Rains are likely to reduce significantly over Tamil Nadu including Chennai as the cyclonic circulation over Southwest Bay of Bengal has become fragile.
A trough is seen extending from southeast to east central Arabian Sea. With this, light to moderate rains are possible over Kerala and South Coastal Karnataka. While scattered light rain may occur over South Interior Karnataka including Bengaluru, Interior Tamil Nadu and South Coastal Andhra Pradesh.
A low pressure can be seen over Southeast Bay of Bengal. This would give heavy to very heavy rains over Andaman and Nicobar Islands.
Courtesy: skymetweather.com