The reservation by areas is as follows:
- Eastern Cantabrian is at 95.9%
- Western Cantabrian at 88.6%
- Miño-Sil at 86.3%
- Galicia Costa at 87.0%
- Internal basins of the Basque Country at 90.5%
- Duero at 88.0%
- Slash at 66.1%
- Guadiana 42.9%
- Red, Odiel and Piedras at 79.9%
- Guadalete-Barbate at 51.0%
- Guadalquivir at 49.4%
- 58.5% Andalusian Mediterranean Basin
- Safe at 47.0%
- Jucar 58.4%
- Ebro at 88.1%
- Inland basins of Catalonia at 94.2%
Rainfall has considerably affected the entire peninsula. The maximum was produced in Vitoria-Gasteiz (A) with 100.1 mm (100.1 l / m2).
The situation of the basins, in cubic hectometers, is detailed in the attached table: