Highlights

Rainfall Prediction: From 11th -17th Nov, heavy rainfall (105-135 mm) is predicted for the Western plains, Western hills and Northern Plains; while fairly heavy rainfall (55-105 mm) is predicted for the Southern plains , Eastern plains and Eastern hills. From 18th -24th Nov , the rainfall shall intensify further with a similar spatial pattern.

Monitored Rainfall: During 4th  – 10th November, the average rainfall across Sri Lanka totalled 55 mm. There was higher rainfall across the Western and Eastern slopes especially in Anuradhapura with a maximum of  100 mm on 6th November.

Monitored and Predicted Wind: From 3rd -9th Nov, winds at 1.5 km height were mostly from the north and northwest at speeds ranging 4-8 m/s. From 12th-18th Nov, wind speeds are predicted to be low, in the range of 1-6 m/s coming from the North East.

Monitored Sea and Land Temperature: Sri Lanka recorded seasonable temp across its regions The Eastern plains were the warmest, with maximum temp of 32.5°C , compared to 27.1°C in the Eastern hills. The sea surface temp was warmer than average around Northern ,North Western and South Eastern coasts, ranging between 1 °C and 1.5 °C above average.