The Pamban Port Office has warned the fishermen as sea condition is likely to be rough to very rough in Southwest Bay of Bengal along and off Tamil Nadu coast.
On December 22, rains will once again become light to moderate and recede around December 23. Thereafter, weather will once again start to become dry. Rains may be slightly more on december 20 and 21 with rainfall being moderate and isolated pockets may see heavy showers as well.
While, the circulation persist over Sri Lanka, Gulf of Mannar and extreme South Peninsula on 18th and 19th Dec, coincidentally an easterly wave will move across, overlapping and enhancing the weather activity. Prolonged wet spell for all the 5 sub divisions of northeast monsoon is likely between 18th and 23rd Dec.
Moderate to light rain and thundershowers will stay across all the 5 subdivisions of northeast monsoon between 19th and 23rd Dec. Northeasterlies stream appear to be flattening thereafter and the weather conditions are expected to improve around Christmas.
The IMD has predicted heavy rainfalls in Tamil Nadu till December 15 owing to a cyclonic circulation and low-pressure area likely to form in the Bay of Bengal around December 13.