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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