An yellow alert has been sounded in six districts in the State on Tuesday warning of isolated heavy rain, said a weather bulletin issued by the India Meteorological Department on Monday. The alert has been issued for Ernakulam, Idukki, Palakkad, Malappuram, Kozhikode and Wayanad districts.
The State is also likely to receive widespread light to moderate rainfall with thunderstorm and lightning for the next four days under the influence of monsoonal westerly winds from the Arabian Sea over the south peninsular India in lower and middle tropospheric levels, a cyclonic circulation over the southeast Arabian Sea off the north Kerala-Karnataka coast and a trough from the cyclonic circulation to the southwest Bay of Bengal at lower tropospheric levels.
Conditions are also favourable for further advance of the southwest monsoon to some parts of the central Arabian Sea, remaining parts of Kerala, some more parts of Tamil Nadu, some parts of Karnataka, and some more parts of south and the central Bay of Bengal, some parts of the northeast Bay of Bengal land northeastern states during next three to four days, the bulletin said.
Squally weather with wind speed of 40-50 kmph gusting to 60 kmph is very likely over the southwest Arabian Sea during next four days, over the southeast Arabian Sea, Lakshadweep area, along and off the Kerala coast, the Comorin area and the Gulf of Mannar on Tuesday. Fishermen are advised not to venture into these areas, said the bulletin.