Rainfall and severe flooding over Thailand in 2011

Rainfall and severe flooding over Thailand in 2011

9

Published

9 January 2012
Press Release Number:
N/A

This year, flash flood affected some areas in upper Thailand since mid-May. In June, heavy rainfall occurred in many locations throughout the month caused by the influence of the active southwest monsoon and monsoon trough which lies across the upper Thailand.

The rainfall amount of Thailand since 1 January to 31 October was 1822.4 millimeters, about 28 percent above normal and the October rainfall was 201.8 millimeters, 10 percent above normal. Seasonal rainfall from May to October in 2011 was above normal of 20 – 60% for most Meteorological Station in northern part and of 10 - 40% with below normal in some areas in central part.

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