Mekong River Commission Regional Flood Management and Mitigation Centre Weekly Dry Season Situation Report for the Mekong River Basin Prepared at: //, covering the week from the nd th uary. Weather Patterns, General Behaviour of the Mekong River and Dry Season Situation General weather patterns: No critical weather during last week General behaviour of the Mekong River: Compared to the Long Term Average (LTA), water levels at stations along mainstream Mekong River were fluctuating above or about the LTA, except Kompong Cham to Koh Khel and Prek Kdam that were fluctuating below the LTA. For stations from Chiang Saen and Luang Prabang Compared to long term average (LTA), water levels at these stations were fluctuated above the LTA during last week. For stations from Chiang Khan, Vientiane and Nong Khai and Paksane Compared to long term average (LTA), water levels at these stations were fluctuated above or about the LTA during last week. For stations from Nakhon Phanom to Pakse Compared to long term average (LTA), water levels at these stations were fluctuated above the LTA during last week. For stations from Stung Treng to Kompong Cham Compared to long term average (LTA), water levels at these stations were fluctuated above the LTA during last week, except Kompong Cham that was below the LTA. For stations from to Prek Kdam Compared to long term average (LTA), during last week the water levels at these stations were fluctuated below the LTA, except Kho Khel that was above the LTA. Tan Chau and Chau Doc Compared to long term average (LTA), during last week the water levels at these stations were fluctuating about or above the LTA, respectively. Dry season situation During last week, all water levels at stations along mainstream Mekong River were fluctuating above or about the LTA, except Kompong Cham to Koh Khel and Prek Kdam that were fluctuating below the LTA. There was small rain happened in the upper and lower parts of LMB, and the accumulated weekly rainfall was less than mm (see Table A). For more details see the following annexes: - Tables for observed water levels and rainfall for the last week in Annex A - The water levels graphs showing the observed water levels for the season in Annex B MRC Weekly Dry Season Situation Report Week nd th uary Page
Monday th uary Annex A: Graphs and Tables Table A: observed water levels Unit: m Jinghong Chiang Saen Luang Prabang Chiang Khan Vientiane Table A: observed rainfall. Nongkhai Paksane Nakhon Phanom Thakhek M ukdahan Savannakhet / -...................... / -...................... / -...................... / -...................... / -...................... / -. -. -. -. -. -. -.......... / -. -. -. -. -. -. -.......... / -. -. -. -. -. -. -.......... Jinghong Chiang Saen Luang Prabang Chiang Khan Vientiane Nongkhai Paksane Nakhon Phanom Thakhek M ukdahan Savannakhet Note: data from China is available during the flood season only ( June- October ) Khong Chiam P a k s e Stung Treng K r a tie Kom pong Cham ( B a s s a c ) P o r t Koh Khel Neak Luong Prek Kdam Tan Chau Chau D oc Unit: mm / -... nr. nr. nr. nr. nr nr nr nr nr - nr nr nr nr - / -... nr. nr. nr. nr. nr nr nr nr nr - nr. nr.. / -. nr. nr. nr. nr. nr. nr nr nr nr nr - nr. nr.. / -... nr. nr. nr. nr. nr nr nr nr nr - nr. nr. - / -... nr. nr. nr. nr. nr nr nr nr nr -. nr nr.. / -. -. -. -. -. -. - nr nr. nr - nr nr nr.. / -. -. -. -. -. -. - nr nr. nr - nr nr nr.. / -. -. -. -. -. -. - nr nr nr nr - nr nr nr nr. Sum RF...................... Khong Chiam Pakse Stung Treng Kratie Kom pong Cham (Bassac) Port Koh Khel Neak Luong Prek Kdam Tan Chau Chau Doc nr: no rain Page MRC Weekly Dry Season Situation Report Week nd th uary
Monday th uary Annex B: Season Water Level Graphs This Annex has the water level graphs of the report date. These graphs are distributed weekly by email together with the River Monitoring Bulletin. HYDROGRAPH AT AM OF MEKONG TONLE SAP AND BASSAC AT MAINSTREAM STATIONS IN DRY SEASON FROM NOVEMBER TO MAY Water Level of Mekong at Chiang Saen - Min WL Average- - - Water Level of Mekong at Luang Prabang - Min WL Average- - - Water Level of Mekong at Chiang Khan - Min WL Average- - - MRC Weekly Dry Season Situation Report Week nd th uary Page
Monday th uary Water Level of Mekong at Vientiane - - Min WL Average- - - Water Level of Mekong at Nong Khai - Min WL Average- - - Water Level of Mekong at Paksane - Min WL Average- - - Water Level of Mekong at Nakhon Phanom - Min WL Average- - - Page MRC Weekly Dry Season Situation Report Week nd th uary
Monday th uary Water Level of Mekong at Mukdahan - Min WL Average- - - Water Level of Mekong at Pakse - Min WL Average- - - Water Level of Mekong at Stung Treng - Min WL Average- - - Water Level of Mekong at Kratie - Min WL Average- - - MRC Weekly Dry Season Situation Report Week nd th uary Page
Monday th uary Water Level of Mekong at Kampong Cham - Min WL Average- - - Water Level of Mekong at Chaktomuk - Min WL Average- - - Water Level of Bassac at Koh Khel - Min WL Average- - - Water Level of Mekong at Neak Luong - Min WL Average- - - Page MRC Weekly Dry Season Situation Report Week nd th uary
Monday th uary Water Level of Tonle Sap at Prek Kdam - Min WL Average- - Water Level of Mekong at Tan Chau - - Min WL Average- - - Water Level of Bassac at Chau Doc - - Min WL Average- - - MRC Weekly Dry Season Situation Report Week nd th uary Page