Complex sentence: On the morning of July 31, a burst of convection developed in association of a low pressure area; the convection persisted, and the first advisory on Tropical Depression Eight-E was issued later that afternoon.
Split into simpler sentences: On the morning of July 31, a burst of convection developed in association with a low pressure area. The convection persisted and the first advisory on Tropical Depression Eight-E was issued later that afternoon.