Tropical Storm Bonnie moved over the Eastern North Pacific Ocean on Saturday. At 5:00 p.m. EDT on Saturday the center of Tropical Storm Bonnie was located at latitude 11.3°N and longitude 88.0°W which put it about 130 miles (210 km) west-southwest of Managua, Nicaragua. Bonnie was moving toward the west at 16 m.p.h. (26 km/h). The maximum sustained wind speed was 50 m.p.h. (80 km/h) and and there were wind gusts to 65 m.p.h. (105 km/h). The minimum surface pressure was 1000 mb.

Tropical Storm Bonnie moved across Central America and over the Eastern North Pacific Ocean on Saturday. The center of Bonnie’s circulation moved along the border between Nicaragua and Costa Rica. Bonnie dropped heavy rain on parts of Nicaragua and Costa Rica. It took about 12 hours for Tropical Storm Bonnie to cross Central America. Bonnie’s circulation was intact when it emerged over the Eastern North Pacific Ocean. The inner end of a rainband wrapped around the center of Tropical Storm Bonnie and an eye was visible on conventional and microwave satellite images. A ring of strong thunderstorms surrounded the eye and the strongest winds were occurring in that ring of storms. Storms near the center of circulation generated upper level divergence that pumped mass away from the tropical storm. Winds to tropical storm force extended out 70 miles (110 km) from the center of Bonnie.

Tropical Storm Bonnie will move through an environment favorable for intensification during the next 36 hours. Bonnie will move over water where the Sea Surface Temperatures are near 28˚C. It will move under an upper level ridge over Central America and the Eastern North Pacific Ocean. The upper level winds are weak in the ridge and there will be little vertical wind shear. Tropical Storm Bonnie will intensify during the next 36 hours. Bonnie is likely to strengthen to a hurricane by Sunday night. A period of rapid intensification could occur. Bonnie could intensify to a major hurricane early next week.

Tropical Storm Bonnie will move south of a high pressure system over Mexico. The high pressure system will steer Bonnie toward the west-northwest during the next 36 hours. On its anticipated track Tropical Storm Bonnie will remain south of El Salvador and Guatemala.