A feature article published by the NASA Earth Observatory highlights the current groundwater deficits in Central Europa as depicted by the Gravity Recovery and Climate Experiment Follow On (GRACE-FO) satellites. The article cites Wolfgang Wagner, who has been using ASCAT soil moisture data provided by EUMETSAT H SAF for analyzing recent drought episodes over the region.

https://earthobservatory.nasa.gov/images/146888/signs-of-drought-in-european-groundwater

Update: The German magazine Der Spiegel has published a news story about the topic:
Europa wird zur roten Zone [in German]