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Hurricane Lee Weakens East of the Northern Leeward Islands

Hurricane Lee weakened while it moved over the Atlantic Ocean east of the Northern Leeward Islands on Friday. At 11:00 p.m. EDT on Friday the center of Hurricane Lee was located at latitude 19.3°N and longitude 56.5°W which put it about 440 miles (705 km) east of the Northern Leeward Islands. Lee was moving toward the west-northwest at 13 m.p.h. (21 km/h). The maximum sustained wind speed was 115 m.p.h. (185 km/h) and there were wind gusts to 135 m.p.h. (220 km/h). The minimum surface pressure was 963 mb.

An upper level trough near Puerto Rico produced strong southwesterly winds that blew toward the top of Hurricane Lee. Those winds caused moderate vertical wind shear. Those winds also inhibited the upper level divergence in the southern side of Hurricane Lee. Hurricane Lee was unable to pump away as much mass as was flowing into Lee in the lower levels of the atmosphere. More mass accumulated in the center of Hurricane Lee and the surface pressure rose quickly on Friday.

The inner core of Hurricane Lee was disrupted by the moderate vertical wind shear. The ring of thunderstorms surrounding the eye was broken south of the center of Lee’s circulation. Bands in the southwestern part of Hurricane Lee consisted primarily of showers and lower clouds. Most of the thunderstorms were occurring in bands in the northern half of Lee’s circulation. Thunderstorms in the northern side of Lee still generated upper level divergence that pumped mass away to the north of the hurricane.

The size of the circulation around Hurricane Lee increased on Friday. Winds to hurricane force extended out 30 miles (50 km) from the center of Lee’s circulation. Winds to tropical storm force extended out 175 miles (280 km) from the center of circulation. The Hurricane Intensity Index (HII) was 20.6. The Hurricane Size Index (HSI) was 12.4 and the Hurricane Wind Intensity Size Index (HWISI) was 33.0.

Hurricane Lee will move through an environment only marginally favorable for intensification during the next 24 hours. Lee will move over water where the Sea Surface Temperatures are near 29°C. However, the upper level trough near Puerto Rico will still continue to cause vertical wind shear on Saturday. Hurricane Lee could continue to weaken during the next 24 hours.

Hurricane Lee will move around the southern side of a subtropical high pressure system over the Atlantic Ocean. The high pressure system will steer Lee toward the west-northwest during the next 24 hours. On its anticipated track, Hurricane Lee could be northeast of the Northern Leeward Islands by Saturday night.

Elsewhere over the Atlantic Ocean, Tropical Storm Margot was moved farther away from the Cabo Verde Islands. At 11:00 p.m. EDT on Friday the center of Tropical Storm Margot was located at latitude 19.5°N and longitude 35.8°W which put it about 810 miles (1310 km) west-northwest of the Cabo Verde Islands. Margot was moving toward the west-northwest 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 1005 mb.

Hurricane Lee Rapidly Intensifies to Cat. 5

Hurricane Lee rapidly intensified to Category 5 on the Saffir-Simpson Scale over Atlantic Ocean east of the Northern Leeward Islands on Thursday. At 11:00 p.m. EDT on Thursday the center of Hurricane Lee was located at latitude 17.3°N and longitude 52.4°W which put it about 705 miles (1135 km) east of the Northern Leeward Islands. Lee was moving toward the west-northwest at 14 m.p.h. (22 km/h). The maximum sustained wind speed was 160 m.p.h. (260 km/h) and there were wind gusts to 190 m.p.h. (240 km/h). The minimum surface pressure was 928 mb.

A circular eye with a diameter of 17 miles (28 km) was at the center of Hurricane Lee. A ring of thunderstorms surrounded the eye and the strongest winds were occurring in the ring of storms. Bands of showers and thunderstorms were revolving around the core of Lee’s circulation. Storms near the core generated strong upper level divergence that pumped large quantities of mass away from the hurricane. The removal of large amounts of mass caused the surface pressure to decrease rapidly.

Hurricane Lee rapidly intensified to Category 5 on the Saffir-Simpson Scale on Thursday. Winds to hurricane force extended out 45 miles (75 km) from the center of Lee’s circulation. Winds to tropical storm force extended out 140 miles (220 km) from the center of circulation. The Hurricane Intensity Index (HII) was 35.0. The Hurricane Size Index (HSI) was 13.4 and the Hurricane Wind Intensity Size Index (HWISI) was 48.4.

Hurricane Lee will move through an environment favorable for intensification during the next 24 hours. Lee will move over water where the Sea Surface Temperatures are near 29°C. It will move through a region where the upper level winds are weak and there will be little vertical wind shear. Hurricane Lee could continue to intensify during the next 24 hours.

Hurricane Lee will move around the southern side of a subtropical high pressure system over the Atlantic Ocean. The high pressure system will steer Lee toward the west-northwest during the next 36 hours. On its anticipated track, Hurricane Lee could be northeast of the Northern Leeward Islands by Friday night.

Elsewhere over the Atlantic Ocean, Tropical Storm Margot was spinning west-northwest of the Cabo Verde Islands. At 11:00 p.m. EDT on Thursday the center of Tropical Storm Margot was located at latitude 16.8°N and longitude 29.3°W which put it about 355 miles (570 km) west-northwest of the Cabo Verde Islands. Margot was moving toward the west-northwest at 16 m.p.h. (26 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 1004 mb.

Lee Rapidly Intensifies to a Major Hurricane

Hurricane Lee rapidly intensified to a major hurricane over Atlantic Ocean east of the Northern Leeward Islands on Thursday. At 5:00 p.m. EDT on Thursday the center of Hurricane Lee was located at latitude 16.9°N and longitude 51.3°W which put it about 780 miles (1260 km) east of the Northern Leeward Islands. Lee was moving toward the west-northwest at 15 m.p.h. (24 km/h). The maximum sustained wind speed was 130 m.p.h. (210 km/h) and there were wind gusts to 155 m.p.h. (250 km/h). The minimum surface pressure was 953 mb.

Hurricane Lee rapidly intensified to a major hurricane on Thursday. The inner end of rainband wrapped around the center of Lee’s circulation. An eye with a diameter of 23 miles (37 km) formed at the center of Hurricane Lee. A ring of thunderstorms surrounded the eye and the strongest winds were occurring in the ring of storms. Bands of showers and thunderstorms were revolving around the core of Lee’s circulation. Storms near the core generated strong upper level divergence that pumped large quantities of mass away from the hurricane. The removal of large amounts of mass caused the surface pressure to decrease rapidly.

Hurricane Lee rapidly intensified to Category 4 on the Saffir-Simpson Scale on Thursday. Winds to hurricane force extended out 30 miles (50 km) from the center of Lee’s circulation. Winds to tropical storm force extended out 140 miles (220 km) from the center of circulation. The Hurricane Intensity Index (HII) was 25.1. The Hurricane Size Index (HSI) was 10.3 and the Hurricane Wind Intensity Size Index (HWISI) was 35.4.

Hurricane Lee will move through an environment favorable for intensification during the next 24 hours. Lee will move over water where the Sea Surface Temperatures are near 29°C. It will move through a region where the upper level winds are weak and there will be little vertical wind shear. Hurricane Lee will intensify during the next 24 hours. Lee could strengthen to Category 5 on Friday.

Hurricane Lee will move around the southern side of a subtropical high pressure system over the Atlantic Ocean. The high pressure system will steer Lee toward the west-northwest during the next 36 hours. On its anticipated track, Hurricane Lee could be northeast of the Northern Leeward Islands by Friday night.

Elsewhere over the Atlantic Ocean, Tropical Storm Margot developed west-northwest of the Cabo Verde Islands. At 5:00 p.m. EDT on Thursday the center of Tropical Storm Margot was located at latitude 16.8°N and longitude 28.3°W which put it about 290 miles (465 km) west-northwest of the Cabo Verde Islands. Margot was moving toward the west-northwest 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 1004 mb.

Lee Intensifies to a Hurricane

Former Tropical Storm Lee intensified to a hurricane over the Atlantic Ocean east of the Northern Leeward Islands on Wednesday. At 5:00 p.m. EDT on Wednesday the center of Hurricane Lee was located at latitude 14.9°N and longitude 46.4°W which put it about 1130 miles (1815 km) east of the Northern Leeward Islands. Lee was moving toward the west-northwest at 14 m.p.h. (22 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 991 mb.

Former Tropical Storm Lee rapidly intensified to a hurricane on Wednesday. The inner end of a rainband wrapped most of the way around the center of Lee’s circulation. The strongest winds were occurring in the inner end of the rainband. An eye was forming at the center of Hurricane Lee. Bands of showers and thunderstorms were revolving around the center of circulation. Storms near the center generated upper level divergence that pumped mass away from the hurricane. Winds to hurricane force extended out 20 miles (30 km) from the center of lee’s circulation. Winds to tropical storm force extended out 90 miles (145 km) from the center of circulation.

Hurricane Lee will move through an environment favorable for intensification during the next 48 hours. Lee will move over water where the Sea Surface Temperatures are near 29°C. It will move through a region where the upper level winds are weak and there will be little vertical wind shear. Hurricane Lee will intensify during the next 48 hours. Lee could strengthen to a major hurricane on Friday.

Hurricane Lee will move around the southern side of a subtropical high pressure system over the Atlantic Ocean. The high pressure system will steer Lee toward the west-northwest during the next 36 hours. On its anticipated track, Tropical Storm Lee could be northeast of the Northern Leeward Islands by Friday night.

Tropical Storm Lee Forms East of the Lesser Antilles

Tropical Storm Lee formed east of the Lesser Antilles on Tuesday afternoon. At 5:00 p.m. EDT on Tuesday the center of Tropical Storm Lee was located at latitude 13.2°N and longitude 41.8°W which put it about 1315 miles (2115 km) east of the Lesser Antilles. Lee was moving toward the west-northwest at 16 m.p.h. (26 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 1005 mb.

A low pressure system within a tropical wave over the Atlantic Ocean east of the Lesser Antilles strengthened on Tuesday afternoon and the U.S. National Hurricane Center designated the system as Tropical Storm Lee. More thunderstorms developed near the center of Lee’s circulation during the afternoon. Bands of showers and thunderstorms were revolving around the center of circulation. Storms near the center started to generate upper level divergence that pumped mass away form the tropical storm. Winds to tropical storm force extended out 65 miles (105 km) from the center of Tropical Storm Lee.

Tropical Storm Lee will move through an environment favorable for intensification during the next 36 hours. Lee will move over water where the Sea Surface Temperatures are near 29°C. It will move through a region where the upper level winds are weak and there will be little vertical wind shear. Tropical Storm Lee will intensify during the next 36 hours. Lee could strengthen to a hurricane by Thursday.

Tropical Storm Lee will move around the southern side of a subtropical high pressure system over the Atlantic Ocean. The high pressure system will steer Lee toward the west-northwest during the next 36 hours. On its anticipated track, Tropical Storm Lee could be northeast of the Leeward Islands by Friday night.

Hurricane Julia Hits Nicaragua

Hurricane Julia hit the coast of Nicaragua early on Sunday. At 8:00 a.m. EDT on Sunday the center of Hurricane Julia was located at latitude 12.4°N and longitude 84.6°W which put it about 60 miles (95 km) west-northwest of Bluefields, Nicaragua. Julia was moving toward the west at 16 m.p.h. (26 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 988 mb.

A Hurricane Warning was in effect for the portion of the coast from Bluefields to Puerto Cabezas, Nicaragua. A Hurricane Watch was in effect for the portion of the coast from Puerto Cabezas, Nicaragua to the border with Honduras. Tropical Storm Warnings were in effect for the portion of the coast from Bluefields, Nicaragua to the border with Costa Rica and from Puerto Cabezas to the border with Honduras. Tropical Storm Warnings were in effect for the Pacific coast of Nicaragua, the Pacific coast of Honduras and the entire coast of El Salvador. A Tropical Storm Watch was in effect for the portion of the coast from Punta Patuca, Honduras to the border with Nicaragua. A Tropical Storm Watch is in effect for the Pacific coast of Guatemala.

Hurricane Julia made landfall on the Caribbean coast of Nicaragua north of Bluefields early on Sunday. Julia strengthened before it made landfall. A circular eye with a diameter of 40 miles (65 km) was at the center of Hurricane Julia at landfall. The maximum sustained wind speed was 85 m.p.h. (135 km) at the time of landfall. Winds to hurricane force extended out 35 miles (55 km) from the center of Julia’s circulation. Winds to tropical storm force extended out 115 miles (185 km) from the center of circulation.

Hurricane Julia will move south of a high pressure system over the Caribbean Sea. The high pressure system will steer Julia toward the west during the next 36 hours. On its anticipated track Hurricane Julia will move across Nicaragua on Sunday. Julia will weaken as it moves across Nicaragua, but it will continue to bring strong gusty winds and locally heavy rain. Heavy rain will cause flash floods in some locations. Hurricane Julia will also bring gusty winds and locally heavy rain to southern Honduras, southwestern Guatemala and to El Salvador. The center of Julia could move over the Eastern North Pacific Ocean on Sunday night. Tropical Storm Warnings are in effect for the Pacific coasts of Nicaragua, Honduras and El Salvador. A Tropical Storm Watch is in effect for the Pacific coast of Guatemala.

Julia Strengthens to a Hurricane East of Nicaragua

Former Tropical Storm Julia strengthened to a hurricane over the Southwest Caribbean Sea east of Nicaragua on Saturday night. At 11:00 p.m. EDT on Saturday the center of Hurricane Julia was located at latitude 12.5°N and longitude 82.7°W which put it about 80 miles (130 km) east-northeast of Bluefields, Nicaragua. Julia was moving toward the west at 16 m.p.h. (26 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 988 mb.

A Hurricane Warning was in effect for San Andres, Providencia, and Santa Catalina Islands. A Hurricane Warning was in effect for the portion of the coast from Bluefields to Puerto Cabezas, Nicaragua. A Hurricane Watch was in effect for the portion of the coast from Puerto Cabezas, Nicaragua to the border with Honduras. Tropical Storm Warnings were in effect for the portion of the coast from Bluefields, Nicaragua to the border with Costa Rica and from Puerto Cabezas to the border with Honduras. Tropical Storm Warnings were in effect for the Pacific coast of Nicaragua, the Pacific coast of Honduras and the entire coast of El Salvador. A Tropical Storm Watch was in effect for the portion of the coast from Punta Patuca, Honduras to the border with Nicaragua.

A circular eye with a diameter of 40 miles (65 km) formed at the center of Hurricane Julia on Saturday night. The eye was surrounded by a ring of strong thunderstorms and the strongest winds were occurring in that ring of storms. Bands of showers and thunderstorms were revolving around the core of Hurricane Julia. Storms near the core generated upper level divergence that pumped mass away from the hurricane. Winds to hurricane force extended out 35 miles (55 km) from the center of Julia’s circulation. Winds to tropical storm force extended out 115 miles (185 km) from the center of circulation.

Hurricane Julia will move through an environment favorable for intensification during the next few hours. Julia will move over water where the Sea Surface Temperatures are near 29˚C. It will move under the axis of an upper level ridge over the Caribbean Sea. The upper level winds are weak near the axis of the ridge and there will be little vertical wind shear. Hurricane Julia could intensify during the next few hours. Julia will being to weaken when it makes landfall in Nicaragua.

Hurricane Julia will move south of a high pressure system over the Caribbean Sea. The high pressure system will steer Julia toward the west during the next 36 hours. On its anticipated track Hurricane Julia will make landfall on the east coast of Nicaragua in a few hours. Julia will bring strong gusty winds and locally heavy rain to Nicaragua on Sunday. Heavy rain will cause flash floods in some locations. Julia could also cause a storm surge of up to 7 feet (2 meters) along the east coast of Nicaragua. Hurricane Julia will also bring gusty winds and locally heavy rain to southern Honduras and to El Salvador.

Tropical Storm Julia Strengthens over Southwest Caribbean

Tropical Storm Julia strengthened over the Southwest Caribbean Sea on Saturday morning. At 8:00 a.m. EDT on Saturday the center of Tropical Storm Julia was located at latitude 12.8°N and longitude 79.0°W which put it about 165 miles (2705 km) east-southeast of Isla de Providencia, Colombia. Julia was moving toward the west at 21 m.p.h. (33 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 994 mb.

A Hurricane Warning was in effect for San Andres, Providencia, and Santa Catalina Islands. A Hurricane Warning was in effect for the portion of the coast from Bluefields to Puerto Cabezas, Nicaragua. A Hurricane Watch was in effect for the portion of the coast from Puerto Cabezas, Nicaragua to the border with Honduras. Tropical Storm Warning were in effect for the portion of the coast from Bluefields, Nicaragua to the border with Costa Rica and from Puerto Cabezas to the border with Honduras. A Tropical Storm Watch was in effect for the portion of the coast from Punta Patuca, Honduras to the border with Nicaragua.

Tropical Storm Julia strengthened over the Southwest Caribbean Sea east of Nicaragua on Saturday morning. More thunderstorms developed near the center of Julia’s circulation and in bands revolving around the center. Storms near the center of circulation generated upper level divergence that pumped mass away from the tropical storm. The removal of mass caused the surface pressure to decrease. Winds to tropical storm force extended out 110 miles (175 km) from the center of circulation.

Tropical Storm Julia will move through an environment favorable for intensification during the next 18 hours. Julia will move over water where the Sea Surface Temperatures are near 29˚C. It will move under the axis of an upper level ridge over the Caribbean Sea. The upper level winds are weak near the axis of the ridge and there will be little vertical wind shear. Tropical Storm Julia will intensify during the next 36 hours. Julia is likely to strengthen to a hurricane during the the next 12 hours. Tropical Storm Julia could intensify rapidly after an inner core with an eye and an eyewall form.

Tropical Storm Julia will move south of a high pressure system over the Caribbean Sea. The high pressure system will steer Julia toward the west during the next 36 hours. On its anticipated track Tropical Storm Julia will reach San Andres, Providencia and the Santa Catalina Islands by Saturday evening. It could be a hurricane by that time. Julia could reach the coast of Nicaragua early on Sunday. Julia will bring strong gusty winds and locally heavy rain. Heavy rain will cause flash floods in some locations. Julia could also cause a storm surge of up to 7 feet (2 meters).

Tropical Storm Julia Develops North of Colombia

Tropical Storm Julia developed over the Caribbean Sea just north of Colombia on Friday morning. At 11:00 a.m. EDT on Friday the center of Tropical Storm Julia was located at latitude 12.7°N and longitude 73.1°W which put it about 110 miles (175 km) west of the northern tip of the Guajira Peninsula, Colombia. Julia was moving toward the west at 18 m.p.h. (30 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.

A Hurricane Warning was in effect for San Andres, Providencia, and Santa Catalina Islands. A Hurricane Watch was in effect for the portion of the coast from Bluefields, Nicaragua to the border with Honduras. A Tropical Storm Warning for the portion of the coast from Riohacha, Colombia eastward to the border with Venezuela. A Tropical Storm Watch was in effect for the portion of the coast from Punta Patuca, Honduras to the border with Nicaragua.

Former Tropical Depression Thirteen strengthened on Friday morning after the center of circulation moved over the Caribbean Sea north of Colombia and the National Hurricane Center upgraded the weather system to Tropical Storm Julia. Almost half of the circulation of Tropical Storm Julia was still over northern Colombia. More thunderstorms formed in the northern side of Julia which was over the Caribbean Sea. The inner end of a rainband wrapped around the northern and western sides of the center of Tropical Storm Julia. Storms near the center of Julia generated upper level divergence that pumped mass away to the west of the Tropical Storm. Winds to tropical storm force extended out 80 miles in the northern side of Julia’s circulation. The winds in the southern half of Julia were blowing at less than tropical storm force.

Tropical Storm Julia will move into an environment favorable for intensification during the next 36 hours. Julia will move over water where the Sea Surface Temperatures are near 29˚C. It will move under the axis of an upper level ridge over the Caribbean Sea. The upper level winds are weak near the axis of the ridge and there will be little vertical wind shear. Tropical Storm Julia will intensify during the next 36 hours. Julia is likely to strengthen to a hurricane during the weekend. Tropical Storm Julia could intensify rapidly after an inner core with an eye and an eyewall form.

Tropical Storm Julia will move south of a high pressure system over the Caribbean Sea. The high pressure system will steer Julia toward the west during the next 48 hours. On its anticipated track Tropical Storm Julia will move over the southwestern Caribbean Sea on Friday. Julia could reach San Andres, Providencia and the Santa Catalina Islands by Saturday evening. It could be a hurricane by that time. Julia could reach the coast of Nicaragua on Sunday morning. Julia will bring strong gusty winds and locally heavy rain. Heavy rain will cause flash floods in some locations.

Potential Tropical Cyclone Thirteen Prompts Hurricane Watch by Colombia

A weather system designated Potential Tropical Cyclone Thirteen prompted the government of Colombia to issue a Hurricane Watch for some islands in the western Caribbean Sea. At 2:00 p.m. EDT on Thursday the center of Potential Tropical Cyclone Thirteen was located at latitude 11.5°N and longitude 67.7°W which put it about 100 miles (160 km) east-southeast of Curacao. Potential Tropical Cyclone Thirteen was moving toward the west at 15 m.p.h. (24 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 1005 mb.

A Hurricane Watch was in effect for San Andres, Providencia, and Santa Catalina Islands. A Tropical Storm Warning for the portion of the coast from Riohacha, Colombia eastward to the border with Venezuela.

A weather system over northern Venezuela strengthened on Thursday afternoon and the National Hurricane Center designated the system as Potential Tropical Cyclone Thirteen. The center of Potential Tropical Cyclone Thirteen was near the northern coast of Venezuela. More thunderstorms formed near the center of circulation on Thursday afternoon. Bands of showers and thunderstorms were revolving about the center. Storms near the center generated upper level divergence that pumped mass away from the weather system.

The primary factor keeping Potential Tropical Cyclone Thirteen from strengthening is that half of the circulation is over land. Potential Tropical Cyclone Thirteen will move into an environment favorable for intensification when the center of circulation moves over the southern Caribbean Sea. Potential Tropical Cyclone Thirteen will move over water where the Sea Surface Temperatures are near 29˚C. It will move under the axis of an upper level ridge over the Caribbean Sea. The upper level winds are weak near the axis of the ridge and there will be little vertical wind shear. Potential Tropical Cyclone Thirteen could strengthen to a tropical storm during the next 24 hours. It could intensify to a hurricane during the weekend.

Potential Tropical Cyclone Thirteen will move south of a high pressure system over the Caribbean Sea. The high pressure system will steer the potential tropical cyclone toward the west during the next 48 hours. On its anticipated track the center of Potential Tropical Cyclone Thirteen will along the coast of northwestern Venezuela during the next 24 hours. The center will move over southwestern Caribbean Sea on Friday. Potential Tropical Cyclone Thirteen will bring gusty winds and locally heavy rain to northwestern Venezuela and northeastern Colombia. It will also bring gusty winds and locally heavy rain to Curacao, Bonaire and Aruba. Heavy rain could cause flash floods in some locations. Potential Tropical Cyclone Thirteen could approach the coast of Nicaragua on Sunday. It could be a hurricane by that time.