text: The wave gradually became more organized as it crossed the Caribbean and late on July 3 it strengthened into Tropical Depression Three about 80 miles ( 130 km ) east of Chetumal , Mexico .
simplified: The wave steadily became more organized as it came to the Caribbean Sea and late on July 3 it strengthened into Tropical Depression Three about 80 miles ( 130 km ) east of Chetumal , Mexico .