While the India Meteorological Department (IMD) has issued an orange alert for Monday, indicating heavy to very heavy rainfall at isolated places across the city, heavy showers lashed parts of Mumbai, especially the southern parts, on Saturday night and Sunday. The IMD issued a red alert for Mumbai and other districts of coastal Maharashtra — Thane, Raigad, Palghar, Ratnagiri, and Sindhudurg — on Sunday afternoon, indicating extremely heavy rainfall at isolated places along with thunderstorms, lightning, and gusty winds over 40-59 kmph.

Within 33 hours between 8 am on Saturday and 5.30 pm on Sunday, IMD's Colaba observatory recorded 214 mm of rainfall. Of this, 120.8 mm was recorded between 8 am on Saturday and 8 am on Sunday, while 93.2 mm was recorded between 8.30 am and 5.30 pm on Sunday.