Tropical Cyclone Roanu hit Chittagong, Bangladesh, on May 21, 2016.
Cyclone Roanu has forced half a million people to flee their homes and left at least 21 dead.
The tropical cyclone made landfall at noon local time (06:00 GMT) on Saturday, causing floods, landslides and submerging homes.
Torrential rains and wind gusts of up to 70 mph (110 kmh) swept through the island closing several ports and taking electricity down across the country.
The storm system has since weakened but heavy rainfall is continuing, which poses a dangerous threat of flooding and landslides.
The authorities took over 500,000 people into shelters as Roanu hit.
Residents have been warned for a storm surge of 4-5 feet above normal tide levels along the coast of Bangladesh arond the time of landfall.
And of course, tides around the full moon – a Blue Moon this month – are usually higher.
