The India Meteorological Department (IMD) on Sunday issued a yellow alert for Wednesday and Thursday for Mumbai. The weather bureau said that Mumbai and adjoining areas will likely witness a thunderstorm accompanied by gusty winds with heavy rain across isolated areas on Wednesday and Thursday.
According to IMD, a low-pressure belt in the Bay of Bengal had turned into a depression and may further strengthen into a deep depression leading to heavy rains and thunderstorms across Maharashtra over the next five days.
The Regional Meteorological Center Mumbai tweeted saying: "With the gradual west-northwestward movement of the depression, interior Maharashtra including Marathwada, Vidarbha, and parts of Madhya Maharashtra rainfall activity is expected to increase further during next 3-4 days. Gradual increase over Konkan frm 14th."
Meanwhile, IMD Mumbai centre deputy director general K S Hosalikar said that moderate to an intense spell of rain likely to occur at isolated places in the districts of Pune on Monday. "Thunderstorm accompanied with lightning and moderate to intense spell of rain likely to occur at isolated places in the districts of Pune during next 3 hours," Hosalikar tweeted.
The weather forecast put out by IMD Mumbai indicates the maximum temperature in the city on Monday will be 33°C, while the minimum temperature will be 26°C. While the rainfall might have brought in some respite from the heat, the humidity levels will be at 89% in Santacruz and 94% in Colaba.
IMD Mumbai also said that the city can expect a cloudy sky with the possibility of light rain on Monday. "Generally cloudy sky with possibility of light rain or thundershowers in city and suburbs," IMD Mumbai said on its website.
The weather bureau said the southwest monsoon is unlikely to withdraw from the rest of the country until next week, thus further extending the rainfall season.
The ongoing depression over the Bay of Bengal --- a cyclonic circulation --- is likely to intensify into a deep depression during the next 24 hours and cross north Andhra Pradesh coast between Narsapur and Vishakhapatnam during the night of October 12.
Besides Andhra Pradesh and Telangana, the system will also bring rains over Telangana, north interior Karnataka, central Maharashtra and Vidarbha, and south Odisha on October 13, it said.
The official rainfall season in the country is from June 1 to September 30. This season, the country received above normal rainfall for the second consecutive year.