Mumbai, June 27 -- After a humid week of light drizzles and occasional showers, the city can gear up for a weekend of heavy rainfall as per the India Meteorological Department's (IMD) forecast on Thursday. The weather station has signalled a yellow alert starting Friday warning citizens to be aware that the weather could cause minor disruptions. The alert continues till June 30, barring Saturday when moderate rain is expected in isolated areas. Similar alerts have been sounded for Palghar and Thane, while Raigad is under an orange alert....