by EFAS Hydrological Data Collection Centre 

During the month of November, there were 325 stations with exceedances, twice that of the previous month. Most of the stations are located again in Italy (67) and these exceedances relate to the water level variable. Slovenia (55) and Spain (51) were the next two countries with highest number of stations with exceedances.

Additional countries with high levels of station exceedances are Germany (33), Croatia (25), Switzerland (22), Austria (19). The following countries have recorded ten or less stations with exceedances this month: Sweden, Bosnia and Herzegovina, Norway, Ireland, Slovakia, Hungary, Poland, Belgium, Ukraine, Serbia, and France.

As for the river basins, the main river basin with values above the thresholds this month is the Danube River, with 122 stations in nine different countries, with Slovenia standing out. The Po River, focused in Italy, is the next river basin with the highest number of stations (63), followed by the Rhine River basin (27) showing exceedances in Germany and Switzerland. A total of 55 different river basins had exceedances in November.

In terms of stations that recorded values of mean discharge above the 90% quantile, 417 exceeded this threshold this month. In November, the country with the most stations in this situation was Spain (74). France (64) and Germany (60) are the countries with the next highest number of stations in this situation. The Spanish stations are distributed in nine different river basins, highlighting the Minho River (28) exceeding this quantile. In France there are eight basins affected while in Germany only the Danube river and Rhine river basins are affected. In Switzerland, 28 stations have values above this quantile. In Austria, 27 stations exceed this cliff. Other stations exceed the 90% quantile value in up to 23 countries.

By river basin, the aforementioned Danube River stands out with 95 stations above the 90% quantile. The  Rhine River basin is the second with the highest number of stations over this cliff, showing 92 stations in this situation and followed by the Minho river basin (Spain) with 28. A total of 53 different river basins have exceedances over the 90% quantile in November.

Finally, and according to the number of stations recording mean values below the 10% quantile, in November there were 55 stations with average values below this cliff at ten different countries.

This month, Spain and Norway area the countries with most of the stations (20 each), followed by Romania with 7 stations and Bulgaria with 2 stations. Six countries show one station in this situation.

In terms of river basin, this month the Danube River is the one with the highest number of cases, with 10 stations with an average discharge below the 10% quantile. The Ebro River has 6 stations, one more than the Guadalquivir river basin. In total, as many as 33 different basins have values below this limit in Europe.