Heavy rains are set to lash eastern, northeastern, western, and southern India today, with thunderstorms and gusty winds expected. Coastal Karnataka, Konkan, Goa, and Sub-Himalayan West Bengal anticipate very heavy downpours. Meanwhile, heatwave conditions will persist in parts of East Uttar Pradesh and Vidarbha. The monsoon is poised for further advance into Gujarat, Maharashtra, and Madhya Pradesh.