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| | General Situation | at at 22:00 | | | | | | | | The low pressure cell covers Myanmar while the moderate southwest monsoon prevails over the Andaman Sea, Thailand and the Gulf of Thailand. Scattered thundershower remains in the North of Thailand and decrease rainfall in the others during 1-2 days.
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| | Bangkok Metropolis and Vicinity Forecast  | From 23:00 - 23:00 | | | | | | | | Widely scattered thundershowers.
Minimum temperature 27-28 °C. Maximum temperature 34-36 °C.
Southwesterly winds 15-30 km/hr.
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| | | more | Issued Date May 20, 2012 | |
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| | 7-day Forecast | May 20, 2012 - May 26, 2012 | | | | | | | During 21-22 May, the low pressure cell over the Gulf of Martabun is weakening and the moderate southwest monsoon still prevails over the Andaman Sea, Thailand and the Gulf. Decreasing rains are expected over Thailand.
After that during 23-26 May, the rather strong southwest monsoon prevails over the Andaman Sea, Thailand and the Gulf with easterly will cover the Gulf. Abundant rains and isolated heavy rain are likely in the western portion of Thailand and the East. Wind wave in the Andaman Sea with about 2 meters high and above 2 meters in thundershower areas.
Cautions
People in the risky area of the North, the Central and the upper South should beware of flooding conditions especially during 20 and 23-26 May.
All ships in the Andaman Sea should proceed with caution throughout of the period.
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| | | | Issued date May 20, 2012 | |
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| | 7-day Summary | May 11, 2012 - May 17, 2012 | | | | | | | | The southwesterly monsoon which prevailing over the Andaman Sea, Thailand and the Gulf of Thailand was strengthen during the second half of the period. In addition, the low pressure cell covered the central and eastern parts of Thailand during the mentioned period. These conditions caused increasing in rainfall over Thailand during the second half of the period. | | | | |
| | | Weekly Summary | Issued date May 18, 2012 | |
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