Sri Vijaya Puram, Sept. 22: Thunderstorm with gusty wind (40-50 kmph) and lightning is very likely to occur at one or two places over A&N Islands from Sept. 23 to 28. Squally weather with wind speed reaching 40 – 50 kmph occasionally gusting 60 kmph is likely to prevail along and off A&N coasts. Fishermen have been advised not to venture into the sea along and off A&N Coasts till Sept. 23.