Title of the Case Study

Thailand – Warnings Issued as Floods Hit Northern Provinces

Northern Provinces, Thailand


Death 3, 173.3 mm in 24 hours



The Department of Disaster Prevention and Mitigation (DDPM) in Thailand has warned of heavy rain and flooding in 30 provinces around the country.

Flooding has been reported in Mae Hong Son and Nan provinces. DDPM Director-General Chatchai Promlert reported that recent downpours have also caused flooding in Chiang Rai and Phayao.

However, he warned that from 16 to 19 August, more heavy rains are predicted to affect 30 provinces, consisting of 11 in the North, 8 in the Northeast, 2 in the Central Plains, 4 in the East and 5 in the South.

Phrae province is considered to be at considerable risk of flooding following heavy rains in upper areas of the Yom river basin in Phayao, according to the Royal Irrigation Department. The high levels of water from the Yom river basin are expected further down river and could affect parts of Sukhothai province by around 21 August, according to the department.

The Royal Irrigation Department also warned of rapidly rising levels of the Mekong River in Nong Khai. As of 17 August, the level stood at 10.19 metres, according to the Water Resources Department. Critical level is considered to be around 12 metres.

DDPM say that officials will be on standby in these areas to monitor the situation in all affected provinces. Residents are encouraged to take precautions against possible dangers from accumulated rainfall and to strictly heed disaster warnings.

Excessive development - Most of the region in central area are flat land that reservoir and water way are very important to prevent flooding. Deforestation, change in water way, and reclamation of res
Inappropriate water resource management. Poor management of two large dams in the upper stream(Bhumibol, Sirikit Dams) was pointed as the main cause of flooding damage
■ Decrease in Thailand's economic growth to 1.5%
  • Central bank of Thailand announced that economic growth of the year has decreased from 4.1% to 2.6% due to serious damage from flooding.
  • According to EIU Statistics, rate of inflation in October rose to 4.2%, which would be 0.2% higher than September due to rise in the price of food from flooding.
  • Whole inflation rate in 2011, was predicted to rise up to 4.3%, which is 1% higher than pervious year 3.3%.
■ 400billion THB(13.3billion dollar) financial loss was pridicted in 2012
  • Thai government put 420billonTHB(14billion dollar) as a budget for recovery from flooding on next year's budget , and Thai government's financial state will have 400billion loss in 2012.
  • It is predicted that various projects will be developed for recovery, and prevention of flooding.
Decision making and sharing


KOICA, Korea International Cooperation Agency

Daewangpangyo-ro 825, Seongnam-si, Sujeong-gu, Gyeonggi-do, Korea


82 31 7400 114

Youngmok, Kim

82 31 7400 114


Risk AssessmentDamage AnalysisFlood PredictionInundation Predictionetc.


Inundation prediction
Rainfall prediction


Gathering and sharing informationPlanningDecision making and sharing


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