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Friday, September 3, 2021

Climate Bulletin For Sri Lanka (3 September 2021)


Highlights          

                   

  • Fairly heavy rainfall is predicted for Central, Northern, Sabaragamuwa and Western provinces and Galle and Matara districts during 3rd - 7th September.
  • Fairly heavy rains were experienced in the Southern, Central, Sabaragamuwa & Western provinces with max of 86 mm in Matara district on 1st September.
  • From 24th- 30th August: up to  15 m/s from Southwesterly were experienced over the island.
  • Sea surface temperature was observed above 0.5℃ to the West of Sri Lanka and neutral to the East.




Predictions

Rainfall

14-day prediction: 
NOAA NCEP models: 
From 1st – 7st September
Total rainfall by Provinces
  • 65 mm - Sabaragamuwa, Western
  • 55 mm - Central, Northern, Southern
  • 45 mm - Uva
  • 35 mm - Eastern
  • 25 mm - North Central, North Western
From 8th – 14th September: 
Total rainfall by Provinces:
  • 45 mm - Sabaragamuwa
  • 35 mm - Central, Western, Southern
  • 25 mm - Uva, Northern
  • 15 mm - Eastern 
MJO based OLR predictions:
For the next 15 days: 
MJO shall be active thus, slightly enhanced rainfall during 3rd – 15th September. 

Ocean State (Text Courtesy IRI)
Pacific Sea Sate: August 25, 2021 
Equatorial SSTs were below average in parts of the eastern Pacific Ocean and near average across the rest of the Pacific Ocean in late-August and most key atmospheric variables were ENSO –Neutral condition. A large majority of the model forecasts predict ENSO-neutral likely to continue through the Northern Hemisphere summer.

Indian Sea Sate
Sea surface temperature was observed above 0.5to the West of Sri Lanka and neutral to the East.


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