Tag Archives: Wanda

Tropical Storm Wanda Speeds Northeast

Tropical Storm Wanda sped toward the northeast over the Atlantic Ocean west of the Azores on Sunday morning. At 4:00 a.m. EST on Sunday the center of Tropical Storm Wanda was located at latitude 38.5°N and longitude 35.5°W which put it about 460 miles (745 km) west of the Azores. Wanda was moving toward the northeast at 17 m.p.h. (28 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 1003 mb.

An upper level trough and a cold front over the central Atlantic Ocean were steering Tropical Storm Wanda quickly to the northeast on Sunday morning. The upper level trough was also producing strong southwesterly winds that were blowing across the top of Wanda’s circulation. Those winds were causing strong vertical wind shear and the shear was causing Tropical Storm Wanda to weaken. The strongest thunderstorms were occurring in a band in the southeastern part of Wanda. Bands in the other parts of the circulation consisted primarily of showers and lower clouds. The strongest winds were occurring with the thunderstorms in the southeastern part of Tropical Storm Wanda. Winds to tropical storm force extended out 70 miles (110 km) in the southeastern quadrant of Wanda. The winds in the other parts of Wanda’s circulation were blowing at less than tropical storm force.

The upper level trough and the cold front will continue to steer Tropical Storm Wanda toward the northeast during the next several days. Tropical Storm Wanda will move through an environment unfavorable for intensification during the next 24 hours. Wanda will move over water where the Sea Surface Temperatures are near 20˚C. The upper level trough will continue to cause strong vertical wind shear. The cold front is moving faster than Tropical Storm Wanda and Wanda is likely to merge with the cold front during the next 24 hours. Strong vertical wind shear and cold water will cause Wanda to make a transition to an extratropical cyclone when it merges with the cold front. On its anticipated track Wanda could approach Ireland as an extratropical cyclone early next week.

Tropical Storm Wanda Turns Back to the South

Tropical Storm Wanda turned back toward the south over the central Atlantic Ocean west of the Azores on Friday morning. At 11:00 a.m. EDT on Friday the center of Tropical Storm Wanda was located at latitude 40.6°N and longitude 37.8°W which put it about 605 miles (970 km) west-northwest of the Azores. Wanda was moving toward the south-southeast at 8 m.p.h. (13 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 994 mb.

Tropical Storm Wanda moved back toward the south on Friday morning as it continued to meander west of the Azores. The circulation around Tropical Storm Wanda remained well organized. The circulation was circular and there was a well defined center. Bands of showers and thunderstorms revolved around the center of Wanda. Storms near the center of circulation generated upper level divergence that pumped mass away to the north of the tropical storm. Winds to tropical storm force extended out 125 miles (200 km) on the western side of Tropical Storm Wanda. Winds to tropical storm force extended out 70 miles on the eastern side of Wanda.

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 23˚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. The thunderstorms that form will not rise as high into the atmosphere. 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 south of a high pressure system over the northern Atlantic Ocean during the next 24 hours. The high pressure system will push Wanda back toward the south during the next 24 hours. An upper level trough near the east coast of the U.S. will move eastward during the next several days. The upper level trough will cause the high pressure system to weaken. When the high weakens, the upper level trough will steer Wanda toward the northeast on Saturday. On its anticipated track Tropical Storm Wanda could approach the western Azores on Sunday.

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.

Wanda Transitions to a Tropical Storm

Former Subtropical Storm Wanda made a transition to a tropical storm on Monday afternoon. At 5:00 p.m. EDT on Monday the center of Tropical Storm Wanda was located at latitude 34.2°N and longitude 42.2°W which put it about 885 miles (1425 km) west-southwest of the Azores. Wanda was moving toward the east-northeast at 7 m.p.h. (11 km/h). The maximum sustained wind speed was 45 m.p.h. (75 km/h) and there were wind gusts to 60 m.p.h. (95 km/h). The minimum surface pressure was 996 mb.

The structure of former Subtropical Storm Wanda changed on Monday. The low level center of Wanda became separated from the upper level low that was previously over the top of it. So, the two centers were no longer vertically stacked. In addition, the wind field around Wanda contracted and the strongest winds were located closer to the center of circulation. Since the new structure of Wanda was more consistent with the structure of a tropical cyclone, the National Hurricane Center reclassified Wanda as a tropical storm.

The circulation around Tropical Storm Wanda was smaller. Winds to tropical storm force extended out 45 miles (75 km) from the center of Wanda. The strongest thunderstorms were occurring in bands on the eastern side of Wanda’s circulation. Since Wanda was over water where the Sea Surface Temperature is near 24˚C, the thunderstorms were not as tall as ones that occur in tropical storms farther south. Bands in the western half of the tropical storm consisted primarily of showers and lower clouds. The storms on the eastern side of Wanda generated upper level divergence that pumped mass away to the northeast of the tropical storm.

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 24˚C. Tropical Storm Wanda will be on the eastern side of the axis of the upper level trough. The upper level trough will produce southwesterly winds that will blow toward the top of Wanda’s circulation. Those winds will cause some vertical wind shear but the wind shear may be weak enough to allow for some intensification. Sinking, drier air could limit the formation of new thunderstorms on the western side of Wanda’s circulation and that could also inhibit intensification. Since Tropical Storm Wanda is now a smaller, more compact storm, it could extract enough energy from the Atlantic Ocean to be able to strengthen during the next 24 hours.

Since Tropical Storm Wanda is east of the axis of the upper level trough, southwesterly winds will steer Wanda toward the north-northeast during the next 36 hours. Wanda could move more toward the east later this week when it reaches a region where westerly winds are stronger. On its anticipated track Tropical Storm Wanda could approach the western Azores at the end of the week.

Subtropical Storm Wanda Meanders West of the Azores

Subtropical Storm Wanda meandered over the central Atlantic Ocean west of the Azores on Sunday. At 11:00 p.m. EDT on Sunday the center of Subtropical Storm Wanda was located at latitude 35.6°N and longitude 44.1°W which put it about 960 miles (1540 km) west of the Azores. Wanda was moving toward the southwest at 8 m.p.h. (13 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 990 mb.

The circulation of Subtropical Storm Wanda meandered within the larger circulation of an upper level trough west of the Azores on Sunday. Some drier air appeared to enter Wanda’s circulation on Sunday and fewer thunderstorms developed around the center of the subtropical storm. The strongest thunderstorms were occurring in bands in the eastern half of Subtropical Storm Wanda. Bands in the western half of the circulation consisted primarily of showers and lower clouds. Winds to tropical storm force extended out 100 miles (160 km) from the center of Wanda.

Subtropical Storm Wanda will move through an environment somewhat favorable for intensification during the next 36 hours. Wanda will move over water where the Sea Surface Temperatures are near 24˚C. It will remain under the axis of the upper level trough and there will be little vertical wind shear. However, drier air could limit the formation of new thunderstorms on the western side of Wanda’s circulation and that could inhibit intensification. Subtropical Storm Wanda could strengthen during the next 36 hours. If more thunderstorms form near the center of circulation Wanda could make a transition to a tropical storm during the next several days.

Subtropical Storm Wanda will meander within the upper level trough during the next 24 hours. The upper level trough will move east and it could move Wanda slowly toward the southeast during the next day or so. On its anticipated track Subtropical Storm Wanda could continue to meander west of the Azores for another day or two.

Subtropical Storm Wanda Develops West of the Azores

Subtropical Storm Wanda developed over the central Atlantic Ocean west of the Azores on Saturday night. At 11:00 p.m. EDT on Saturday the center of Subtropical Storm Wanda was located at latitude 36.2°N and longitude 45.4°W which put it about 1020 miles (1640 km) west of the Azores. Wanda was moving toward the southeast at 21 m.p.h. (33 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 1003 mb.

More thunderstorms formed near the center of a low pressure system over the central Atlantic Ocean and the National Hurricane Center designated the system as Subtropical Storm Wanda. Subtropical Storm Wanda began as an extratropical cyclone that formed near the East Coast of the U.S. The extratropical cyclone brought very strong winds to the northeastern U.S. several days ago before moving toward the central Atlantic Ocean. The extratropical cyclone became vertically stacked where the surface low pressure system was under the axis of the upper level trough. The vertical wind shear decreased when the system became vertically stacked. When the extratropical cyclone moved southeast over warmer water, the temperature difference on the opposing sides of fronts decreased and the fronts weakened. More thunderstorms developed near the center of the low pressure system and it assumed a more circular shape. The strongest winds eventually started to blow closer to the center and the National Hurricane Center designated it as Subtropical Storm Wanda.

Subtropical Storm Wanda exhibited some characteristics of a tropical cyclone. Thunderstorms formed near the center of Wanda. Bands of showers and thunderstorms formed and started to revolve around the center of circulation. The strongest rainband wrapped around the northern and eastern sides of the center of Subtropical Storm Wanda. Even though Wanda exhibited some of the characteristics of a tropical cyclone, it was under the axis of an upper level trough, which is why it was classified as a subtropical storm. Winds to tropical storm force extended out 100 miles (160 km) from the center of Subtropical Storm Wanda.

Subtropical Storm Wanda will move through an environment somewhat favorable for intensification during the next 24 hours. Wanda will move over water where the Sea Surface Temperatures are near 24˚C. It will remain under the axis of the upper level trough and there will be little vertical wind shear. Subtropical Storm Wanda is likely to strengthen during the next 24 hours. There is a chance it could intensify to a hurricane during the next several days.

Subtropical Storm Wanda will move along with the upper level trough during the next 24 hours. The upper level trough will carry Wanda slowly toward the southeast during the next several days. On its anticipated track Subtropical Storm Wanda could meander west-southwest of the Azores for several days.