In Kerala, isolated heavy rain accompanied by lightning and thunderstorm has been forecast in different parts till Tuesday. Alerts have been issued to various districts. A temporary ban has been imposed on fishing in the sea today and tomorrow, following the Indian Meteorological Department forecasting high velocity wind over Kerala.T<br />'' <br />'' The pre-monsoon showers in Kerala have caused crop loss and damages to houses in many parts. Untimely downpour accompanied by strong wind and lightning have battered Kannur and the high range districts of Idukki and Wayanad in recent days.<br />''  <br />