AP: The Meteorological Department has warned of winds gusting to 30-40 kmph and thunderstorms in several districts of the state. In this context, heavy rain and thunderstorms occurred in Narasaraopet area of Palnadu district on Saturday night. Family members said that Tallapaneni Nagamma (63) of Petlurivaripalem and Mekala Venkayamma (60) of Lakshmipuram died of heart attacks after being frightened by the sound of thunder.