Sri Vijaya Puram, May 14: Heavy rainfall (07-11 cm) is likely to occur at one or two places over A&N Islands and thunderstorm with gusty wind (30-40 kmph) and lightning is also likely to occur at one or two places over Andaman Islands on May 15. Squally weather with surface wind speeds reaching 35 – 45 kmph is very likely over Andaman Sea & A&N coast. Fishermen have been advised not to venture into the sea till May 16.