Hyderabad, Thunderstorm with lightning is likely to occur at isolated places in Rayalaseema during the next 48 hours and on September 12, Meteorological Centre said on Tuesday.In a bulletin here, it also said that thunderstorm with lightning is likely to occur at isolated places in South Coastal Andhra Pradesh, North Coastal Andhra Pradesh & Yanam on September 11 and 12.Further, it also said that heavy rain is likely to occur in Rayalaseema during the next 24 hours, on September 12 and in South Coastal Andhra Pradesh on September 12.Thunderstorm with lightning is likely to occur at isolated places in Telangana during the next five days.Light to moderate rain or thundershowers is likely to occur at many places, or at few places or at one or two places in Telangana, Coastal Andhra Pradesh & Yanam and Rayalaseema during the next five days, the bulletin said.Southwest Monsoon has been active in Rayalaseema and weak in Telangana during the last 24 hours.Heavy rain occurred at isolated places in Chittoor district of Rayalaseema during the same period.Rain occurred at many places in Rayalaseema, at isolated places in Telangana, Coastal Andhra Pradesh & Yanam during the last 24 hours, the bulletin added.