Sri Lanka

Weather and Climate Outlook of Pre South-West Monsoon (May 2020)

Situation Report
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• The South West-Monsoon is expected to establish over Sri Lanka during mid to late May 2020. Colombo, Kalutara,
Gampaha, Galle, Matara, Ratnapura and Kegalle districts are at very high risk of the monsoon impact.

• In general, a normal rainfall outlook for South Asia from June to September is predicted, considering all phenomenal climatological parameters.

• The southern territories of South Asia including Sri Lanka may however receive slightly above-normal rainfall during the four-month season. Single extreme events in Sri Lanka are possible, especially at the onset of the monsoon, as revealed at the Monsoon Forum held on 29 April.

• The above-normal temperature observed in all parts of the country during the past two months may continue till early May.

• Based on the most likely scenario, an estimated 35,000 to 50,000 families may be affected in 3 to 4 Districts at the onset of the monsoon, based on analysis of historical floods and landslides.

• Special guidelines at central and district level have been issued for response and relief management, planning for early evacuations and camp management under health regulations etc, in the context of COVID-19.