Highlights

• Rainfall Prediction : Fairly heavy rainfall is predicted in Western, Sabaragamuwa, North Central & Central provinces during 13th – 17th August
• Monitored Rainfall : Heavy rainfalls were experienced in the Central & Sabaragamuwa provinces with maximum of 133.5 mm in Kegalle district on 8th August
• Monitored Wind : From 3rd- 9th August: up to 15 km/h from the Southwesterly were experienced over the island
• Monitored Sea Surface : Sea surface temperature was observed above 0.5℃ around all of Sri Lanka

Interpretation

Monitoring

Rainfall : During the last two weeks, there had been heavy rainfall over the following provinces: Central and Sabaragamuwa

Wind : Southwesterly winds prevailed in the sea area and around the island during last week

Temperatures : The temperature anomalies were slightly above normal for the Sabaragamuwa province, the last week – driven by the warm SST’s.

Prediction

Rainfall : During the next week (13th – 17th August) fairly heavy rainfall is predicted for Sabaragamuwa, Western, North Central and Central provinces and Galle and Matara districts.

Temperatures : The temperature remains slightly normal for August. During 14th – 22nd August, the temperature remains high especially in the Uva, Eastern, North Central and Northern provinces.

Teleconnections:
La Nina- The SST forecast indicates that the La Niña event has transitioned to ENSO-neutral and will likely remain so through the boreal summer.
MJO shall be active thus, slightly enhanced rainfall during 10th – 24th August.