Sentinel-1 Derived Flood Mapping, SE Texas, 19 September 2019

Sentinel-1 Imagery post-processed to classify suspect flood water on the evening of 18 September 2019.
Pre-event imagery detected water is rendered in grey, post-event detected water is rendered in blue.
Flatness of terrain and abundance of impervious surfaces does increase the difficulty of discriminating between concrete and pluvial ponding, users are advised to use discretion and this product is for situational awareness purposes only.