Heavy showers battered Mumbai for the second consecutive day Monday, with several pockets of the city recording over 150 mm of rainfall in an overnight spell, triggering waterlogging and traffic snarls.Indicating more rain on cards in the region, the India Meteorological Department (IMD) has issued yellow alerts for Mumbai, Thane, Palghar, and Raigad districts, which will remain in place until September 18 (Thursday) morning, after which no further alerts have been issued.The incessant showers through the night nudged the IMD into issuing a red nowcast warning for Mumbai for the next three hours at 8.30 am, while Mumbai and neighbouring Thane and Palghr districts were placed under an orange alert on Monday.Mumbai woke up to heavy rain, with data from IMD showing that in the 24 hours till 8.30 am Monday, the Colaba coastal observatory registered 134.4 mm of rainfall while the Santacruz station received 73.2 mm.However, records from the Brihanmumbai Municipal Corporation (BMC) showed that the heaviest rain was clocked in over a nine-hour window with several pockets receiving more than 150 mm rain between midnight and 8 am on September 15.Data showed that the heaviest rain recorded over the nine-hour period was in Bandra’s Pali Chimbai area which received 173 mm rain, followed by 170 mm in Worli, 160 mm in Dadar, 159 mm rain in Colaba and 130 mm rain in Fort.In the eastern suburbs, the heaviest downpour was observed over Chembur area at 123 mm rain, followed by 114 mm rain in Turbhe, 110 mm rain in Maharashtra Nagar.Story continues below this adThe incessant showers overnight led to waterlogging across several pockets in the city Monday morning, affecting vehicular movement during peak travel hours for office goers.According to the Mumbai traffic police, the Andheri subway was shut for vehicular movement owing to inundation, with the traffic diverted through Gokhale Bridge.“Traffic is moving at a slow pace as half a foot of water is accumulated at Khar Subway (Vakola) and one foot of water is accumulated at Panbai School’s northbound slip road,” the Mumbai traffic police said in another update.Owing to inundation of streets, citizens were seen wading through ankle-deep waters in several areas including Kurla, Mankhurd, Ghatkopar’s Pant Nagar, Khar Subway among other pockets.Story continues below this adIn what impeded rail services with train services along the Central Railways delayed for nearly 20 minutes, water logging was also reported on the railway tracks in areas like Matunga.However, rain activity subdued considerably by Monday afternoon. Despite the forecast upgraded to an Orange alert, the IMD’s Santacruz station received 30 mm rain between 8.30 am and 5.30 pm on Monday while Colaba station received 25 mm.In the aftermath of the heavy rain dump, at least 10 incidents of house, tree collapses as well as short circuits were reported across the city.However, officials maintained that no injuries were reported in the incident.Story continues below this adAmid heavy showers in the region, the IMD sounded a red alert in Raigad district for Tuesday.In Raigad district, Matheran recorded the highest rainfall at 271.4 mm, followed by Panvel (165 mm), Poladpur (158 mm), Mahad (147 mm), and Karjat (146 mm). Other talukas recorded notable rainfall, including Mangaon (92 mm), Alibag (83 mm), and Mhasala (73 mm), while Sudhagad (21 mm), Shrivardhan (25 mm), and Khalapur (25 mm) received the lowest. The average rainfall across Raigad taluka was 92.83 mm.In Navi Mumbai, Belapur recorded 159.6 mm of rainfall, followed by Nerul (138.6 mm), Vashi (97.4 mm), Koparkhairne (80.2 mm), Airoli (74.6 mm), and Digha (54.4 mm).The average rainfall across Navi Mumbai was 100.8 mm. Since June 1, total rainfall in the city stands at 2,917.89 mm.Story continues below this adMorbe Dam received 105.6 mm rainfall Monday, taking the total since June 1 to 3,680.20 mm. The water level stood at 88.26 metres, which is 101.3 per cent of its capacity.The heavy monsoon spells have swept the region over the weekend, even as September is the driest of the four monsoon months in Mumbai, when the city’s suburban belt receives an average monthly rainfall of 360 mm.Meteorologists pointed the heavy showers to a low pressure area over Chhattisgarh which crossed over to the western pocket and ushered in moisture and heavy showers.