MADRID—Two people died in Spain and troops rescued drivers trapped by snow as Storm Filomena caused travel chaos across the country, with Madrid seeing the heaviest snowfall in decades. The airport in Madrid was closed and skiers glided down Gran Via, normally one of the busiest streets in the capital. A woman died after she was trapped in her car when a river burst its banks near Malaga, southern Spain, and a homeless person froze to death in the eastern city of Calatayud, authorities said. “Let’s avoid travel and follow the instructions of the emergency services,” tweeted Prime Minister Pedro Sanchez. “Let’s be extremely careful in the face of the storm #Filomena.” Aena, which controls the country’s airports, said Madrid’s Barajas airport, which closed on Friday night, would remain closed for the rest of Saturday. It said at least 50 flights to Madrid, Malaga, Tenerife, and Ceuta, a Spanish territory …