Mumbai, July 16 : Heavy overnight rains lashed Mumbai and the Mumbai Metropolitan Region (MMR) hitting road and rail traffic, though flight operation at the Chhatrapati Shivaji Maharaj International Airport was normal. Water-logging was reported from chronic spots of Dadar, Parel, Wadala, Sion, besides low-lying areas in Malad, Santacruz, Dahisar. While the suburban services on the Central Railway were hit badly with delays of over 30-minutes due to speed restrictions, Western Railway traffic has not been affected. K.S. Hosalikar, Head of Climate Research and Services, Pune shared the latest satellite images at 8.30 a.m. indicating intense clouds over Mumbai suburbs and Thane leading to some very intense spells in the last 3-4 hours. He said the entire coastal Konkan is covered with clouds and North Konkan-Mumbai needs to watch out. The BrihanMumbai Municipal Corporation is on an alert mode and the water levels of Mothi River are being monitored. The entire North Konkan area comprising the twin districts of Mumbai City and Mumbai Suburban, neighbouring districts of Palghar, Thane and Raigad which comprise the MMR is getting heavy rainfall. The BMC said in the past 24 hours till 8 a.m. (Friday), the city received 64.45 mm, 127.16 mm in Western Suburbs and 120.67 mm in Eastern Suburbs, and it continues to pour since daybreak on Friday. The BMC has forecast more rains for the day including isolated spells of heavy showers. - /IANS