AbstractIn the paper a flood phenomenon is analyzed. For this purpose data from GRACE satellites (Gravity Recovery and Climate Experiment) was used. Filtered data presented in a form of millimeters of Equivalent Water Thickness (EWT) was interpolated in places where flood in 2010 had happened (south of Poland). On a basis of graph where time series of EWT were presented, some conclusions were made. For the thesis confirmation meteorological WGHM and hydrological NOAA models were added to the GRACE model.