term shortages: pre-alert, emergency, normality, or pre-emergency.