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    India Monsoon Onset Nears

    May 30, 2013; 1:02 PM ET

    The Summer Monsoon looks set to gain a foothold on the Indian Subcontinent within as little as a few days. Monsoon onset would open the summer rainy season, beginning in southern and eastern parts of the Subcontinent. The Monsoon normally advances quickly into northern and western India during the first half of June before finally reaching most of Pakistan by mid-July.

    The India Meteorological Department (IMD) tracks the Monsoon advance, beginning in May, then follows its withdrawal from the Subcontinent late in the summer. The IMD have forecast an onset date of June 3 in the southwestern India state of Kerala. Normal onset date here is about June 1.

    Infrared satellite image taken 1700 UTC Thursday, May 30, 2013, showing "pre-Monsoon" rain clouds over southern and eastern India as well as Bangladesh. At this time, the leading edge of the northward-advancing Monsoon was stretched southwest to northeast over the Bay of Bengal. (credit: India Meteorological Dept.)

    As of Thursday, May 30, the leading edge of the Indian Monsoon stretched over the Bay of Bengal, from east of Sri Lanka northeast to about Akyab, Mynamar, according to the IMD. However, "pre-monsoon" rain was already falling in parts of southern and northeastern India as well as Bangladesh. A two-day soaker left nearly 5 inches of rain at Jamshedpur, in the state of Jharkhand.

    Numerical forecast models available to AccuWeather.com on Thursday showed continued northward spread of the environment favorable for rain and thunderstorms. However, it was not clear which day would be the one most likely to be declared the opening day of the Summer Monsoon in India by the IMD.

    The views expressed are those of the author and not necessarily those of AccuWeather, Inc. or AccuWeather.com


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