Highlights

Rainfall Prediction: From 5th -11th Nov, heavy rainfall (105-135 mm) is predicted for the Western plains, Western hills; while fairly heavy rainfall (55-105 mm) is predicted for the Southern plains and Eastern hills; while moderate rainfall (25-55 mm is predicted for the Eastern plains and Northern plains. From 12th -18th Nov , the rainfall shall intensify further with a similar spatial pattern.

Monitored Rainfall:During 29th October – 4th November, the average rainfall across Sri Lanka totalled 6 mm which was near–normal. There was higher rainfall across the Eastern slopes especially in Polonnaruwa with a maximum of 15 mm on 1st November.

Monitored and Predicted Wind: From 28th Oct-3rd Nov, winds at 1.5 km height were mostly from the northwest at speeds ranging 6-10 m/s .From 6th-12th Nov, wind speeds are predicted to be low, in the range of 1-5 m/s coming from the North.

Monitored Sea and Land Temperature: Sri Lanka recorded seasonable temperatures across its regions. The Eastern plains were the warmest, with maximum temperature of 34°C , compared to 29°C in the Eastern hills. The sea surface temperature was warmer than average around Northern and Western coasts, ranging between 1 °C and 1.5 °C above average.