A weak trough of low pressure that has formed off Sri Lanka in the South Central Bay.
This is unlikely to develop into any major disturbance in the days to come. Under its influence it is going to provide some fairly heavy spells of rains in Sri Lanka. A few places in South Tamil Nadu would also get isolated spells of heavy rains. A few places in South Kerala also would get decent spells of rains.
Chennai and North Tamil Nadu would get isolated short spells of light rains around early mornings.