Light thunderstorm with lightning and surface wind 30-40 kmph is very likely to occur at isolated places over Diu, Amreli, Bhavnagar, Botad, Devbhumi Dwarka, Gir Somnath, Jamnagar, Junagadh, Kachchh, Morbi, Porbandar, Rajkot, Surendranagar in next 24 hours.