Weekly Hydro-meteorological Report, 9 August 2012

Summary

Monitoring

Weekly Monitoring: During the last week (1st-7th August) rainfall ranged between 0mm-20mm. There was no significant rainfall experienced at the beginning of the week. A scattered rainfall was experienced during 4th-5th of August almost all over the island, but maximum rainfall had not exceeded 10mm. In the latter part of the week low rainfall was experienced up to about 5mm and while some parts of the Gal Oya basin experienced up to about 20mm rainfall.

Monthly Monitoring: During July, southern half of the island experienced a below average rainfall with an increased below average particularly in the Western and South Western regions. It clearly reflects the deficit of the South West Monsoon rainfall up to now. The rest of the island experienced an above average rainfall with a higher intensity in the Trincomalee district while some parts of the Moneragala district also experienced an above average rainfall.

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Weekly Hydro-meteorological Report, 2 August 2012

Summary

Monitoring Weekly Monitoring: During the last week (24th-31st July) there was no significant rainfall experienced and dry conditions prevailed throughout the country. Monthly Monitoring: During July, southern half of the island experienced a below average rainfall with an increased below average particularly in the Western and South Western regions. It clearly reflects the deficit of the South West Monsoon rainfall up to now. The rest of the island experienced an above average rainfall with a higher intensity in the Trincomalee district while some parts of the Moneragala district also experienced an above average rainfall. 

Predictions 

7 Day Prediction: For the coming week an accumulated rainfall of 5 mm - 15 mm is predicted particularly in some parts of the South Western region, Western region. IMD WRF Model Forecast & IRI forecast: 1mm- 8mm rainfall is predicted for some parts of Puttalam district, Colombo, Gampaha, Kalutara and Galle districts on the 3rd of August. Rainfall is predicted for the same districts with an increased rainfall of about 36mm particularly for Colombo, Gampaha and Kalutara districts on the 4th August. No rainfall is predicted for the rest of the country. NOAA models forecast up to 20 mm of rainfall till the 5th of August for the entire island. 

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Weekly Hydro-meteorological Report, 12 July 2012

Summary

Monitoring

Weekly Monitoring: During the last week (4th June- 9th July) rainfall ranged between 0 mm - 95 mm. South and

Central regions of the island received light rainfall on the 4th, 5th & 7th of July while rainfall was observed in

North Central and Central regions on the 6thof July. Heavy rainfall was observed in South Eastern region of the

island on 8th of July and Central to Western regions on 9th of July.

Monthly Monitoring: During June, parts of Puttalam, Mannar, Kilinochchi, Jaffna, Anuradhapura and

Trincomalee districts experienced above average rainfall, up to a surplus of 20 mm. The rest of the country

experienced below average rainfall.

Predictions

7 Day Prediction: For the coming week an accumulated rainfall of 5 - 55 mm is predicted for the South Western

and Northern regions of the island.

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Weekly Hydro-meteorological Report, 07 July 2012

Summary

Monitoring

Weekly Monitoring: During last week (27th June- 2nd July) rainfall ranged between 5 mm - 30 mm. The North- eastern regions of the island received rainfall on the 27th June and 1st of July. Heavy rainfall was observed in the Southern half of the island during 30th June - 2nd July.

Monthly Monitoring: During the month of June some parts of Puttalam, Mannar, Kilinochchi, Jaffna, Anuradhapura and Trincomalee districts experienced above average rainfall, but the surplus is below 20 mm. The rest of the country experienced below average rainfall.

Predictions

7 Day Prediction: For the coming week an accumulated rainfall of 5 mm - 55 mm is predicted for the southern half of the island.

IMD WRF Model Forecast & IRI forecast: WRF Model Predicts 1 mm - 65 mm rainfall particularly for Gampaha, Colombo, Kalutara, parts of Puttalam and Galle districts on the 06th of July, and rainfall shall drop while spreading towards eastward. For the 07th of July, the Model Predicts 1 mm - 125 mm rainfall for Colombo, Kalutara and Gampaha districts, and rainfall shall decrease towards North, South and eastward directions, and no rainfall is predicted for the eastern side of the island. IRI models forecast up to 20 mm of rainfall for the entire island.


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Weekly Hydro-meteorological Report, 28 June 2012

Summary

Monitoring

Weekly Monitoring: During last week (19th - 26th June) rainfall ranged between 5 mm - 20 mm. On the 21st the entire country received rainfall. Maximum 20 mm of daily rainfall was recorded at Matara, Kalutara, Galle on 23rd, 24thand Batticaloa on 25th-26th respectively. On the remaining days less than 20 mm of rainfall was scattered in different places of Sri Lanka.

Monthly Monitoring: During the month of May some parts of Galle, Matara, Ratnapura and Hambantota districts experienced above average rainfall, but the surplus is below 30 mm. Below average rainfall was experienced in rest of the country.

Predictions

7 Day Prediction: For the coming week, accumulated rainfall of 5 mm - 75 mm is predicted for the Southwestern regions of the island. An accumulated rainfall 5 mm – 55 mm of rainfall is predicted for the entire island.

Critique of Water Management in Sri Lanka

Current Problems in Water Management as Seen by a Parliamentarian

From the Daily Mirror with Video in Sinhala  - Anura Kumara Dissanayake claims that the ongoing drought is not driven meteorologically. 

Weekly Hydro-meteorological Report, 21 June 2012

Summary

Monitoring

Weekly Monitoring: During last week (13th - 18th June) rainfall ranged between 5 mm - 50 mm. On the 13th & 14th rainfall observed for the Southwestern and Western regions of Sri Lanka. On 17th & 18th entire country received rainfall. However compared to 13th, 14th, 17th & 18th there was no considerable rainfall on 15th & 16th.

Monthly Monitoring: During the month of May some part of Galle, Matara, Ratnapura and Hambantota districts experienced above average rainfall but the surplus is below 30 mm. Below average rainfall was experienced in the rest of the country.

Predictions

7 Day Prediction: For the coming week, an accumulated rainfall of 5 mm - 55 mm is predicted for the Southwestern regions of the island.