Report / Technical

Daily Crop Weather Information on 21 November 2020

Abstract

The Well Marked Low Pressure Area over Southwest Arabian Sea & neighbourhood persists. The associated cyclonic circulation extending upto 4.5 km above mean sea level also persists. It is very likely to move westnorthwestwards and concentrate into a Depression during next 24 hours. Since the system is away from the Indian coast it will not cause any adverse weather over Indian region. • Under the influence of the cyclonic circulation over Equatorial Indian Ocean and adjoining Southeast Bay of Bengal, a low pressure area has formed over Equatorial Indian Ocean and adjoining central parts of South Bay of Bengal. Associated cyclonic circulation extends upto mid tropospheric level. It is likely to concentrate into a depression over Southwest Bay of Bengal during next 48 hours and intensify further during subsequent 48 hours. It is very likely to move westnorthwestwards towards Srilanka-south Tamil Nadu coast and reach near Tamil Nadu & Puducherry coast on 25th November, 2020. • Under the influence of above system, rainfall activity over south Peninsula very likely to increase from 23rd November with fairly widespread to widespread rainfall accompanied with thunderstorm & lightning is very likely over Tamil Nadu, Puducherry & Karaikal and Kerala & Mahe during 24th & 25th November, 2020 and scattered to fairly widespread rainfall accompanied with thunderstorm & lightning is very likely over south coastal Andhra Pradesh and Rayalaseema and Isolated to scattered rainfall accompanied with thunderstorm & lightning is very likely over Telangana and South Interior Karnataka during the same period. isolated extremely rainfall likely over Tamil Nadu, Puducherry & Karaikal on 24th & 25th November, 2020. Isolated heavy rainfall activity very likely over Kerala & Mahe during the same period and over South Interior Karnataka, South coastal Andhra Pradesh and Rayalaseema on 25th November, 2020. • Cold wave at isolated places is likely over Saurashtra & Kutch during next 24 hours