Complex sentence: At roughly 7:30 am on June 15, "Tampico" was sighted to the west at latitude 25 ° 14'north, longitude 109 ° 01' west.
Split into simpler sentences: At roughly 7:30 am on June 15, "Tampico" was sighted to the west. The position was latitude 25 ° 14'north, and Longitude 109 ° 01' west.