NEW DELHI: The India Meteorological Department (IMD) on Monday issued a red alert warning of extremely heavy rainfall at isolated locations in Raigad as well as the ghat regions of Pune and Satara districts over the next 16 hours. Mumbai has been placed under an orange alert. Mumbai experienced persistent morning showers on Monday, leading to waterlogging in several low-lying areas. The weather also disrupted flight services, with Air India saying that heavy rainfall may impact flight operations to and from Mumbai.Earlier in the day, IndiGo Airlines issued a travel advisory for those travelling to and from Chhatrapati Shivaji Maharaj International Airport (CSMIA) in Mumbai. The airline has also warned of temporary disruptions in its schedule, urging travellers to monitor their flight status and plan their journeys accordingly.Rain submerges MumbaiIncessant rains battered Mumbai on Monday morning, flooding low-lying areas and disrupting road traffic, suburban trains, and metro services, officials said.The India Meteorological Department (IMD) has forecast cloudy skies with the likelihood of heavy rain in the next 24 hours.The island city recorded 95 mm of rainfall, while eastern and western suburbs received 58 mm and 75 mm, respectively. A 4.21-metre high tide is expected at 3.31 pm.Suburban trains on Central and Western lines were delayed, with passengers reporting 20-30 minute holdups.“The services are running normally now,” Mumbai Metro One said after briefly halting due to fallen debris.Konkon region witnesses incessant rainsHeavy rainfall has been pounding the Konkan region and other parts of Maharashtra over the past few days. According to officials, rain-related incidents since June 1 have claimed 18 lives and left 65 people injured. The IMD released its District Forecast and Warning for the coming five days on Monday afternoon, predicting “heavy to very heavy rainfall at a few places with extremely heavy rainfall at isolated places in Raigad district, along with ghat areas of Pune and Satara districts till 8.30 am on Tuesday”. Meanwhile, an orange alert has been announced for Mumbai, Thane, Palghar, Ratnagiri, and Sindhudurg districts in Konkan, along with Amravati, Bhandara, Gondia, and Nagpur districts in Vidarbha, with forecasts of “heavy to very heavy rainfall at a few or isolated places.” The IMD stated that this forecast and warning would remain in effect until 8.30 am on Tuesday. A red alert signifies “take action,” urging authorities to respond immediately, while an orange alert indicates “be prepared to take action,” requiring readiness for potential emergency measures. With continuous rainfall in Konkan and other parts of Maharashtra, flood-like situations have developed in some districts as rivers have started to overflow. Many low-lying areas in villages and towns along riverbanks have gone under water. Additionally, the IMD has maintained an orange alert for some southern districts in Konkan over the next two to three days.