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In late November, Sri Lanka faced a separate weather emergency caused by a tropical depression in the southwestern Bay of Bengal. The system produced intense rainfall exceeding 100 millimetres within 24 hours, [1] resulting in 17 fatalities. [35] The crisis forced more than 250,000 residents to evacuate.
Flood forecasting is an important component of flood warning, where the distinction between the two is that the outcome of flood forecasting is a set of forecast time-profiles of channel flows or river levels at various locations, while "flood warning" is the task of making use of these forecasts to tell decisions on warnings of floods.
Between May and June 2024, heavy monsoon rains in Sri Lanka would lead to flash floods, mudslides, and falling trees across the western and southern parts of the island. [1] The floods killed at least 16 people and affected 20 out of the country's 25 districts , with some areas reporting over 400 mm (16 in) of rain.
Sri Lanka is the island east of India's southern tip. The southwest monsoon typically peaks during late May to the beginning of June in Sri Lanka, with prevailing winds from the south and southwest, streaming toward the Bay of Bengal. The areas that usually receive the heaviest rain are the south and west of the country, including Kalutara ...
Short-term operational prediction of flash floods is different from that of large river floods in several aspects (Table 1). Notably, short lead times for forecast, warning and response make operational flash flood prediction challenging, while they also make it a hydrometeorological problem (rather than a purely hydrological prediction problem).
The Department of Disaster Prevention and Mitigation (DDPM) has cooperated with the military and other units related to flood relief in each province to install water pumps and assess damages caused by floods. [4] Sri Lanka — More than 7,000 army personnel been deployed to flood-affected areas for rescue and relief operations. [68]
The 2019 floods and landslides in Sri Lanka were the floods which were caused from heavy torrential rainfalls during September 2019. [1] As of 26 September 2019; the monsoon floods affected in about 13 districts, killing at least 2 persons, injuring 6 people and about 116, 000 people are affected. [ 2 ]
Sri Lanka is reported to have been identified as the second most vulnerable nation in the world to confront climatic changes due to the effects of global warming.The floods caused in Northern Province is the second worst natural disaster to have occurred in Sri Lanka in the month of December, after the horrible tragic effect of the 2004 Indian Ocean earthquake and tsunami on Sri Lanka.