Sat, Apr 28, 2012 - Page 2 News List

Plum rain season likely to begin next week: CWB

By Shelley Shan  /  Staff reporter

The first frontal system in the plum rain season is forecast to arrive on Thursday or Friday, the Central Weather Bureau (CWB) said yesterday.

The plum rain season generally lasts from May to June and it is so named because it coincides with the time when the plums in south China ripen.

The rainfall in these two months accounts for one-third of the nation’s annual rainfall, the bureau said.

Weather Forecast Center director Cheng Ming-dean (鄭明典) said the plum rain season has two defining characteristics; first, most of the rain falls on mountainous areas in the central and southern parts of the nation and second the chance of precipitation is particularly high from May 19 to June 16.

In addition, stationary fronts over the same period can lead to heavy rain or even torrential downpours across the nation, Cheng said..

A computer simulation used by the bureau showed that there would be more rain in the sea to the south and less rain in coastal area of eastern China this year, Cheng said.

“Taiwan is located between these two regions,” Cheng said. “As such, the nation’s central and southern regions are likely to have more rain this year if the rain belt in the south moves slightly north.”

Overall, the bureau forecast that central and southern Taiwan would see more rain this year, whereas the rainfall in other regions was expected to be within the normal range.

“The nation will not experience water shortages in central and southern areas if there is a normal amount of rainfall during the plum rain season,” Cheng said.

Cheng said temperatures could soar to 30oC during the plum rain season because the nation will also be influenced by southerly winds, though the mercury would fall slightly whenever frontal systems approach.

While the rain is expected to ease today, chances of showers remain high nationwide.

Daytime temperatures are also forecast to rise and could hit 30oC nationwide tomorrow.

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