The leading edge of southwest monsoon is surging ahead to reach Mumbai during the next 24 hours and expected to lash it with moderate to heavy rain. The first phase of monsoon rain with gradual increase in amount of rainfall will last till 15th of June. At least 15 to 20mm of rain at an average is expected from Saturday onwards.
Meanwhile, monsoon rain would further invade some more parts of central Peninsular region over Marathwada, Telangana, south Madhya Pradesh and Chhattisgarh during the next two days. But during the same period, rain will reduce in interiors of south Peninsula.
Monsoon rain will increase in intensity along the west coast, and many places over coastal Kerala, Karnataka, Goa and Maharashtra will receive moderate to heavy rain. South Gujarat, southeast Rajasthan and southwest Madhya Pradesh will also get rain at one or two places as moist southwesterly winds from the Arabian Sea will start affecting them during the next two to three days.
The eastern part of monsoon line will make progress to cover some parts of sub-Himalayan West Bengal, Sikkim and northeast states. Heavy rain is expected at one or two places in these parts during the next 24 hours. The monsoon line is currently passing through Harnai, Parbhani, Ramagundam, Vishakhapatnam, Aizwal, Guwahati, Cooch Bihar and Gangtok.
Rain will be witnessed at one or two places over Uttar Pradesh, Bihar, Jharkhand, Orissa and Gangetic West Bengal due to the trough of low pressure that runs from west Rajasthan to the Bay of Bengal across Madhya Pradesh, Chhattisgarh and Orissa.