The wave of unseasonal thunderstorms is expected to enter the South from Thursday/Friday over Tamil Nadu, Puducherry, and Karnataka, an update from the India Meteorological Department (IMD) said on Wednesday evening. This is even as heavy to moderate rain lashed parts of Central India on Wednesday.
Thunderstorms accompanied with lightning and hail are forecast over Jharkhand, Madhya Maharashtra, Marathawada and Telangana and with lightning over Uttarakhand, East Madhya Pradesh, Vidarbha, Chhattisgarh, Bihar, plains of West Bengal, Sikkim, Odisha, Andaman & Nicobar Islands, Arunachal Pradesh, Assam, Meghalaya and Interior Karnataka on Thursday.
South-bound wave
On Friday, the forecast favours thunderstorms lining up accompanied by lightning over Jharkhand, Vidarbha, Chhattisgarh, Madhya Maharashtra, Marathawada and North Interior Karnataka. On Saturday, similar weather will pan out over Coastal Andhra Pradesh, Yanam, Tamil Nadu, Puducherry and Karaikal. On Sunday, thunderstorms and lightning are possible over Tamil Nadu, Puducherry and Karaikal.
Outlook until Thursday given out by the European Centre for Medium-Range Weather Forecasts said that isolated rain would continue over Uttar Pradesh, while it would be heavier across Amravati, Nagpur, Amla, Seoni, Gondia, Raipur, Bilaspur, Annupur, Sambalpur and Rourkela to Turumunga across Madhya Pradesh, Chhattisgarh and Jharkhand.
Wet to both sides of Ghats
In the South, rain or thundershowers is forecast along the Ghat regions bordering Tamil Nadu and Kerala across Udhagamandalam, Coimbatore, Pollachi, and Valparai and from Ernakulam to Thiruvananthapuram to Nagercoil in Tamil Nadu. A flare-up in activity is indicated over Pathanamthitta district in Kerala.
An IMD outlook, too, suggests that the persisting strong wind discontinuity (an elongated line where opposing wind regimes meet) over Central India with moisture inflow from Bay of Bengal will move south-westward over Peninsular India to sustain the volatile weather until tomorrow (Thursday).
Cooler spring, summer
Meanwhile, Japanese national forecaster Jamstec has retained a watch for cooler than normal spring and summer (March-April-May) for India except parts of North-West India.
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