Weather forecast today, Cyclone Fani in Chennai Tamil Nadu April 26, 2019 India. IMD has warned that Cyclone Fani could cross the north Tamil Nadu coast on April 30. In light of this, it has issued a red alert for areas in and around coastal Tamil Nadu and Puducherry. Weather in Delhi, Mumbai, Bengaluru, Kolkata, Chennai and other cities across India. A low-pressure area has formed today morning over east equatorial.