Associated Press: Strong southern winds pushed the Adriatic Sea into Venice again yesterday, submerging parts of the lagoon city a day after an unusually high tide caused the worst flooding in 20 years. Yesterday’s tidal surge peaked at 3 feet, 4 inches, well below Monday’s level of 5 feet, 1 inch, which marked the fourth-highest tide in the city’s recorded history and the worst since 1986. Still, the water yesterday was high enough to flood the landmark St. Mark’s Square and other …