Nine of the ten Demand Units are in a pre-alert drought scenario.
The water reserves of the Balearic Islands remain at 46% in September, the same percentage as the previous month and one percentage point less than in September last year. By islands, Formentera went from 37% to 57% and Menorca gained six percentage points to 49%. Mallorca, on the other hand, remained at 46% and Eivissa dropped two points to 47%.
As for the Demand Units (DUs), two more have entered drought pre-alert: Menorca and Palma-Alcúdia. As a result, there are now 9 units in pre-alert and only one (Tramuntana Sur) in a normal scenario.
Data from the State Meteorological Agency (AEMET) indicate that in the Balearic Islands as a whole, September was a wet month with a record of 74.9 l/m2, above the historical average (60 l/m2). The situation by islands, however, has been uneven. Thus, in Menorca it has been a very wet month with 109.3 l/m2 when the historical average is 56.9 l/m2. Eivissa, with 119.8 l/m2, also far exceeds the historical average of 57.8 l/m2. In Mallorca, on the other hand, it has been a normal month in terms of rainfall with 65.9 l/m2 when the historical average is 61.6 l/m2.
The percentage of interannual precipitation in the Balearic Islands as a whole is 8% higher than the historical average. In the Pitiusas, it has been 40%; in Menorca, 23%; and in Mallorca, 3%. In terms of temperatures, it has been a very warm month.
Although there have been episodes of notable rainfall during the month of September, these have been torrential and, therefore, much of the rainwater has spilled directly into the sea.
In view of the practically generalised drought pre-alert scenario, the Directorate General for Water Resources convened the Technical Drought Committee last Tuesday to inform its members of the situation of the water reserves.