Due to heavy rains in past few days, landslides and floods in Sri Lanka killed 151 people, 111 people still missing, displacing 100,000 and directly affecting 500,000 people across many districts according to the initial estimates by state-run Disaster Management Center.
International Disaster Charter was activated by Disaster Management Centre (DMC) and coordinated by International Water Management Institute (IWMI)/CGIAR. The first satellite image obtained on 28-05-2017 by German Aerospace Centre (DLR) showed vast areas of standing flood waters along the Southern and South-Western Provinces. Initial estimates from satellite images indicate that Matara (49.3) and Kalutara with 31.6 sq.km flooded area, are the worst affected districts followed by Galle (20.2 sq.km), Rathnapura (14.9 sq.km), Colombo (5.6 sq.km) and Gampaha (4.5 sq.km). Detailed Divisional Secretariat wise flood affected area for these six districts are given in the attached excel file. Kalutara is reeling under worst flood since 2003.
Satellite image: THEOS MS (28 May 2017 04:05). Image depicts standing water in blue color in rural areas of Matara and the submerged crop fields. Further, the roads available in multiple color explains type of roads that are submerged due to inundation.