Tropical Storm Eta reorganized near western Cuba on Monday night. At 10:00 p.m. EST on Monday the center of Tropical Storm Eta was located at latitude 23.2°N and longitude 85.2°W which put it about 90 miles (145 km) north-northwest of the western tip of Cuba. Eta was moving toward the southwest at 9 m.p.h. (15 km/h). The maximum sustained wind speed was 50 m.p.h. (80 km/h) and there were wind gusts to 65 m.p.h. (105 km/h). The minimum surface pressure was 995 mb.

A Tropical Storm Watch was in effect for the Cuban provinces of La Habana, Artemisa, Mayabeque, Pinar del Rio and the Isle of Youth.

The circulation around Tropical Storm Eta exhibited more organization on Monday night. Thunderstorms redeveloped around the center of circulation. Storms near the center generated upper level divergence which pumped mass away from the tropical storm. Thunderstorms also increased in bands revolving around the center of Tropical Storm Eta. Winds to tropical storm force extended out 120 miles (195 km) on the northern side of Eta. Winds to tropical storm force only extended out 50 miles in the southern half of the circulation.

Tropical Storm Eta will move through an environment more favorable for intensification on Tuesday. Eta will move over the Loop Current which transports warm water from the Caribbean Sea into the southeast Gulf of Mexico. Tropical Storm Eta will be over water where the Sea Surface Temperature is near 29°C. An upper level low centered over Cuba will produce northerly winds which blow toward the top of Eta’s circulation on Tuesday. Those winds will cause vertical wind shear, but the shear will slowly decrease. Tropical Storm Eta will intensify on Tuesday and it could strengthen back into a hurricane.

The upper low over Cuba has been steering Tropical Storm Eta toward the southwest, but the steering winds are likely to weaken on Tuesday. Eta could stall northwest of Cuba. An upper level trough over the Rocky Mountains will move east during the next several days. The southern end of the trough could start to pull Eta toward the north on Wednesday.

Elsewhere over the Atlantic Ocean, an extratropical cyclone southwest of the Azores made a transition to Subtropical Storm Theta. At 10:00 p.m. EST on Monday the center of Tropical Storm Theta was located at latitude 28.8°N and longitude 40.3°W which put it about 995 miles (1600 km) southwest of the Azores. Theta was moving toward the east at 15 m.p.h. (24 km/h). The maximum sustained wind speed was 50 m.p.h. (80 km/h) and there were wind gusts to 65 m.p.h. (105 km/h). The minimum surface pressure was 1000 mb.