Southwest monsoon reaches Andaman and Nicobar islands, see details here
The IMD confirmed on Tuesday that the Southwest monsoon reached Andaman and Nicobar islands and rain was experienced
Andaman: The IMD (India Meteorological Department) confirmed on Tuesday that the much awaited Southwest monsoon reached Andaman and Nicobar islands.
Widespread moderate rainfall with heavy rainfall at a few places occurred over the Nicobar Islands during past 24 hours. Thus, the widespread rainfall with isolated/scattered heavy rainfall continued over the Nicobar Islands during past 2 days.
The strength and depth of westerly wind increased continuously during past 2 days over parts of south Bay of Bengal, Nicobar Islands and Andaman Sea. The westerly wind speed at 1.5 km above mean sea level is above 20 knots and the depth of westerly wind over some parts of south Bay, Nicobar Islands and some parts of Andaman Sea is up to 4.5 km above mean sea level.
The Outgoing Longwave Radiation over the area continued to decrease becoming less than 200 W/m2 during past 2 days (190 &170 W/m2 on 12th & 13th May, 2025).
Considering all the above satisfied criteria, southwest Monsoon has advanced into some parts of south Bay of Bengal, south Andaman Sea, Nicobar Islands and some parts of north Andaman Sea today, the 13th May, 2025. The Northern Limit of Monsoon passes through 5°N/75°E, 5°N/80°E, 6°N/86°E, 8.5°N/90°E, Hut Bay, 13°N/95°E. and 16°N/98°E.
Conditions are favorable for further advance of southwest Monsoon over some parts of south Arabian Sea, Maldives & Comorin area; some more parts of South Bay of Bengal, entire Andaman & Nicobar Islands, remaining parts of Andaman Sea; and some parts of central Bay of Bengal during next 3-4 days.
About Advance of Southwest 2025 on 13th May 2025:
1) Widespread moderate rainfall with heavy rainfall at a few places occurred over the Nicobar Islands during past 24 hours. Thus, the widespread rainfall with isolated/scattered heavy rainfall continued over the Nicobar Islands… pic.twitter.com/JyabwSPGIc
— India Meteorological Department (@Indiametdept) May 13, 2025
