Chattogram experienced its highest rainfall in 43 years, with 394 millimeters recorded in 24 hours on Tuesday, according to the Bangladesh Meteorological Department. The previous record was 407 millimeters on July 5, 1983. The heavy and continuous downpour submerged large parts of the city, including major roads and low-lying areas, causing severe disruption for residents. Authorities have warned people living near hills to move to safer places due to landslide risks.

Other regions also saw significant rainfall, including Bandarban with 176 millimeters, Sitakunda 170, Hatiya 143, Khepupara 106, and Teknaf 94. Even Dhaka experienced waterlogging after 46 millimeters of rain. The weather office stated that rainfall above 88 millimeters in 24 hours is considered very heavy. A warning signed by meteorologist A.K.M. Nazmul Haque said heavy to very heavy rain may continue in several divisions over the next 48 hours.

The Bangladesh Weather Observatory Team reported that a strong monsoon belt has entered the country and may remain active until July 13, with risks of flash floods and landslides in Sylhet and the Chattogram Hill Tracts.