Tag Archives: Tropical Storm Ana

Tropical Storm Ana Moves away from Bermuda

Tropical Storm Ana moved away from Bermuda on Sunday morning. At 11:00 a.m. EDT on Sunday the center of a Tropical Storm Ana was located at latitude 36.6°N and longitude 59.4°W which put it about 425 miles (690 km) northeast of Bermuda. Ana was moving toward the northeast at 14 m.p.h. (22 km/h). The maximum sustained wind speed was 40 m.p.h. (65 km/h) and there were wind gusts to 50 m.p.h. (80 km/h). The minimum surface pressure was 1007 mb.

Former Subtropical Storm Ana exhibited more of the characteristics of a tropical cyclone on Sunday morning and the National Hurricane Center reclassified Ana as a tropical storm. Most of the thunderstorms and the strongest wind speeds were occurring closer to the center of circulation, which are two important characteristics of a tropical cyclone. The strongest thunderstorms were occurring in narrow bands southeast of the center of Tropical Storm Ana. The strongest winds were occurring in those bands of thunderstorms. Winds to tropical storm force extended out 35 miles (55 km) in the southeastern quadrant of Ana. Bands in the other parts of the circulation consisted primarily of showers and lower clouds. The winds in the other quadrants of Tropical Storm Ana were blowing at less than tropical storm force.

Tropical Storm Ana will move through an environment unfavorable for a tropical storm during the next 36 hours. Ana will move over water where the Sea Surface Temperatures are near 20°C. Some drier air in the middle troposphere will wrap around parts of the circulation and the drier air will inhibit the development of thunderstorms. An upper level trough near the East Coast of the U.S. will move toward Ana. The trough will produce strong southwesterly winds which will cause the vertical wind shear to increase. A combination of more vertical wind shear, dry air and cool Sea Surface Temperatures will cause Ana to weaken.

The upper level trough will steer Tropical Storm Ana toward the northeast. On its anticipated track Tropical Storm Ana will continue to move away from Bermuda and Ana is likely to be absorbed by a cold front early next week.