Hurricane Boris was a deadly storm. It was the fourth cyclone of the 1996 Pacific hurricane season. It formed on June 27. During the night the depression became Tropical Storm Boris. Shortly after this, Boris rapidly became stronger. It became a hurricane. Just as an eye started to form, Boris made landfall in Mexico. It had strongest winds of 85 mph (140 kn/h). It quickly became weaker. It ended on July 1. Boris caused heavy flooding in southern Mexico. Ten deaths were reported.