Weekly Hydro-meteorological Report, 18 December, 2014

Highlights

Monitoring and Prediction

Rainfall up to 250 mm is expected in the eastern sea and the eastern coast of Sri Lanka during the next few days. High rainfall was observed throughout the country in the previous week with highest rainfall in South-western region of Sri Lanka as well as in Trincomalee and Polonnaruwa regions. Rainfall shall decrease during next week in the entire country but not in a significant level. The northern sea region of Sri Lanka shows a below average sea surface temperature.
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Weekly Hydro-meteorological Report, 11 December, 2014

Highlights

Monitoring and Prediction

Light rainfall was observed throughout the country in the previous week with highest rainfall in the Ampara, Batticaloa and Ratnapura. Northern and north-eastern regions received highly above average rainfall during November while below climatological average rainfall was observed in the rest of the country. Rainfall shall decrease during next week in the entire country but not in a significant level. The northern sea region of Sri Lanka shows a below average sea surface temperature.
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Weekly Hydro-meteorological Report, 4 December, 2014

Highlights

Monitoring and Prediction

Heavy rainfall was observed throughout the country in the previous week with highest rainfall in the northern region. Northern and north-eastern regions received highly above average rainfall during November while below climatological average rainfall was observed in the rest of the country. Rainfall shall decrease during next week in the entire country but not in a significant level. The entire sea region of Sri Lanka shows a neutral sea surface temperature
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Weekly Hydro-meteorological Report, 27 November, 2014

Highlights

Monitoring and Prediction

Heavy rainfall was observed throughout the country in the previous week with highest rainfall in the northern region. Rainfall shall decrease during next week in the southern and central regions but not in a significant level. The western sea region of Sri Lanka shows an above average sea surface temperature.
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Weekly Hydro-meteorological Report, 20 November, 2014

Highlights

Monitoring and Prediction

High rainfall was observed throughout the country in the previous week with dry conditions in one or two days arising in between. Rainfall shall continue to increase during next week but not in a significant level. The entire sea region of Sri Lanka shows a neutral sea surface temperature.
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Weekly Hydro-meteorological Report, 13 November, 2014

Highlights

Monitoring and Prediction

November is usually the month with the heaviest rainfall in Sri Lanka (average up to mm/ month). After the extremely high rainfall two weeks back, the last week had been relatively dry all over Sri Lanka. However, the US NOAA GFS model predicts rainfall in excess of 125 mm for the coming week from 12-18th of November; the forecast is for high rainfall for the following week as well - 19th-25th of November. This NOAA-CFS model has been skillful lately. The rainfall predictions from the Indian Meteorological Department also predict high rainfall in the next three days.

NCEP GFS Ensemble Rainfall forecast 12th- 18th November 2014

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Weekly Hydro-meteorological Report, 5 November, 2014

Highlights

Monitoring and Prediction

Very heavy rainfall was observed throughout the country and mostly around the south-west and central regions during the previous week and rainfall shall decrease significantly in the entire country during next week. The entire sea region of Sri Lanka shows a neutral sea surface temperature.
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