In this paper, a mosaic of Sentinel-1 SAR satellite images in the area of Varaždin County for the time before and after the flood was analyzed in Google Earth Engine (GEE), in the period 05/07/2023. – 17.05. in 2023. In GEE, a mosaic of images of the flooded area was generated, showing the areas of permanent water bodies and flooded areas. A denoising filter was also used for image mosaics and tabulation of VH polarization values for specific groups of areas. Created mosaics of images before and after the flood, mosaics of filtered images before and after the flood, images of permanent water areas and images of flooded areas were downloaded from GEE in GeoTIFF (Geo Tagged Image File Format) format. Downloaded image mosaics were subsequently processed in the QGIS (Quantum Geographic Information System) program for better visualization. Displaying flooded areas using the GEE platform enables an effective overview of the actual situation on the ground, which helps in reviewing material damage and planning the reconstruction of affected areas.