The APEC Climate Center Commenced Its Boreal Summer Intraseasonal Oscillation Forecasts for the Year 2019 from 1 May, 2019.

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2019.05.14
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The APEC Climate Center (APCC) commenced its Boreal Summer Intraseasonal Oscillation (BSISO) forecasts for the year 2019 at its website from 1 May, 2019.
BSISO forecasts play an important role in predicting the beginning and the characteristics of the Asian summer monsoon. The Oscillation is a large-scale convection, with a period of 15 to 60 days. It originates over the Indian Ocean, gradually traveling eastward as well as north with a diverse structure. It affects the beginning of the Asian summer monsoon, circulation of atmosphere, and weather patterns.

Also, BSISO forecasts provide information that helps predicts dry and wet seasons in Asia, by tracing large scale zones of precipitation. They play an important role in predicting hydrometeorological extreme weather phenomena. Users can therefore prepare for disasters like heavy rainfall, drought, and heat wave.

APCC first provided BSISO forecast services at its website, in cooperation with the World Meteorological Organization (WMO), the Working Group on Numerical Experimentation (WGNE) and the Madden Julian Oscillation (MJO) Task Force on July 1, 2013.