Tropical Storm Boris formed off the southern Pacific coast of Mexico on Monday, bringing significant concerns for heavy rainfall and potential flooding. According to the U.S. National Hurricane Center, Boris was situated approximately 85 miles (135 kilometers) southeast of Acapulco and 50 miles (80 kilometers) southwest of Punta Maldonado. The storm has maximum sustained winds of 40 mph (65 kph) and is currently moving northeast at a slow pace of 2 mph (3 kph). It is anticipated that Boris will shift northward, resulting in rainfall totals between 4 to 10 inches (10 to 25 centimeters) across coastal regions of Guerrero and Oaxaca through Monday night. The storm is expected to make landfall along Guerrero's coast by Monday evening, raising alarms for life-threatening flooding and mudslides, particularly in steep terrain. A tropical storm warning is in effect for areas from Laguna de Chacahua in Oaxaca to Tecpan de Galeana in Guerrero, with storm conditions expected within the next 24 hours. Boris marks the second named storm of this Pacific hurricane season, which commenced on May 15, following Tropical Storm Amanda that formed earlier in June without threatening land.