Tropical Storm Wanda Wanders West of the Azores

Tropical Storm Wanda continued to wander over the Atlantic Ocean west of the Azores on Wednesday. At 5:00 p.m. EDT on Wednesday the center of Tropical Storm Wanda was located at latitude 39.8°N and longitude 39.5°W which put it about 680 miles (1100 km) west-northwest of the Azores. Wanda was moving toward the north at 10 m.p.h. (16 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 992 mb.

Tropical Storm Wanda exhibited a typical structure for a late season, high latitude tropical storm. A circular eyelike feature was present at the center of Wanda. The eyelike feature was surrounded by a ring of showers and thunderstorms. The strongest winds were occurring in the ring of showers and thunderstorms. Bands of showers and thunderstorms revolved around the core of Tropical Storm Wanda. Since Wanda was over cooler Sea Surface Temperatures, the thunderstorms were not rising as high as they would have if Tropical Storm Wanda was over warmer water in the tropics. Winds to tropical storm force extended out 100 miles (160 km) on the eastern side of Wanda. Winds to tropical storm force extended out 70 miles (110 km) in the western half of the circulation.

Tropical Storm Wanda will move through an environment that is somewhat favorable for intensification during the next 24 hours. Wanda will move over water where the Sea Surface Temperatures are near 22˚C. Even though the water is colder than in the tropics, colder air in the middle and upper troposphere will allow for enough instability for the formation of thunderstorms. Thunderstorms that form will not rise as high into the atmosphere and they will not generate a lot of upper level divergence which could inhibit intensification. Tropical Storm Wanda will move through a region where the upper level winds are weak and there will be little vertical wind shear. Tropical Storm Wanda could extract enough energy from the Atlantic Ocean to be able to strengthen during the next 24 hours.

Tropical Storm Wanda will move west of a high pressure system over the eastern Atlantic Ocean during the next 24 hours. The high will steer Wanda toward the north-northeast during the next 24 hours. A second high pressure system will move north of Tropical Storm Wanda on Friday. The second high will push Wanda back toward the southeast. On its anticipated track Tropical Storm Wanda could approach the western Azores during the weekend.