The WMO said that La Nina is characterised byunusually cool ocean temperatures in the east Pacific and the weather isexpected to get harsher on a much larger scale in the coming months.
In late 2008, La Nina was blamed for icy conditions thatclaimed dozens of lives across Europe and brought torrential rain toIndonesia , Malaysia and Australia.
In Vietnam,La Nina made the summer of 2008 much cooler than previous summers andHanoi and neighbouring areas also record the heaviest downpours in 40years in late October with an approximate rainfall of 1m./.