Category Archives: Atlantic, Caribbean, and Gulf of Mexico

Atlantic TCs

Tropical Depression Two Strengthens to Tropical Storm Arlene

Former Tropical Depression Two strengthened to Tropical Storm Arlene over the eastern Gulf of Mexico on Friday afternoon. At 2:00 p.m. EDT on Friday the center of Tropical Storm Arlene was located at latitude 26.7°N and longitude 86.2°W which put it about 265 miles (425 km) west of Ft. Meyers, Florida. Arlene was moving toward the south at 5 m.p.h. (8 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 1002 mb.

An Air Force Reserve Hurricane Hunter reconnaissance plane found sustained wind speeds to tropical storm force in the northeastern part of former Tropical Depression Two on Thursday afternoon and the National Hurricane Center upgraded the system to Tropical Storm Arlene. The distribution of thunderstorms in Tropical Storm Arlene was asymmetrical. Many of the thunderstorms were occurring in bands in the northeastern quadrant of Arlene’s circulation. Bands in the other parts of the tropical storm consisted primarily of showers and lower clouds. Storms near the center of Arlene generated upper level divergence that pumped mass away to the northeast of the tropical storm. Winds to tropical storm force extended out 65 miles (105 km) in the northeastern quadrant of Tropical Storm Arlene. The winds in the other parts of Arlene were blowing at less than tropical storm force.

Tropical Storm Arlene will move into an environment that will become unfavorable for intensification during the next 24 hours. Arlene will move over water where the Sea Surface Temperatures are near 27˚C. However, Tropical Storm Arlene will move under the southern part of an upper level trough over the eastern Gulf of Mexico. The upper level trough will produce westerly winds that will blow toward the top of Arlene’s circulation. Those winds will cause the vertical wind shear to increase. Drier air to the north and west of Tropical Storm Arlene will continue to inhibit the formation of thunderstorms in the western part of Arlene. The vertical wind shear and the drier air are likely to cause Tropical Storm Arlene to start to weaken during the next 24 hours.

Tropical Storm Arlene will be south of a large surface high pressure system over the eastern U.S. The high pressure system will move south on Friday and it will push Tropical Storm Arlene toward the south. On its anticipated track Tropical Storm Arlene will stay west of Florida. Arlene could move near the western end of Cuba by Saturday evening.

Tropical Depression Two Forms over Northeast Gulf of Mexico

Tropical Depression Two formed over the northeast Gulf of Mexico on Thursday afternoon. At 5:00 p.m. EDT on Thursday the center of Tropical Depression Two was located at latitude 28.0°N and longitude 86.6°W which put it about 250 miles (400 km) west of St. Petersburg, Florida. The tropical depression was moving toward the west-northwest at 2 m.p.h. (3 km/h). The maximum sustained wind speed was 35 m.p.h. (55 km/h) and there were wind gusts to 45 m.p.h. (75 km/h). The minimum surface pressure was 1007 mb.

Surface observations from buoys in the Gulf of Mexico and data acquired by a U.S. Air Force Hurricane Hunter reconnaissance plane indicated that a low pressure system over the northeast Gulf of Mexico had formed into a tropical depression on Thursday afternoon. Tropical Depression Two had a broad low level center of circulation. The distribution of thunderstorms in the tropical depression was asymmetrical. Many of the thunderstorms were occurring in bands in the eastern and northern part of Tropical Depression Two. Bands in the western and southern parts of the tropical depression consisted primarily of showers and lower clouds.

The surface center of Tropical Depression Two was slightly east of the axis of an upper level trough over the eastern Gulf of Mexico. The upper level trough was producing southwesterly winds that were blowing toward the top of the tropical depression. Those winds were causing vertical wind shear and the wind shear was contributing to the asymmetrical distribution of thunderstorms. In addition, drier air was north and west of Tropical Depression Two. The drier air was inhibiting the development of thunderstorms in the western part of the depression’s circulation.

Tropical Depression Two will be in an environment only marginally favorable for intensification during the next 24 hours. The tropical depression will be over water where the Sea Surface Temperatures are near 27˚C. However, the upper level trough over the eastern Gulf of Mexico will continue to cause vertical wind shear. The drier air will also continue to inhibit the formation of thunderstorms in the western part of the tropical depression. If the vertical wind shear does not get any stronger, then the tropical depression could strengthen to a tropical storm during the next 24 hours. On the other hand, if the wind shear increases, then the tropical depression could start to weaken.

Tropical Depression Two will be south of a large surface high pressure system over the eastern U.S. The steering currents will be weak during the next 12 hours and the tropical depression may not move much. The high pressure system will move south on Friday and it will start to push Tropical Depression Two toward the south. On its anticipated track Tropical Depression Two will stay southwest of Florida. It could move near the western end of Cuba by Saturday night.

Low Pressure System Develops over Gulf of Mexico

A weak low pressure system developed over the eastern Gulf of Mexico on Wednesday. The system was designated as Invest 91L by the National Hurricane Center. At 2:00 p.m. EDT on Wednesday the center of Invest 91L was located at latitude 26.4°N and longitude 85.9°W which put it about 275 miles (445 km) west of Naples, Florida. The low pressure system was nearly stationary. The maximum sustained wind speed was 25 m.p.h. (40 km/h) and there were wind gusts to 35 m.p.h. (55 km/h). The minimum surface pressure was 1009 mb.

A weak low pressure system developed over the eastern Gulf of Mexico on Wednesday and the system was designated as Invest 91L. The circulation around Invest 91L was not well organized. There was a broad counterclockwise rotation around the center of the low pressure system. At least one smaller center of rotation, that might have formed in a cluster of thunderstorms that dissipated on Tuesday night, was visible in the eastern side of the broader rotation. There were bands of showers and thunderstorms in the eastern and northern sides of the low pressure system. Bands in the western and southern parts of the system consisted primarily of lower clouds.

Invest 91L will be in an environment only marginally favorable for development of a tropical cyclone during the next 24 hours. The surface low pressure system will be over water where the Sea Surface Temperatures are near 27˚C. It will be under the eastern side of an upper level trough over the northeastern Gulf of Mexico. The upper level trough will produce southwesterly winds that will blow across the top of Invest 91L. Those winds will cause wind shear and the wind shear will inhibit the development of the surface low pressure system. There is also drier air over the northern Gulf of Mexico. The drier air will inhibit the formation of thunderstorms in the northern and western parts of Invest 91L. The National Hurricane Center is indicating that the probability is 20% that Invest 91L develops into a tropical cyclone during the next 48 hours. A reconnaissance plane is tentatively scheduled to investigate the system on Thursday afternoon, if necessary.

Invest 91L will continued to be under the eastern side of the upper level trough over the eastern Gulf of Mexico during the next 24 hours. The steering winds are weak under the upper level trough. So, Invest 91L could move with the upper level trough. The upper level trough is forecast to move slowly toward the east. Invest 91L could move slowly toward the southeast. If Invest 91L develops into a tropical cyclone with taller thunderstorms, then the winds in the middle troposphere could steer it more toward the north. Bands in the eastern side of the low pressure system are likely to bring locally heavy rain to parts of central and south Florida.

Tropical Cyclone Development Unlikely

The National Hurricane Center indicated on Monday that a strong extratropical cyclone over the Atlantic Ocean south of Nova Scotia is unlikely to make a transition to a tropical cyclone. At 1:00 p.m. EST on Monday the center of the extratropical cyclone was located at latitude 37.8°N and longitude 63.8°W which put it about 460 miles (745 km) south of Halifax, Nova Scotia. The extratropical cyclone was moving toward the north-northeast at 10 m.p.h. (16 km/h). The maximum sustained wind speed was 60 m.p.h. (95 km/h) and there were wind gusts to 75 m.p.h. (120 km/h). The minimum surface pressure was 986 mb.

The National Hurricane Center (NHC) issued a special Tropical Weather Outlook on Monday morning for a strong extratropical cyclone over the Atlantic Ocean south of Nova Scotia. NHC indicated in the Tropical Weather Outlook that it was unlikely the extratropical cyclone would make a transition to a tropical cyclone or a subtropical cyclone. The extratropical cyclone was subsequently designated at Invest 90L.

A circular area of showers and thunderstorms developed at the center of a large, occluded extratropical cyclone south of Nova Scotia on Monday. A clear circular area was visible at the center of the area of showers and thunderstorms on satellite images. The clear area resembled the appearance of an eye in a tropical cyclone. The thunderstorms did not extend high into the troposphere because the center of the extratropical cyclone was over water where the Sea Surface Temperatures are near 20˚C. The circular area of showers and thunderstorms in the middle of the extratropical cyclone was surrounded by a large area of cold, dry air. Bands of low clouds and showers were occurring in the cold, dry air. The extratropical cyclone was producing a large area of winds to tropical storm force.

The extratropical cyclone will move through an area that is only marginally favorable for a transition to a subtropical cyclone or a tropical cyclone. The extratropical cyclone will move over over water where the Sea Surface Temperatures are colder than 20˚C. It will move under the eastern part of an upper level low south of Nova Scotia. The upper level low will produce southerly winds that will blow toward the top of the extatropical cyclone. However, the upper level low is almost stacked vertically with the surface low pressure systems. So, the winds at different levels of the atmosphere are similar and there will be little vertical wind shear. Cold, dry air will continue to surrounded the circular area of thunderstorms at the center of the extratropical cyclone. Cold Sea Surface Temperatures and cold, dry air around the area of thunderstorms will inhibit a transition to a subtropical cyclone. There is a slight chance the extratropical cyclone could make a transition to a subtropical cyclone during the next 24 hours before it moves over even colder water.

The upper level low will steer the extratropical cyclone toward the north during the next 24 hours. On its anticipated track the extratropical cyclone could reach Nova Scotia on Tuesday. It will bring gusty winds and locally heavy rain to Nova Scotia.

Possible Subtropical Development Southeast of Bermuda

A low pressure system southeast of Bermuda could develop into a subtropical storm during the next few days. At 9:00 a.m. EST on Monday the center of the low pressure system was located at latitude 24.0°N and longitude 55.0°W which put it about 855 miles (1380 km) southeast of Bermuda. The low pressure system was moving toward the north at 5 m.p.h. (8 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 1005 mb.

A low pressure system southeast of Bermuda has the potential to develop into a subtropical storm this week. There is already a strong surface circulation around the low pressure system. The surface low pressure system is located northeast of an upper level low. Bands of showers and thunderstorms were occurring in the northern and eastern parts of the surface low pressure system. Bands in the southern and western parts of the surface low consisted primarily of showers and lower clouds.

The low pressure system southeast of Bermuda will move through an environment somewhat favorable for the development of a subtropical storm during the next 48 hours. The low pressure system will move over water where the Sea Surface Temperatures are near 26˚C. It will move under the northeastern part of an upper level low. The upper level low will produce southeasterly winds that will blow across the top of the surface low. Those winds will cause some vertical wind shear. The vertical wind shear will likely make the environment unfavorable for the development of a tropical storm. However, the wind shear may be weak enough to allow for the surface low to make a transition to a subtropical storm. The National Hurricane Center is indicating there is a probability of 40% that the surface low pressure system develops into a subtropical storm during the next five days.

The upper low will steer the surface low pressure system slowly toward the northwest during the next 48 hours. On its anticipated track the surface low pressure system will remain far to the southeast of Bermuda.

Tropical Depression Nicole Drops Heavy Rain over Southeast U.S.

Tropical Depression Nicole dropped heavy rain over parts of the southeastern U.S. on Friday morning. At 10:00 a.m. EST on Friday the center of Tropical Depression Nicole was located at latitude 34.2°N and longitude 84.3°W which put it about 35 miles (55 km) north of Atlanta, Georgia. Nicole was moving toward the north-northeast at 23 m.p.h. (37 km/h). The maximum sustained wind speed was 30 m.p.h. (50 km/h) and there were wind gusts to 40 m.p.h. (65 km/h). The minimum surface pressure was 1001 mb.

Tropical Storm Nicole dropped heavy rain over parts of the southeastern U.S. on Friday morning. Heavy rain was falling over eastern Tennessee and eastern Kentucky. Bands in the far eastern side of Nicole’s circulation contained thunderstorms that were dropping heavy rain over parts of eastern South Carolina, eastern North Carolina and southeastern Virginia. Easterly winds blowing around the northern side of Nicole’s circulation were enhancing convergence and rising motion ahead of a cold front moving toward the eastern U.S. The enhanced convergence and rising motion was contributing to rain that was falling in the region from Delaware to Ohio.

The cold front approaching the eastern U.S. and an upper level trough over the central U.S. will steer Tropical Depression Nicole quickly toward the north-northeast during Friday. On its anticipated track the center of Tropical Depression Nicole will be over West Virginia by Friday evening. Heavy rain falling over parts of the southeastern U.S. and Appalachians could cause flooding. Flood Watches were in effect for parts of northern South Carolina, western North Carolina and southern Virginia. There could be enough low level wind shear for tornadoes to develop in the bands on the far eastern side of the circulation around Tropical Depression Nicole. A Tornado Watch was in effect for eastern South Carolina, eastern North Carolina and southeastern Virginia.

Tropical Storm Nicole Brings Wind and Rain to Florida

Tropical Storm Nicole brought wind and rain to Florida on Thursday. At 4:00 p.m. EST on Thursday the center of Tropical Storm Nicole was located at latitude 29.4°N and longitude 83.2°W which put it about 25 miles (40 km) northwest of Cedar Key, Florida. Nicole was moving toward the northwest at 15 m.p.h. (24 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 990 mb.

A Tropical Storm Warning was in effect for the portion of the coast from the Flagler/Volusia County Line, Florida to Altamaha Sound, Georgia. The Tropical Storm Warning included Jacksonville. A Tropical Storm Warning was also in effect for the portion of the coast from Aripeka to Indian Pass, Florida.

Tropical Storm Nicole brought wind and rain as it moved across Central Florida. Nicole weakened gradually as it moved across the Florida Peninsula, but it still had a well organized circulation. Bands of showers and thunderstorms were revolving around the center of circulation. Winds to tropical storm force extended out 170 miles (275 km) from the center of Nicole’s circulation.

The strongest winds in Tropical Storm Nicole occurred near the east coast of Florida on Thursday. A weather station in Daytona Beach reported a sustained wind speed of 49 m.p.h. (79 km/h) and a wind gust of 70 m.p.h. (113 km/h). A weather station in St. Augustine reported a sustained wind speed of 46 m.p.h. (74 km/h) and a wind gust of 59 m.p.h. (95 km/h). A weather station in Jacksonville reported a sustained wind speed of 37 m.p.h. (59 km/h) and a wind gust of 56 m.p.h. (91 km/h). The winds were weaker along the west coast of Florida. A weather station in Tampa reported a sustained wind speed of 29 m.p.h. (46 km/h) and a wind gust of 53 m.p.h. (85 km/h).

An upper level trough and a surface cold front over the central U.S. will turn Tropical Storm Nicole toward the northeast during Thursday night. The center of Nicole will be over southern Georgia on Thursday night and it could be over western South Carolina by Friday afternoon. Tropical Storm Nicole will continue to weaken during the next 24 hours. Nicole will produce gusty winds over northern Florida, southern Georgia and parts of South Carolina. Those winds could cause scattered power outages. The large waves causing serious beach erosion along the east coast of Florida will start to diminish on Friday. Waves could cause some erosion of beaches in Georgia and South Carolina on Friday when Tropical Storm Nicole moves farther to the north. Nicole could drop locally heavy rain over parts of northern Florida, southern Georgia, and South Carolina. Heavy rain could cause floods in some locations.

Hurricane Nicole Makes Landfall in Florida

Hurricane Nicole made landfall in Florida early on Thursday. Nicole weakened to a tropical storm after it made landfall. At 4:00 a.m. EST on Wednesday the center of Tropical Storm Nicole was located at latitude 27.8°N and longitude 80.7°W which put it about 60 miles (95 km) southeast of Orlando, Florida. Nicole was moving toward the west-northwest at 14 m.p.h. (22 km/h). The maximum sustained wind speed was 70 m.p.h. (110 km/h) and there were wind gusts to 85 m.p.h. (145 km/h). The minimum surface pressure was 981 mb.

A Tropical Storm Warning was in effect for the portion of the coast from Boca Raton, Florida to South Santee River, South Carolina. The Tropical Storm Warning included West Palm Beach, Ft. Pierce, Daytona Beach, Jacksonville, and Charleston, South Carolina. A Tropical Storm Warning was in effect for Lake Okeechobee. A Tropical Storm Warning was in effect for the portion of the coast from Bonita Beach to Indian Pass, Florida, The Tropical Storm Warning included Tampa and St. Petersburg.

According to the National Hurricane Center, the center of Hurricane Nicole made landfall on the east coast of Florida just to the south of Vero Beach. The maximum sustained wind speed was 75 m.p.h. (120 km) at the time of landfall. Winds to hurricane force extended out 25 miles (40 km) in the eastern side of Nicole’s circulation at the time of landfall. Winds to tropical storm force extended out 450 miles (725 km) from the center of circulation.

Hurricane Nicole weakened to a tropical storm after the center moved inland over Central Florida, but Nicole was bringing strong, gusty winds to Central Florida. A weather station in Vero Beach reported a sustained wind speed of 40 m.p.h. (65 km/h) and a wind gust of 60 m.p.h. (97 km/h). A weather station in Melbourne reported a sustained wind speed of 52 m.p.h. (84 km/h) and a wind gust of 64 m.p.h. (103 km/h). A weather station in Orlando reported a sustained wind speed of 43 m.p.h. (69 km/h) and a wind gust of 63 m.p.h. (102 km/h). Tropical Storm Nicole was dropping heavy rain over parts of the Florida Peninsula.

Tropical Storm Nicole will move around the southwestern part of a surface high pressure system near the East Coast of the U.S. The high pressure system will steer Nicole toward the northwest during the next 12 hours. On its anticipated track the center of Tropical Storm Nicole will move over northern Florida on Thursday evening. An upper level trough and a cold front will approach Nicole from the west on Thursday night. The upper level trough and cold front will steer Tropical Storm Nicole toward the northeast on Friday. The center of Nicole could be over South Carolina on Friday afternoon.

Tropical Storm Nicole will weaken gradually as it moves across Central Florida. Nicole will continue to bring strong, gusty winds to central and northern Florida. Gusty winds could cause widespread power outages. Even though the center of Nicole will be inland, easterly winds will continue to blow water toward the east coast of Florida. Tropical Storm Nicole could cause a storm surge of up to 5 feet (1.5 meters) in some locations. Large waves will continue to cause significant beach erosion. Nicole will drop heavy rain over parts of central and northern Florida and southern Georgia. Heavy rain could cause fresh water floods in some locations.

Nicole Strengthens to a Hurricane East of Florida

Former Tropical Storm Nicole strengthened to a hurricane east of Florida on Wednesday evening. At 7:00 p.m. EST on Wednesday the center of Hurricane Nicole was located at latitude 26.6°N and longitude 78.5°W which put it about 100 miles (160 km) east of West Palm Beach, Florida. Nicole was moving toward the west at 12 m.p.h. (19 km/h). The maximum sustained wind speed was 75 m.p.h. (120 km/h) and there were wind gusts to 90 m.p.h. (145 km/h). The minimum surface pressure was 980 mb.

A Hurricane Warning was in effect for the portion of the coast from Boca Raton to the Flagler/ Volusia County Line, Florida. The Hurricane Warning included West Palm Beach, Ft. Pierce, Melbourne and Daytona Beach. A Hurricane Warning was in effect for the Abacos, Berry Islands, and Grand Bahama Island. A Hurricane Watch was in effect for the portion of the coast from the Boca Raton to Hallandale Beach, Florida. A Hurricane Watch was in effect for Lake Okeechobee. A Tropical Storm Warning was in effect for Bimini. A Tropical Storm Warning was in effect for the portion of the coast from Hallandale Beach to Boca Raton, Florida. A Tropical Storm Warning was in effect for Lake Okeechobee. A Tropical Storm Warning was in effect for the portion of the coast from the Flagler/Volusia County Line, Florida to the South Santee River, South Carolina. The Tropical Storm Warning includes Jacksonville, Florida and Charleston, South Carolina. A Tropical Storm Warning was in effect for the portion of the coast from Bonita Beach to Indian Pass, Florida. The Tropical Storm Warning included Tampa and St. Petersburg.

Former Tropical Storm Nicole intensified to a hurricane when it move over the warm water in the Gulf Stream Current on Wednesday evening. The eye of Hurricane Nicole was over Grand Bahama Island. The eye had a diameter of 30 miles (50 km). The eye was surrounded by a ring of thunderstorms and the strongest winds were occurring in the northern part of that ring. Bands of showers and thunderstorms were revolving around the core of Hurricane Nicole. Storms near the center generated upper level divergence that pumped mass away from the hurricane. The removal of mass caused the surface pressure to decrease at the center of circulation.

The strongest winds were occurring in the northern side of Hurricane Nicole, but the overall circulation was very large. Winds to tropical storm force extended out 480 miles (775 km) from the center of Nicole’s circulation. Stations along the east coast of Florida reported sustained wind speeds of tropical storm force on Wednesday evening. Electricity outages were reported in several areas. Northeasterly winds were pushing water toward the coast and water level rises were reported from South Carolina to Florida. Large waves were causing significant beach erosion along the east coast of Florida.

Hurricane Nicole will continue to move through an environment that is favorable for intensification during the next few hours. Nicole will move over warm water in the Gulf Stream Current where the Sea Surface Temperatures are near 28˚C. It will move through a region where the upper level winds are weak and there will be little vertical wind shear. Hurricane Nicole will extract more energy from the warmer water and it is likely to strengthen a little more during the next few hours.

Hurricane Nicole will move around the southwestern part of a surface high pressure system currently over the northeastern U.S. The high pressure system will steer Nicole toward the west-northwest during the next 12 hours. On its anticipated track Hurricane Nicole will make landfall on the east coast of Florida near or just to the north of West Palm Beach on Wednesday night. Nicole will be a hurricane when it reaches Florida. Hurricane Nicole will continue to bring strong, gusty winds and locally heavy rain to the east coast of Florida. The winds in the northern side of Nicole will continue to blow water toward the coast of Florida and the Southeast U.S. Those winds could cause a storm surge of up to 6 feet (1.8 meters) in some locations. Large waves will keep breaking on the coast and they will cause significant beach erosion.

Hurricane Nicole will move northwest across Central Florida on Thursday. Nicole will weaken back to a tropical storm when it moves across Florida. Nicole could bring tropical storm force winds to the area around Orlando. The center of Nicole will be over northern Florida on Thursday evening. Widespread electricity outages could occur in central and northern Florida. Nicole will drop locally heavy rain over central and northern Florida, and southern Georgia. Heavy rain could cause fresh water floods in some locations.

Tropical Storm Nicole Brings Wind and Rain to Northwestern Bahamas

Tropical Storm Nicole brought wind and rain to the Northwestern Bahamas on Wednesday afternoon. At 4:00 p.m. EST on Wednesday the center of Tropical Storm Nicole was located at latitude 26.5°N and longitude 77.9°W which put it about 135 miles (220 km) east of West Palm Beach, Florida. Nicole was moving toward the west at 13 m.p.h. (20 km/h). The maximum sustained wind speed was 70 m.p.h. (110 km/h) and there were wind gusts to 85 m.p.h. (135 km/h). The minimum surface pressure was 985 mb.

A Hurricane Warning was in effect for the portion of the coast from Boca Raton to the Flagler/ Volusia County Line, Florida. The Hurricane Warning included West Palm Beach, Ft. Pierce, Melbourne and Daytona Beach. A Hurricane Warning was in effect for the Abacos, Berry Islands, and Grand Bahama Island. A Hurricane Watch was in effect for the portion of the coast from the Boca Raton to Hallandale Beach, Florida. A Hurricane Watch was in effect for Lake Okeechobee. A Tropical Storm Warning was in effect for Bimini. A Tropical Storm Warning was in effect for the portion of the coast from Hallandale Beach to Boca Raton, Florida. A Tropical Storm Warning was in effect for Lake Okeechobee. A Tropical Storm Warning was in effect for the portion of the coast from the Flagler/Volusia County Line, Florida to the South Santee River, South Carolina. The Tropical Storm Warning includes Jacksonville, Florida and Charleston, South Carolina. A Tropical Storm Warning was in effect for the portion of the coast from Bonita Beach to Indian Pass, Florida. The Tropical Storm Warning included Tampa and St. Petersburg.

The center of Tropical Storm Nicole passed over Great Abaco Island in the Northwestern Bahamas on Wednesday. The center of Nicole’s circulation was just to the southeast of Grand Bahama Island on Wednesday afternoon. The inner end of a rainband wrapped completely around the center of circulation. An eye with a diameter of 30 miles (50 km) formed at the center of Tropical Storm Nicole. Bands of showers and thunderstorms were revolving around the core of Nicole. Storms near the center generated upper level divergence that pumped mass away from the tropical storm. The removal of mass caused the surface pressure to decrease at the center of circulation.

The strongest winds were occurring in the northern side of Tropical Storm Nicole, but the overall circulation was very large. Winds to tropical storm force extended out 480 miles (775 km) from the center of Nicole’s circulation. Stations along the east coast of Florida reported sustained wind speeds of tropical storm force on Wednesday afternoon. Electricity outages were reported in several areas. Northeasterly winds were pushing water toward the coast and water level rises were reported from South Carolina to Florida. Large waves were causing significant beach erosion along the east coast of Florida.

Tropical Storm Nicole will move through an environment that is favorable for intensification during the next few hours. Nicole will move over warm water in the Gulf Stream Current where the Sea Surface Temperatures are near 28˚C. It will move into a region where the upper level winds are weaker and there will be little vertical wind shear. Tropical Storm Nicole will extract more energy from the warmer water and it is likely to intensify to a hurricane during the next few hours.

Tropical Storm Nicole will move around the southwestern part of a surface high pressure system currently over the northeastern U.S. The high pressure system will steer Nicole toward the west-northwest during the next 12 hours. On its anticipated track Tropical Storm Nicole will make landfall on the east coast of Florida near or just to the north of West Palm Beach on Wednesday night. Nicole is likely to be a hurricane when it reaches Florida. Nicole will continue to bring strong, gusty winds and locally heavy rain to the east coast of Florida. The winds in the northern side of Nicole will continue to blow water toward the coast of Florida and the Southeast U.S. Those winds could cause a storm surge of up to 6 feet (1.8 meters) in some locations. Large waves will keep breaking on the coast and they will cause significant beach erosion.

Tropical Storm Nicole will move northwest across Central Florida on Thursday. Nicole could bring tropical storm force winds to the area around Orlando. The center of Nicole will be over northern Florida on Thursday evening. Widespread electricity outages could occur in central and northern Florida. Tropical Storm Nicole will drop locally heavy rain over central and northern Florida, and southern Georgia. Heavy rain could cause fresh water floods in some locations.