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Friday, December 13, 2013

Weekly Hydro-meteorological Report, 12 December, 2013


Highlights

Monitoring and Prediction
Rainfall shall increase gradually till 15th of December 2013. However, Northern, North-central, and Central provinces are likely to experience moderate rainfall during coming week (10th-17th December 2013). For coming two days (13th & 14th December), Northwestern, Western and central provinces are likely to observe heavy rainfall and rainfall shall decrease towards the North.

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Wednesday, December 11, 2013

Weekly Hydro-meteorological Report, 04 December, 2013


Highlights

Monitoring and Prediction
Rainfall shall increase gradually till 13th of December 2013. However, Northern, North-central, Eastern and Central provinces are likely to experience significant heaviest rainfall during coming week (5th-12th December 2013). For coming two days (5th & 6th December), Northern, North-central, Eastern and Central provinces are likely to observe heavy rainfall and rainfall shall spread towards Southwestern direction in a reducing manner.

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Friday, November 29, 2013

Weekly Hydro-meteorological Report, 28 November, 2013


Highlights

Monitoring and Prediction
Rainfall shall decrease gradually till 3rd of December and shall increase gradually thereafter. However, significant rainfall shall not observe for the coming week (29th November-5th December 2013). For coming two days (29th & 30th December), Ratnapura district shall receive more rainfall compared to the rest of the island. Heavy rainfall is likely to observe for parts of Badulla, Moneragala, Nuwara Eliya and Ratnapura districts during 26th November-1st December 2013.

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Weekly Hydro-meteorological Report, 21 November, 2013


Highlights

Monitoring and Prediction
Rainfall shall increase gradually till 27th of November and shall decrease gradually thereafter till 2nd of December. Western coast shall receive significant high rainfall during 26th-29th November. However, significant minimum rainfall is likely to observe during 1st-4th December 2013. For the coming week (22nd-28th November) western coastal regions and Badulla and, Moneragala districts are likely to observe more rainfall compared to the rest of the island.

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Weekly Hydro-meteorological Report, 14 November, 2013


Highlights

Monitoring and Prediction
Rainfall shall decrease gradually till 21st of November and shall increase gradually thereafter. However, eastern half of the island shall experience more rainfall compared to the rest of the island during coming week (14th-18th November 2013). Jaffna Peninsula shall receive heaviest rainfall during next few days (around 17th November).

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Weekly Hydro-meteorological Report, 31 October, 2013


Highlights

Monitoring and Prediction
Rainfall shall increase till 1st of November and shall remain more or less constant till 17th. However, western regions shall expect significant rainfall events during 5th-7th November. Heavy rainfall is likely to observe for the Moneragala, Badulla districts and nearby regions during coming two days (1st & 2nd November).

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Wednesday, October 30, 2013

Weekly Hydro-meteorological Report, 24 October, 2013


Highlights

Monitoring and Prediction
Rainfall shall increase during 24th-27th and is likely to decrease gradually till the end of month (October 2013). However, significant rainfall event is likely to observer around 26th-28th October for the western slopes. Heavy rainfall is likely to observe for the southwestern regions and northeastern regions during coming two days (26th & 27th October).

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Weekly Hydro-meteorological Report, 17 October, 2013


Highlights

Monitoring and Prediction
Heavy rainfall is likely to observe for Batticaloa, Galle-Gampaha and parts of Anuradhapura districts during coming two days (18th & 19th October). South-western regions shall receive heavy rainfall during 16th-22nd October 2013.

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Weekly Hydro-meteorological Report, 10 October, 2013


Highlights

Monitoring and Prediction
Heavy rainfall is likely to observe for Matara to Jaffna during coming two days (11th & 12th October). South-western regions shall receive more rainfall during 9th-15th October 2013. For the entire country, rainfall shall increase gradually after 11th of October.

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Weekly Hydro-meteorological Report, 3 October, 2013


Highlights

Monitoring and Prediction
Galle district shall receive higher rainfall than the other regions on tomorrow (4th October 2013) and rainfall shall decrease thereafter. However, rainfall is not predicted till 5th of October and 8th-12th October 2013. During 5th-8th low amount of rainfall is likely to observe. After 12th October rainfall shall increase gradually.

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Weekly Hydro-meteorological Report, 26 September, 2013


Highlights

Monitoring and Prediction
Northern regions, specially the Jaffna district shall receive more rainfall compared to the entire country. However entire Island shall not observe significant rainfall events during coming week (27th September-3rd October).

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Weekly Hydro-meteorological Report, 18 September, 2013


Highlights

Monitoring and Prediction
Kalutara to Puttalam districts shall receive heavy rainfall on coming two days (19th & 20th September). Ongoing rainfall is likely to decrease gradually till 25th with slight variations. Rainfall is not predicted for 25th-26th. No significant rainfall events are expected.

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Weekly Hydro-meteorological Report, 12 September, 2013


Highlights

Monitoring and Prediction
Puttalam to Galle districts and Jaffna peninsula are likely to receive heavy rainfall on coming two days (14th & 15th September) and shall persist till 16th September. However, ongoing rainfall is likely to decrease gradually till 24th September. Significant rainfall is note predicted for the entire country, except for Eastern coasts which significant rainfall is likely to observe during 13th-14th September.

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Weekly Hydro-meteorological Report, 5 September, 2013


Highlights

Monitoring and Prediction
Puttalam to Kalutara districts are likely to receive heavy rainfall on coming two days (6th & 7th September). However, Jaffna, Batticaloa, Northern Ampara and Badulla districts shall receive high amount of predicted rainfall during 2nd-7th. Ongoing rainfall is likely to increase gradually during 29th August-1st September. Thereafter rainfall shall decrease till 7th. For the entire country, ongoing rainfall is likely to increase gradually till 10th September and shall remain more or less constant (4-6 mm/day) during 10th-13th. No significant rainfall events are predicted for the entire country, except for the western coasts and eastern slopes during 12th-14th and 9th-11th September, respectively.

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Weekly Hydro-meteorological Report, 29 August, 2013


Highlights

Monitoring and Prediction
During past week (20th-26th August) rainfall was quite low compared to the month of July. Ratnapura and Nuwara Eliya districts are likely to receive heavy rainfall on today (29th August) compared to rest of the regions of Sri Lanka. However, Matara-Batticaloa and Puttalam-Jaffna districts shall receive lowest amount of predicted rainfall during 29th-30th August. Ongoing rainfall is likely to increase gradually during 29th August-1st September. Thereafter rainfall shall decrease till 7th September. No significant rainfall events are predicted for the entire country, except for the Eastern slopes and coasts during 1st August-3rd September.

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Weekly Hydro-meteorological Report, 22 August, 2013


Highlights

Monitoring and Prediction
During past week (15th-21st August) rainfall was quite low compared to the month of July. Kalutara district is likely to receive heavy rainfall on tomorrow (23rd August) compared to rest of the regions of Sri Lanka. Ongoing rainfall is likely to decrease gradually till the end of August, but rainfall shall not exceed 2 mm/day. No significant rainfall events are predicted for the entire country, except for the Southern regions. Southern regions are likely to experience significant rainfall event during 23rd-25th August.

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Weekly Hydro-meteorological Report, 15 August, 2013


Highlights

Monitoring and Prediction
Rainfall was quite heavy in July in the Southwestern regions of Sri Lanka. Compared to the rest of the island, small regions in Galle & Kegalle to Puttalam are likely to receive heavier rainfall on tomorrow (16th of August). Ongoing rainfall is likely to increase drastically during 17th-19th August. Thereafter rainfall shall fluctuate below 3 mm/day till September. However, eastern coasts and southern regions are likely to experience significant rainfall event during 18th-20th August.

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Thursday, August 8, 2013

Weekly Hydro-meteorological Report, 8 August, 2013


Highlights

Monitoring and Prediction
Rainfall was quite heavy in July in the Southwestern regions of Sri Lanka. Compared to the rest of the island, the coastal belts of Galle to Puttalam are likely to receive heavier rainfall on coming two days (9th & 10th of August). Trincomalee district shall receive comparable amount of rainfall during 7th-12th August. Ongoing rainfall shall increase further, but vary between 4mm/day. However, eastern coast regions shall experience heavier rainfall during next week (9th-15th August) compared to rest of the regions. Significant rainfall events are not expected during next week period (9th-15th August).

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Friday, August 2, 2013

Weekly Hydro-meteorological Report, 1 August, 2013


Highlights

Monitoring and Prediction
Rainfall was quite heavy in June in the Southern half of Sri Lanka, and July is predicted to be lower although with wetter Southwestern regions in the next week. Compared to the rest of the island, the coastal belts of Galle to Gampaha is likely to receive heavier rainfall on coming three days (2nd, 3rd and 4th of August). Ongoing rainfall shall decrease further. Rainfall is not predicted till 5th August. Rainfall shall increase gradually during 5th-12th August. Significant rainfall events are not expected during next week period (2nd-12th August).

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Weekly Hydro-meteorological Report, 25 July, 2013


Highlights

Monitoring and Prediction
Rainfall was quite heavy in June in the Southern half of Sri Lanka, and July is predicted to be lower although with wetter Southern regions in the next week. Compared to the rest of the island, the coastal belts of Galle to Kalutara is likely to receive heavier rainfall on coming two days (26th and 27th of July). Ongoing rainfall shall decrease gradually till 2nd August with different rates. However, eastern coasts shall receive significant rainfall events around 28th July & 2nd August.

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Weekly Hydro-meteorological Report, 18 July, 2013


Highlights

Monitoring and Prediction
Rainfall was quite heavy in June in the Southern half of Sri Lanka, and July is predicted to be lower although with wetter Southwestern regions in the next week. Compared to the rest of the island, the coastal belts of Gampaha to Galle is likely to receive heavier rainfall on coming two days (19th and 20th of July). Ongoing rainfall shall decrease gradually till 21st-23rd July & increase thereafter till 26th. However, relatively less rainfall event around 20th (trough) shall be expected for western coasts.

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Weekly Hydro-meteorological Report, 11 July, 2013


Highlights

Monitoring and Prediction
Rainfall was quite heavy in June in the Southern half of Sri Lanka, and July is predicted to be lower although with wetter Southwestern regions in the next week. Compared to the rest of the island, the coastal belts of Puttalam to Galle is likely to receive heavier rainfall on coming two days (12th and 13th of July). Ongoing rainfall shall increase gradually till 14th July & decrease drastically thereafter till 17th. However, significant rainfall events around 14th (peak) & 17th (trough) shall be expected for many regions.

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Weekly Hydro-meteorological Report, 4 July, 2013


Highlights

Monitoring and Prediction
Rainfall was quite heavy in June in the Southern half of Sri Lanka, and July is predicted to be lower although with wetter Southwestern regions in the next week. Compared to the rest of the island, the coastal belts of Matara to Colombo is likely to receive heavier rainfall on coming two days (5th and 6th of July). Ongoing rainfall shall decrease gradually till 9th July & increase slightly thereafter till 11th.However, for the Eastern coast, there is likely be comparatively higher rainfall than the other regions. Significant rainfall event shall observe around 11th.

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Thursday, August 1, 2013

Weekly Hydro-meteorological Report, 27 June, 2013


Highlights

Monitoring and Prediction
In the coming week Southwestern regions shall experience higher rainfall compared to the rest of the island. Compared to the rest of the island Kalutara, Galle and Ampara districts shall receive heavier rainfall on the 28th of June. However, no rainfall is being shown for the 29th for the entire country. Existing rainfall shall increase slightly after June 27th and shall persist with variations (6-9 mm/day) till 10th of July in most regions of Sri Lanka. Around 4th July rainfall events shall be significant for the western coastal regions and Southern regions of Sri Lanka.

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Friday, June 21, 2013

Weekly Hydro-meteorological Report, 20 June, 2013


Highlights

Monitoring and Prediction
In the coming week, Southwestern regions shall experience significant amount of rainfall, especially Colombo & Kalutara districts. Heavy rainfall shall be observed in the western coastal belt of the island in the coming two days (21st and 22nd June). However, in most of regions of Sri Lanka, existing rainfall shall increase slightly till 25th and it shall start to reduce afterwards, till 27th. There shall be significant rainfall around 25th for western coastal regions.

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Thursday, June 13, 2013

Weekly Hydro-meteorological Report, 13 June, 2013


Highlights

Monitoring and Prediction
In the coming week, Southwestern regions shall experience significant amount of rainfall, especially Colombo & Kalutara districts. Heavy rainfall shall be observed in the western coastal belt of the island in the coming two days (14th and 15th June). However, in most of regions of Sri Lanka, existing rainfall shall increase gradually till 17th and thereafter it shall show a decreasing trend. Most of the regions shall experience significant amount of rainfall around 17th June.

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Thursday, June 6, 2013

Weekly Hydro-meteorological Report, 6 June, 2013


Highlights

Monitoring and Prediction
In the coming week, Southwestern regions shall experience significant amount of rainfall, especially the Colombo district. Heavy rainfall shall be observed in the coastal belt between Gampaha-Galle in the coming two days (6th and 7th June). However, in most of regions of Sri Lanka, existing rainfall shall increase and shall reach a maximum on the 10th of June, for the next 30 day period.

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Wednesday, May 29, 2013

Weekly Hydro-meteorological Report, 29 May, 2013


Highlights

Monitoring and Prediction
For the most of the parts in Sri Lanka, existing rainfall shall decrease till 24th and it shall increase thereafter till the end of the May. However, there shall not be any significant rainfall events for the entire country, except for the Western coasts. For the western coasts, on 24th there shall be significant rainfall trough. Southwestern regions shall receive 5-55 mm of rainfall for the next week. However, there shall be 60-70% probability for temperature to be above normal in the country during June to August 2013.

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Monday, May 27, 2013

Weekly Hydro-meteorological Report, 23 May, 2013


Highlights

Monitoring and Prediction
In the coming week, Southwestern regions shall experience significant amount of rainfall, especially in the Galle district, heavy rainfall shall be observed in the coming two days (30th and 31st May). However, in most of regions of Sri Lanka, existing rainfall shall decrease during 31st May-2nd June. Thereafter it shall gradually increase till 10th of May. However, northern &southern regions shall not experience the same phenomena as other regions.

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Weekly Hydro-meteorological Report, 16 May, 2013


Highlights

Monitoring and Prediction
For the most of the parts in Sri Lanka, existing rainfall shall decrease till 18th and it shall increase thereafter. However, there shall not be any significant rainfall events. However, southern 1/3rd shall receive more rainfall compared to the rest of the regions in the island. Jaffna peninsula shall receive low amount of rainfall on 18th May 2013.

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Weekly Hydro-meteorological Report, 8 May, 2013


Highlights

Monitoring and Prediction
Existing rainfall shall continue till 9th and South-western regions of Sri Lanka shall receive more rainfall in the coming week (7th-13th May, 2013) Entire country shall receive peak rainfall around 9th May, compared to rainfall observed on previous week.

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Thursday, May 2, 2013

Weekly Hydro-meteorological Report, 2 May, 2013


Highlights

Monitoring and Prediction
South-western regions of Sri Lanka shall receive rainfall in the coming week (2nd-6th May, 2013) and on 3rd & 4th May, South-western coastal regions shall receive heavy rainfall compared to other regions of Sri Lanka. Western regions shall receive peak rainfall around 5th & 6th May. During May 2013 to July 2013, there is a 45-50% probability for temperature to be above normal in the country while the rainfall is to be climatological.

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Friday, April 26, 2013

Weekly Hydro-meteorological Report, 24 April, 2013


Highlights

Monitoring and Prediction
Northern regions of the island shall receive rainfall for the coming two days (25th and 26th April 2013) and North-eastern regions of the island shall receive rainfall during 23rd-29th April. Existing rainfall condition shall increasing with slight variation around 29th April and western slopes shall receive more rainfall. During May 2013 to July 2013, there is a 45-50% probability for temperature to be above normal in the country while the rainfall is to be climatological.

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Friday, April 19, 2013

Weekly Hydro-meteorological Report, 18 April, 2013


Highlights

Monitoring and Prediction
Western half of the island shall receive rainfall during 17th-23rd April. For the coming two days rainfall shall be concentrated in the Kalutara, Ratnapura, Kegalle district, some places in Polonnaruwa district (on 19th) and Nuwara Eliya district (on 20th). For the entire country existing rainfall conditions shall decrease gradually till 21st and increase thereafter.

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Weekly Hydro-meteorological Report, 10 April, 2013


Highlights

Monitoring and Prediction
Western half of the island shall receive rainfall and more rainfall shall be concentrated to Kalutara district during 9th-15th April. For the coming two days (11th & 12th April) Uva, Sabaragamuwa and Central provinces shall expect heavy rainfall compared to other regions of the island.

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Thursday, April 4, 2013

Weekly Hydro-meteorological Report, 4 April, 2013


Highlights

Monitoring and Prediction
Southern half of the island shall be wetter than the rest of the regions for 2nd-8th April. For the coming two days (5th and 6th April) rainfall is expected in Ratnapura district. There is a 45-50% probability for temperature to be above normal in the country from April to June.

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Monday, April 1, 2013

Weekly Hydro-meteorological Report, 28 March 2013


Highlights

Monitoring and Prediction
Heavy rainfall was observed throughout the country in spells of 2 to 3 days in the past week. No extreme rainfall events were observed in the past week nor predicted for the next couple of weeks. The Sea Surface Temperature around Sri Lanka continues to have a positive anomaly.

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Weekly Hydro-meteorological Report, 20 March 2013


Highlights

Monitoring and Prediction
Western Slopes shall receive much higher rainfall compared to the rest of the country. Western coastal regions also receive high amounts of rainfall until the start of April. Northern and Southern regions shall receive relatively low rainfall.

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Friday, March 15, 2013

Weekly Hydro-meteorological Report, 14 March 2013


Highlights

Monitoring and Prediction
Entire country shall receive less than 20 mm of rainfall during 13th-18th March, but higher magnitude of rainfall is predicted for the western coastal districts of Sri Lanka. Hambantota district shall be dry on 17th March 2013 and Nuwara Eliya district shall receive 65 mm of rainfall.

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Thursday, March 7, 2013

Weekly Hydro-meteorological Report, 7 March 2013


Highlights

Monitoring and Prediction
Northern regions shall expect high rainfall (65-85 mm) compared to the rest of the regions of Sri Lanka during 6th-12th March. During 8th-9th March Hambantota district shall be dry and Ratnapura district shall receive 65 mm of rainfall. However rainfall shall decrease drastically during 7th-9th March and shall remain constant for more regions.

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Thursday, February 28, 2013

Weekly Hydro-meteorological Report, 28 February 2013


Highlights

Monitoring and Prediction
Eastern coastal belt of Sri Lanka, shall receive less than 65 mm of rainfall during 27th February-5th March and rainfall shall spreads in reducing manner towards west direction. More or less entire country shall receive no rainfall condition on the 1st & 2nd of March 2013. However rainfall shall increase gradually during 28th February-1st March and shall gradually decrease thereafter with minor fluctuations.

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Thursday, February 21, 2013

Weekly Hydro-meteorological Report, 21 February 2013


Highlights

Monitoring and Prediction
Except for the eastern coastal belt of Sri Lanka, there shall be no rainfall for the period from 20th-26th February. Certain parts of Batticaloa and Ampara districts shall receive rainfall less than 2.5 mm, on the 22nd & 23rd February 2013. However a drastic drop in rainfall shall be experienced during 21st-23rd and shall gradually increase thereafter.

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Thursday, February 14, 2013

Weekly Hydro-meteorological Report, 14 February 2013


Highlights

Monitoring and Prediction
Significant amount of rainfall is predicted for Southern regions of Sri Lanka for the coming week. For 15th & 16th February, 2013 Ratnapura and Kegalle districts shall receive a considerable amount of rainfall. However rainfall shall decrease gradually till 22nd for entire Sri Lanka.

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Monday, February 11, 2013

Weekly Hydro-meteorological Report, 7 February 2013


Highlights

Monitoring and Prediction
Heavy rainfall is predicted for Ampara, Batticaloa, Hambantota and Moneragala districts during 6th February-12th February 2013. However, there shall not be high rainfall observations during the next week (7th-14th February), except for Southern regions. Rainfall is not predicted for eastern coast and slopes regions till 9th February..

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Thursday, January 31, 2013

Weekly Hydro-meteorological Report, 31 January 2013


Highlights

Monitoring and Prediction
Frequent variation of heavy rainfall is expected for East, & South-eastern regions of Sri Lanka, for the period of 30th January-4th February. However, during the first 2 weeks of February the rainfall shall be comparatively lower than the rainfall observed during month of January.

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Thursday, January 24, 2013

Weekly Hydro-meteorological Report, 24 January 2013


Highlights

Monitoring and Prediction
Very heavy rainfall is expected for East, & South-eastern Sri Lanka, and heavy rainfall shall be experienced in the rest of the country, for the period of 23rd-28th January. The monthly predictions indicate substantial amount of rainfall for the entire country around 28th-30th January. However, prevailing rainfall condition shall start to diminish after 24th January and shall persist during the first two weeks of February.

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Monday, January 21, 2013

The Climate over Sri Lanka during Yala of 2012

Large parts of the island were under drought this “Yala” which refers to the cultivation season that starts after the April-May rains. Impacts of droughts have led to shortages in drinking water in some areas and wells and rivers drying up and clapped landscapes. The water levels in hydro-power generating catchments dropped precipitously. There have been regular power-cuts affecting household, industrial, services and office work. Farmers have been affected in large swathes of the island particularly in Polonnaruwa, Anurhadhapura, Ampara and Batticaloa districts.

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Friday, January 18, 2013

Weekly Hydro-meteorological Report, 17 January 2013


Highlights

Monitoring and Prediction
Heavy rainfall is not expected for the entire country during 15th-22nd January. However, Eastern segment of Sri Lanka shall receive high rainfall compared to rest of Sri Lanka. The monthly predictions indicates substantial amount of rainfall for the entire country around 22nd-30th. However, present rainfall condition shall diminish after January..

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Friday, January 11, 2013

Weekly Hydro-meteorological Report, 10 January 2013


Highlights

Monitoring and Prediction
Heavy rainfall shall diminish during 9th-15th January for the entire country. However, significant amount of rainfall shall be received for the southern 2/3rd of Sri Lanka during 8th-13th January. The monthly predictions point to an Extreme amount of rainfall for the entire country around 22nd-24th. Extreme rainfall shall persist from 22nd till end of January.

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Tuesday, January 8, 2013

Weekly Hydro-meteorological Report, 07 January 2013


Highlights

Monitoring and Prediction
Heavy rainfall accumulation is expected for the 6th-12thJanuary for the North-eastern regions of Sri Lanka and moderate rainfall is expected for the rest of the island. Hambantota, Monaragala, Ampara and few regions of Batticaloa districts shall receive heavy rainfall for the 5th-10th January 2013. The monthly predictions point to significantly high rainfall around 22nd-25th January for the entire country, however higher amount of rainfall shall expect for the western slopes of Sri Lanka.

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Weekly Hydro-meteorological Report, 03 January 2013


Highlights

Monitoring and Prediction
Rainfall accumulation of more than 135 mm is expected for the 2nd-8thJanuary for the entire country. 1/3rd of Southern Sri Lanka shall receive extremely heavy rainfall, and heavy showers shall be experienced in the remaining regions of Sri Lanka. The monthly predictions point to significantly high rainfall on the 22nd of January for the entire country, however considerable amount of rainfall shall persists during the month of January for entire Sri Lanka.

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