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This page was last updated on  30 October  2016 7:00
 

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General  Weather Situation over  the Lower Mekong Basin (LMB)

30 October  2016

 

General Condition:

 

On October 30 2016 at 01.00 am Local Cambodia Time (LCT), the latitude from 00N to 280N and the longitude from 900E to 1250E, the ridge of high pressure from china has extend and covered over the North, the Northeast, the East and the Central of Thailand, Lao PDR, the North of Cambodia, the North and the Central of Viet Nam (Figure 1).

                                  

During October 30- November 01, the ridge of high pressure from china will continue covered over the North, the Northeast, the East and the Central of Thailand,  Lao PDR, the North of Cambodia, the North and the  Central of Viet Nam. More rain and heavy rain will be likely in the East the Southeast, the lower Central, the South and the Coastal areas of Cambodia, the South of Thailand the South and the Central of Viet Nam during 30 October-01 November.

 

The wind waves are expected about 1.0-2.5 meters high in the Andaman Sea and about 0.5.-2.0 meters high in the Gulf of Thailand during 30 October-01 November 2016.

Figure 1: Weather Chart issued at 01:00 UTC on 29 October, 2016

Source: Thai Meteorological Department 

 

Figure 2 of October 30 2016 at 06:30 am Local Cambodia Time (LCT) shows IR image which is observed moderate cloud with the form of Cirrostratus (Cs), Altostratus (As), Altocumulus (Ac) and Cumulonimbus over the South China Sea and the Lowe gulf of Thailand.

Figure 2: Infrared Image, MTSAT IR, at 23.30 UTC on 29 October, 2016

Source: Japan Meteorological Agency

 

The trough lies across Cambodia and the South Viet Nam, The Eest-Southeasterly winds prevail over Thailand and Indochina Peninsular at 01.00 am (LTC) on 30 October, 2016(Figure3)

Figure 3: Upper Air Weather Chart 850 hPa (1500 m), issued at 18:00 UTC on 29 October 2016

Source: Thai Meteorological Department   

 

The below show interactive weather forecast maps are produced from computer models on 30 October 2016.

 

During October 30- November 01, 2016, More rain will be likely in Cambodia, the South and the Southeast of Myanmar, the South  of Thailand,  the South and the Central of Viet Nam.

Figure 4: The prognosticative maps issued at 18:00 UTC on October 30, 2016 for 72hrs forecast

Source: Hong Kong Observatory

 

Conclusion:   Normal Weather Situation

 

The ridge of high pressure from china has extend and covered over the North, the Northeast, the East and the Central of Thailand, Lao PDR, the North of Cambodia, the North and the Central of Viet Nam. The trough lies across Cambodia and Viet Nam, the South of Thailand and Viet Nam. The East- Southeasterly winds prevail over Thailand and Indochina Peninsular at the height of 1.5km (850 hPa).

 

On October 30- November 01, 2016, the ridge of high pressure from china will continue covered over the North, the Northeast, the East and the Central of Thailand,  Lao PDR, the North of Cambodia, the North and the  Central of Viet Nam. 

 

As the result of these phenomena, it will bring more rain and heavy rain will be likely in the East the Southeast, the lower Central, the South and the Coastal areas of Cambodia, the South of Thailand, the South and the Central of Viet Nam during 30 October-01 November  2016.

 

 

 

The wind waves are expected about 1.0-2.5 meters high in the Andaman Sea and about 0.5.-2.0 meters high in the Gulf of Thailand during 30 October-01 November 2016.

 

 

     

   

    

Note: This bulletin is published by Department of Meteorology in collaboration with the MRC’s Regional Flood Management and Mitigation Center, Phnom Penh City, Cambodia.