About a dozen reservoirs and dams in Jaén province have been discharging water during Sunday due to the heavy rains of the past week. Guadalén reservoir has been discharging about 100,000 cubic litres per second that go directly into the río Guadalimar, the main tributary of the rio Guadalquivir as it passes through Jaén province.
The levels are being reduced in order to leave a safety margin of between 15% and 20% in each reservoir, enough to accommodate more incoming water if the rains persist.