Sri Vijaya Puram, July 22: Thunderstorm with gusty wind (40-50 kmph) and lightning is very likely to occur at one or two places over A&N Islands on July 23, 24 & 25. Due to squally weather with surface wind speed reaching 40-50 kmph gusting to 60 kmph is very likely over Andaman Sea. Sea condition is likely to be rough. Fishermen have been advised not to venture into the sea along and off Andaman Sea till July 25 and over North Andaman Sea till July 26.