BANGKOK: Floodwaters receded across parts of Bangkok on Sunday (Sep 27) after a break in torrential rain that caused severe flooding a day earlier and prompted authorities to declare the Thai capital a disaster zone.The Bangkok Metropolitan Administration (BMA) said late on Saturday that rain had eased, with only scattered clouds remaining, allowing authorities to accelerate efforts to drain canals and lower water levels. Officials expected flooding to gradually subside if no further rain fell.Bangkok received nearly 300mm of rainfall over 48 hours through Saturday, flooding major roads and leaving some cars partly submerged. The BMA said it had prepared…