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The Regional Meteorological Centre, Chennai, has said that rainfall occurred at isolated places over Kerala and Mahe during the 24 hours ending on Monday morning while very light rain was reported from Tamil Nadu. Piravom (Ernakulam) and Kurudamannil (Pathanmthitta) in Kerala recorded 1 cm each.
Outlook for Monday had hinted at the possibility of thunderstorms with lightning at isolated places over Tamil Nadu and Kerala.
Rain clouds from Sri Lanka
As for Tuesday, thunderstorms with lightning may be unleashed over Kerala.
They would be isolated over Tamil Nadu from Wednesday to Friday. Kerala will see isolated rain on Tuesday and Friday but scattered on Wednesday and Thursday.
Meanwhile, the New Delhi office of IMD has said that thundershowers with lighting would roll out over isolated parts of Tamil Nadu and Kerala until Thursday. Evening satellite pictures showed light rain clouds from Sri Lanka encroaching the South Tamil Nadu coast.
The European Centre for Medium-Range Weather Forecasts (ECMWF-IFS-HRES) has indicated possibility of heavier showers for the Palayankottai-Thoothukudi-Kovilpatti belt with a flare-up along the adjoining Ghat areas in its forecast for Monday and Tuesday (until noon).
The European model goes on to predict light showers for the south-interior parts and along the coast of Tamil Nadu covering Rameswaram, Madurai, Karaikudi, Dindigul, Thanjavur, Tiruchirappalli, Kaveripattinam, Puducherry and reaching up to the suburbs of Chennai during this period.
Rain along Ghats in South
Towards the East, the Ghat areas of Valparai, Coimbatore and Udhagamandalam and adjoining parts of Kerala and Coastal Karnataka until Mangaluru would compel watching, per the European model outlook. It has already predicted that the pre-monsoon showers may propel further northward later.
Showers for Himalayas
Meanwhile, two quick successive western disturbances affecting the hills of North-West India and adjoining plains from Tuesday night may trigger scattered to widespread rainfall/snowfall with isolated thunderstorms, lightning and hail likely over the hills from Wednesday to Friday.
The IMD has forecast isolated heavy falls for Jammu & Kashmir, Ladakh and Himachal Pradesh on Thursday and Friday. Isolated rainfall with thunderstorm and lightning is forecast over the plains of North-West India (Punjab, Haryana, Chandigarh and Delhi) during the same period.
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