Report for water situation on Monday 12 August 2013

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Current Situation: normal, office hours 8.30 – 16.30
Water Watch and Monitoring System <strong>for</strong> Warning Center Royal Irrigation Department , MOAC
Tel: 0 2669 2560 Fax 0 2243 6956,0 2241 3350,0 22431098 Hotline: 1460
http://www.rid.go.th/2009, http://wmsc.rid.go.th, E-mail : wmsc.1460@gmail.com
<strong>Report</strong> <strong>for</strong> <strong>water</strong> <strong>situation</strong> on Monday 12 th August 2013
1. Weather atmosphere
The monsoon trough over the North and the Northeast moved into low pressure cell around
the middle South China Sea. In addition, moderate southwest monsoon remains over the Andaman
Sea, the South and the Gulf so that continuous rain is likely over Thailand and isolated heavy rain is
likely in the North and the Northeast. People should beware of heavy rain. At 4.00 a.m. today,
typhoon “UTOR” around the Pacific Ocean made landfill over the Philippines. It is expected move
into the middle People who will travel to the Philippines should follow the weather <strong>for</strong>ecast be<strong>for</strong>e
departure.
2. Highest rainfall in each region From 07.00 on 11 th August 2013 to 07.00 on 12 th August 2013 as follows:
North at Mueang Tak 52.3 mm.
Northeast at Pak Chong Nakhon Ratchasima 49.8 mm.
Central at Khlong Toei Bangkok 38.7 mm.
East at Mueang Rayong 15.9 mm.
South (east coast) at Hua Hin Prachuap Khiri Khan 55.8 mm.
South (west coast) at Mueang Ranong 48.7 mm.
3. 3-day Raining Prediction
It is predicted that during 13 – 16 August 2013, the whole country may have rain about 10–30 mm.
<strong>for</strong>mation is from The National Centers <strong>for</strong> Environmental Prediction, starting prediction from 11 th
August 2013.
4. Water condition in reservoirs
Water condition in large and medium scale reservoirs: Water volume in reservoir is 39,842
MCM which is 53% (available <strong>water</strong> volume is 16,043 MCM which is 22%). Water volume in reservoir,
comparing to year 2012 (41,773 MCM which is 56%), is 1,931 MCM less than year 2012. Water discharge
into reservoir is 400.35 MCM. Water releasing is 124.60 MCM, and more <strong>water</strong> intake capacity is 34,682
MCM.
Water condition in large scale reservoirs: Water volume in reservoir is 37,504 MCM which is
53% (available <strong>water</strong> volume is 14,005 which is 20%) Water volume in reservoir, comparing to year
2012 (39,775 MCM which is 57%) is 2,271 MCM less than year 2012. Water discharge into reservoir is
349.15 MCM. Water releasing is 82.78 MCM, and more <strong>water</strong> intake capacity is 32,647 MCM.
Bhumibol, Sirikit, Khwae Noi Bamrungdan, and Pa Sak Jolasid Dam, all 4 dams have total
<strong>water</strong> volume of 8,684 MCM which is 35% (available <strong>water</strong> volume is 1,988 MCM of which is 8%). Water
discharge into reservoir is 137.74 MCM. Water releasing is 15.49 MCM, and more <strong>water</strong> intake capacity is
16,012 MCM.
8 Large-scale reservoirs that have storage <strong>water</strong> criteria less than or equal to 30% of
retentions capacity; namely, Mae Ngat Somboon Chon, Mae Kuang Udom Tara, Chulabhorn, Lam Pao,
Lam Takhong, Lam Phra Phloeng, Pa Sak Jolasid, and Pran Buri Reservoirs.
1 Water Watch and Monitoring System <strong>for</strong> Warning Center, RID

5. Runoff Condition (at 6.00 am.)
Chao Phraya River Station C.2 discharge volume of 438 m 3 /sec (yesterday: 372 m3./sec) <strong>water</strong>
level: +19.39 m.M.S.L. which is 6.81 m. lower than the bank.
Chao Phraya Diversion Dam Station C.13 discharge volume of 89 m 3 /sec (yesterday: 50 m 3 /sec),
<strong>water</strong> level at upstream +15.68 m.M.S.L. (yesterday: +15.46 m.M.S.L.), <strong>water</strong> level at downstream +5.68
m.M.S.L.(yesterday: +5.50 m.M.S.L.)
Water intake into distribution system in eastern ward field discharge volume of 192 m 3 /sec
(yesterday: 175 m 3 /sec), at Chai Nat - Pa Sak Canal (Manorom Regulator): 135 m 3 /sec, at Chai Nat-
Ayutthaya Canal (Maharat Regulator): 49 m 3 /sec. At other small canals: 8 m 3 /sec. At Raphiphat Canal
(Phra Narai Regulator): 43 m 3 /sec.
Water intake into distribution system in western ward field Discharge of 185 m 3 /sec
(yesterday: 175 m 3 /sec), at Makham Thao Uthong Canal (Makham Thao-Uthong Regulator): 25 m 3 /sec,
at Suphan River (Phonlathep Regulator): 46 m 3 /sec, at Noi River (Borommathat Regulator): 74 m 3 /sec,
at other small canals <strong>water</strong>: 40 m 3 /sec
Bang Sai District Station C.29 average discharge: 83 m 3 /sec (yesterday: 84m 3 ./sec)
Rama IV Barrage Discharge of 7 m 3 /sec (yesterday: 7 m 3 /sec)
6. Water Quality
Chao Phraya River (Canal mouth of Samlae, Pathum Thani) Both DO and salinity are normal standard.
Chao Phraya River (Pier at Nonthaburi) DO is lower than standard criteria and salinity is normal standard.
Chao Phraya River (Pier at RID Samsen Bangkok) DO is lower than standard criteria and salinity is normal
standard.
Mae Klong River (Canal mouth of Damnoen Saduak, Ratchaburi) Both DO and salinity are normal standard
7. Readiness Preparation and Help Offer
1,877 Mobile pumps are prepared by RID in order to help people in and off-season rice,
field crop and consumption. Now, 482 pumps are installed.
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2 Water Watch and Monitoring System <strong>for</strong> Warning Center, RID