AREA OF HEAVY RAINFALL Rainfall between 200- 400 cm The Arabian Sea branch of south west monsoon cause rainfall all along the western Ghats and Western coastal regions from June to September. In North East India, the Bay of Bengal branch of monsoonal winds which causes monsoon in the southern hills of Shillong Plateau, Garo, Khasi, Jaintia hills (Meghalaya) and other states. In These regions Orographic features play an important role because the moisture laden monsoon winds strike against physical barriers the like mountains, to cause heavy rainfall. AREA OF MODERATE RAINFALL Rainfall between 100 – 200 cm The average rainfall over North Indian Plain generally remains between 100 to 200 cm. Other areas of moderate rainfall are northeastern parts of Peninsular India, highlands of Central India, and Tamil Nadu.
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