Sri Vijaya Puram, Sept. 3: Thunderstorm with gusty wind (30-40 kmph) is very likely to occur at one or two places over A&N Islands on Sept. 4 & 5. Heavy rain (07-11 cm) is also very likely to occur at one or two places over Nicobar Island on Sept. 6 & 7. Squally weather with surface wind speed reaching 35-45 kmph gusting to 55 kmph is very likely to prevail over Andaman Sea & A&N Islands. Sea condition is also likely to be rough.