MUMBAI: With two cyclones in the Arabian Sea at the same time, Mumbai is once again expected to experience cloudy skies and isolated rain over the weekend. This, weathermen said, could bring some relief for the city which is reeling under the scorching heat. The India Meteorological Department (IMD) on Thursday forecast rain and thundershowers for the city as well as adjoining areas, including Thane and Palghar, for Friday and Saturday.On Thursday itself, some impact could be felt as the maximum temperature recorded by the IMD Santacruz observatory dropped to 34.9 degrees Celsius from 36.4 degrees on Wednesday. This was almost 0.4 degrees below normal. Humidity levels also were low as IMD Colaba and Santacruz observatories recorded 59% and 55% respectively.Weathermen said this was owing to the formation of severe cyclonic storm Maha over east-central Arabian Sea and adjoining Lakshadweep area and weakening of cyclonic storm Kyarr over west-central Arabian Sea.This year has been historic for the fact that it is the first time that two cyclones have formed in the Arabian Sea at the same time, while there have been four cyclones from the beginning of monsoon this year. First it was cyclone Vayu which formed during the onset of monsoons, cyclone Hikka during the withdrawal phase and then Kyarr last week and now cyclone Maha .Mahesh Palawat, vice-president, meteorology and climate change, Skymet Weather Services, the high temperatures in Mumbai was due to winds from the easterly direction, but now with cyclone Maha expected to travel in the north-west direction, strong winds from the Arabian Sea which will be south-westerly will commence over many parts of Maharashtra. "Therefore, there will be cloudy conditions and isolated patchy rains, but no heavy downpour is expected. Maximum temperatures will come down to 32-33 degrees. Winds will be strong and sea conditions will be rough, therefore it will be advisable for fisherman to not venture out," he advised.