Monthly maps for discharge anomalies and Lowest alert level exceedance with a summary of the monthly hydrological situation.


Hydrological situation in December 2018

Figure 1. Lowest alert level exceedance for discharge December 2018.
Figure 1. Lowest alert level exceedance for discharge December 2018.
Figure 2. Lowest alert level exceedance for water level December 2018.
Figure 2. Lowest alert level exceedance for water level December 2018.
Figure 3. Monthly discharge anomalies December 2018.
Figure 3. Monthly discharge anomalies December 2018.

By EFAS Hydrological Data Collection Centre

During the months December 2018 and January 2019, most of the stations that surpassed the minimum discharge and/or stage threshold levels were concentrated along the basins in Norway, western Danube river basin in Germany and Austria, southern Danube in Serbia, Croatia and Bosnia and Hezergovina, Rhine river basin in Germany and Switzerland, Oder and Vistula river basins in Poland , Dnieper river basin in Belaruse and western Ukraine, Mihno-Sil river basin  in Spain and Po river basin in Italy. A more dispersed distribution of stations with exceedances occured across Mediterranean basins in southern and north-eastern Spain, Neretva river basin in Bostnia and Hezergovina and Jordan and Yarkon river basins in Israel.

The majority of stations that registered discharge values above the 90% quantile were located across Norway, the western Danube river basin in Austria and Germany and the southern Rhine river basin in Germany and Switzerland. This occurred less frequently for stations located in Elbe river basin in Germany, Danube river basin in northern Romania, Oder and Vistula river basins in Poland, Dnieper river basin in northern Ukraine, across Spain in Ebro, Guadalquivir, Douro, Minho-Sil, Ter and Llobregat river basins and isolated stations in Sweden, Ireland and England.

Stations that did not surpass the 10% quantile for discharge values were mainly located across Sweden and basins in Central Europe: Elbe and Rhine in Germany, Oder in Poland and northern Danube river basin in Czech Republic and Slovakia. This occurred less frequently in Eastern and southern Danube river basin in Romania and Serbia, for basins in England and Ireland, southern Norway, Dnieper river basin in Ukraine as well as for some isolated stations along the Ebro river basin in Spain, Daugava river basin in Latvia and the Scheldt  river basin in Belgium.