Tag Archives: Bermuda

Hurricane Sam Passes East of Bermuda

Hurricane Sam passed east of Bermuda on Saturday morning. At 11:00 a.m. EDT on Saturday the center of Hurricane Sam was located at latitude 33.9°N and longitude 59.3°W which put it about 335 miles (540 km) east-northeast of Bermuda. Sam was moving toward the northeast at 17 m.p.h. (28 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 945 mb.

Hurricane Sam was still a powerful hurricane when it passed east of Bermuda on Saturday morning. Sam was rated at Category 4 on the Saffir-Simpson Scale. A circular eye with a diameter of 30 miles (50 km) was present at the center of Hurricane Sam. 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 round the core of Sam’s circulation. Storms near the core generated strong upper level divergence that pumped mass away to the north of the hurricane.

The size of the circulation around Hurricane Sam continued to increase in size as it moved farther to the north. Winds to hurricane force extended out 65 miles (10 km) from the center of Sam. Winds to tropical storm force extended out 240 miles (390 km) from the center of circulation. The Hurricane Intensity Index (HII) for Hurricane Sam was 25.1. The Hurricane Size Index (HSI) was 20.6 and the Hurricane Wind Intensity Size Index (HWISI) was 45.7.

Hurricane Sam will move through an environment capable of maintaining a major hurricane during the next 12 hours. Sam will move over water where the Sea Surface Temperatures are near 27˚C. It will move through a region where the upper level winds are weak during the next 12 hours. An upper level trough east of the U.S. will produce southwesterly winds that will start to affect Hurricane Sam on Sunday. Those winds will blow toward the top of Sam’s circulation and they will cause more vertical wind shear. Hurricane Sam will also move over cooler water on Sunday. The wind shear and cooler water will cause Hurricane Sam to weaken as it begins a transition to a strong extratropical cyclone.

The upper level trough east of the U.S. will steer Hurricane Sam toward the northeast later during the next several days. On its anticipated track Hurricane Sam will pass southeast of Newfoundland on Monday. Sam could be a powerful extratropical cyclone southeast of Greenland by early next week.

Elsewhere over the Atlantic Ocean, Tropical Storm Victor weakened west of the Cabo Verde Islands. At 11:00 a.m. EDT on Saturday the center of Tropical Storm Victor was located at latitude 13.1°N and longitude 37.2°W which put it about 905 miles (1455 km) west of the Cabo Verde Islands. Victor was moving toward the northwest at 12 m.p.h. (19 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.

Bermuda Issues Tropical Storm Warning Because of Hurricane Sam

Bermuda issued a Tropical Storm Warning because of the potential effects of Hurricane Sam. At 5:00 p.m. EDT on Thursday the center of Hurricane Sam was located at latitude 23.6°N and longitude 60.9°W which put it about 645 miles (1040 km) south-southeast of Bermuda. Sam was moving toward the northwest at 14 m.p.h. (22 km/h). The maximum sustained wind speed was 145 m.p.h. (235 km/h) and there were wind gusts to 170 m.p.h. (280 km/h). The minimum surface pressure was 938 mb.

A Tropical Storm Warning was in effect for Bermuda.

Hurricane Sam continued to be a powerful hurricane on Thursday. Sam was rated at Category 4 on the Saffir-Simpson Scale. A circular eye with a diameter of 28 miles (44 km) was present at the center of Hurricane Sam. 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 round the core of Sam’s circulation. Storms near the core generated strong upper level divergence that pumped mass away from the hurricane.

The size of the circulation around Hurricane Sam was increasing in size as it moved farther to the north. Winds to hurricane force extended out 60 miles (95 km) from the center of Sam. Winds to tropical storm force extended out 150 miles (240 km) from the center of circulation. The Hurricane Intensity Index (HII) for Hurricane Sam was 29.8. The Hurricane Size Index (HSI) was 17.5 and the Hurricane Wind Intensity Size Index (HWISI) was 47.3.

Hurricane Sam will move through an environment capable of maintaining a major hurricane during the next 36 hours. Sam will move over water where the Sea Surface Temperatures are near 28˚C. It will move through a region where the upper level winds are weak during the next 24 hours. An upper level trough east of the U.S. will produce southwesterly winds that will start to affect Hurricane Sam later on Friday. Those winds will blow toward the top of Sam’s circulation and they will cause more vertical wind shear. The wind shear will cause Hurricane Sam to start to weaken.

Hurricane Sam will move around the western end of a high pressure system over the Atlantic Ocean during the next 24 hours. The high will steer Sam toward the north during that time period. The upper level trough east of the U.S. will start to steer Hurricane Sam toward the northeast later on Friday. On its anticipated track Hurricane Sam will pass east of Bermuda on Friday night. The western fringes of Sam could bring gusty winds and locally heavy rain to Bermuda, which is why the Tropical Storm Warning was issued.

Elsewhere over the Atlantic Ocean, Tropical Storm Victor strengthened a little southwest of the Cabo Verde Islands. At 5:00 p.m. EDT on Thursday the center of Tropical Storm Victor was located at latitude 9.9°N and longitude 30.0°W which put it about 585 miles (940 km) southwest of the Cabo Verde Islands. Victor was moving toward the west-northwest at 14 m.p.h. (22 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 1003 mb.

Hurricane Sam Strengthens Back to Cat. 4

Hurricane Sam strengthened back to Category 4 on the Saffir-Simpson Scale on Tuesday morning. At 11:00 a.m. EDT on Tuesday the center of Hurricane Sam was located at latitude 17.5°N and longitude 54.3°W which put it about 580 miles (935 km) east of the Northern Leeward Islands. Sam moving toward the northwest at 8 m.p.h. (13 km/h). The maximum sustained wind speed was 130 m.p.h. (215 km/h) and there were wind gusts to 155 m.p.h. (250 km/h). The minimum surface pressure was 954 mb.

Hurricane Sam strengthened back to Category 4 after completing several Eyewall Replacement Cycles. The Eyewall Replacement Cycles also resulted in an increase in the size of Hurricane Sam. A larger circular eye with a diameter of 40 miles (65 km) was present at the center of Sam. 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 Sam. Storms near the core generated upper level divergence that pumped mass away from the hurricane.

The circulation around Hurricane Sam was larger after the completion of the Eyewall Replacement Cycles. Winds to hurricane force extended out 40 miles (65 km) from the center of Sam. Winds to tropical storm force extended out 140 miles (225 km) from the center of circulation. The Hurricane Intensity Index (HII) for Hurricane Sam was 25.1. The Hurricane Size Index (HSI) was 14.2 and the Hurricane Wind Intensity Size Index (HWISI) was 39.3.

Hurricane Sam will move through an environment capable of sustaining a major hurricane during the next 48 hours. Sam will move over water 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 Sam could strengthen in the favorable environment.

Hurricane Sam will move around the southwestern part of a subtropical high pressure system over the Atlantic Ocean. The high will steer Sam toward the northwest during the next 48 hours. On its anticipated track Hurricane Sam could pass northeast of the Northern Leeward Islands on Thursday. Sam could be southeast of Bermuda by Friday.

Subtropical Storm Teresa Develops North of Bermuda

Subtropical Storm Teresa developed north of Bermuda on Friday afternoon. At 5:00 p.m. EDT on Friday the center of Subtropical Storm Teresa was located at latitude 34.5°N and longitude 64.5°W which put it about 155 miles (245 km) north of Bermuda. Teresa moving toward the northwest at 14 m.p.h. (22 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 1008 mb.

A distinct low level of circulation was evident under an upper level low pressure system north of Bermuda and the National Hurricane Center designated the system as Subtropical Storm Teresa. The structure of Subtropical Storm Teresa was complex. There was a distinct low level center of circulation under the western side of the upper level low. A long band of showers and thunderstorms arced around the eastern and northern side of the larger circulation. Winds to tropical storm force extended out 70 miles (110 km) in the northeastern quadrant of Subtropical Storm Teresa. Winds in the other parts of Teresa were blowing at less than tropical storm force.

Subtropical Storm Teresa will move through an environment that is only marginally favorable for intensification during the next 24 hours. Teresa will move over water where the Sea Surface Temperatures are near 27˚C. However, the circulation around the upper level low will cause vertical wind shear over the low level center of Teresa. The wind shear will inhibit intensification. Subtropical Storm Teresa could get a little stronger during the next 24 hours. Teresa is forecast to be absorbed by a larger extratropical cyclone by the end of the weekend.

An upper level trough over the eastern U.S. will steer Subtropical Storm Teresa toward the northeast during the weekend. On its anticipated track, Teresa will move farther away from Bermuda. Subtropical Storm Teresa is forecast to be absorbed by an extratropical cyclone south of Nova Scotia on Sunday.

Elsewhere, Hurricane Same strengthened over the tropical Atlantic Ocean. At 5:00 p.m. EDT on Friday the center of Hurricane Sam was located at latitude 12.1°N and longitude 44.8°W which put it about 1290 miles (2075 km) east-southeast of the Northern Leeward Islands. Sam moving toward the west at 12 m.p.h. (19 km/h). The maximum sustained wind speed was 85 m.p.h. (135 km/h) and there were wind gusts to 100 m.p.h. (160 km/h). The minimum surface pressure was 986 mb. Hurricane Sam is forecast to strengthen to a major hurricane during the weekend.

Hurricane Larry Passes East of Bermuda

Hurricane Larry passed east of Bermuda on Thursday afternoon. At 2:00 p.m. EDT on Thursday the center of Hurricane Larry was located at latitude 32.9°N and longitude 62.0°W which put it about 170 miles (280 km) east-northeast of Bermuda. Larry was moving toward the north-northwest at 17 m.p.h. (28 km/h). The maximum sustained wind speed was 90 m.p.h. (145 km/h) and there were wind gusts to 105 m.p.h. (165 km/h). The minimum surface pressure was 966 mb.

A Tropical Storm Warning was in effect for Bermuda. A Hurricane Watch was in effect for the portion of the coast from St. Schotts to Pouch Cove, Newfoundland. Tropical Storm Watches were in effect for the portions of the coast from Lamaline to St, Schotts, Newfoundland and from Pouch Cove to Bonavista, Newfoundland.

The center of Hurricane Larry passed east of Bermuda on Friday afternoon. Bands on the western edge of Larry’s circulation brought rain and gusty winds to Bermuda. Hurricane Larry was still a well organized hurricane. A circular eye was present at the center of Larry. The eye was surrounded by a broken ring of thunderstorms and the strongest winds were occurring in that ring of storms. Bands of showers and thunderstorms were revolving around the center of Hurricane Larry. Storms near the center of circulation generated upper level divergence that pumped mass away to the north of the hurricane.

The circulation around Hurricane Larry was large. Winds to hurricane force extended out 90 miles (145 km) from the center of Larry. Winds to tropical storm force extended out 220 miles (350 km) from the center of circulation. The Hurricane Intensity Index (HII) for Hurricane Larry was 13.9. The Hurricane Size Index (HSI) was 25.4 and the Hurricane Wind Intensity Size Index (HWISI) was 39.3.

Hurricane Larry will move through an environment that should allow it to maintain its intensity during the next 24 hours. Larry will move over water where the Sea Surface Temperature is near 28˚C. It will move around the eastern side of an upper level trough over the eastern U.S. The trough will produce southwesterly winds that will blow toward the top of Larry’s circulation. Those winds will cause some vertical wind shear. However, the winds in the lower levels will also blow from the southwest. So, there will not be a lot of vertical wind shear. Hurricane Larry will move over cooler water when it moves north of the Gulf Stream on Friday. Larry will begin to make a transition to an extratropical cyclone when it gets north of the Gulf Stream.

The upper level trough over the eastern U.S. will steer Hurricane Larry toward the northeast. On its anticipated track Larry will move quickly away from Bermuda. Hurricane Larry could reach southeastern Newfoundland on Friday night. Larry will bring strong winds and locally heavy rain to parts of Newfoundland.

Elsewhere, former Tropical Storm Mindy dropped locally heavy rain over the southeast coast of the U.S. on Thursday morning. At 11:00 a.m. EDT on Thursday the center of Tropical Depression Mindy was located at latitude 31.5°N and longitude 80.7°W which put it about 45 miles (75 km) south-southeast of Savannah, Georgia. Mindy was moving toward the east-northeast at 21 m.p.h. (33 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.

Tropical Storm Mindy Forms near Florida Panhandle

Tropical Storm Mindy formed near the Florida Panhandle on Wednesday afternoon. At 5:00 p.m. EDT on Wednesday the center of Tropical Storm Mindy was located at latitude 29.0°N and longitude 86.3°W which put it about 90 miles (145 km) west-southwest of Apalachicola, Florida. Mindy was moving toward the northeast at 21 m.p.h. (33 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 1008 mb.

A Tropical Storm Warning was issued for the portion of the coast from Mexico Beach to the Steinhatchee River, Florida.

A surface low pressure system spun up quickly near the Florida Panhandle on Wednesday afternoon and the National Hurricane Center designated the system as Tropical Storm Mindy. More thunderstorms were forming near the center of Mindy. Storms near the center started to generate upper level divergence that pumped mass away to the northeast of the tropical storm. The removal of mass caused the surface pressure to decrease. NOAA buoy 42039 reported a sustained wind speed of 38 m.p.h. (61 km/h) and a wind gust of 51 m.p.h. (83 km/h) at 4:40 p.m. EDT. The buoy also reported a surface pressure of 1007.8 mb.

Tropical Storm Mindy could strengthen a little during the next few hours before it makes landfall on the coast of Northwest Florida. Mindy will move over water where the Sea Surface Temperature is near 30˚C. It will move under the eastern side of an upper level low over the western Gulf of Mexico. The upper low will produce southwesterly winds that will blow toward the top of Mindy’s circulation. Those winds will cause moderate vertical wind shear and the shear will limit potential intensification.

The upper level low will steer Tropical Storm Mindy quickly toward the northeast during the next 12 hours. On its anticipated track Tropical Storm Mindy will make landfall on the coast near Port St. Joe, Florida on Wednesday evening. Mindy will move more toward the east-northeast on Thursday when it reaches the westerly winds in the middle latitudes. Tropical Storm Mindy will produce gusty winds along the coast of Northwest Florida. Mindy could drop locally heavy rain over parts of northern Florida and southern Georgia. Flash Flood Watches are in effect for parts of northern Florida. Southerly winds on the eastern side of Tropical Storm Mindy will push waves toward the coast and some beach erosion is likely.

Elsewhere, Hurricane Larry moved closer to Bermuda on Wednesday afternoon. At 5:00 p.m. EDT on Wednesday the center of Hurricane Larry was located at latitude 28.9°N and longitude 59.2°W which put it about 405 miles (655 km) southeast of Bermuda. Larry was moving toward the northwest at 15 m.p.h. (24 km/h). The maximum sustained wind speed was 110 m.p.h. (175 km/h) and there were wind gusts to 130 m.p.h. (210 km/h). The minimum surface pressure was 966 mb. A Tropical Storm Warning was in effect for Bermuda.

Bermuda Issues Tropical Storm Watch for Potential Effects of Hurricane Larry

Bermuda issued a Tropical Storm Watch on Tuesday because of the potential effects of Hurricane Larry. At 2:00 p.m. EDT on Tuesday the center of Hurricane Larry was located at latitude 24.8°N and longitude 55.8°W which put it about 750 miles (1210 km) southeast of Bermuda. Larry was moving toward the northwest at 9 m.p.h. (13 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. (225 km/h). The minimum surface pressure was 967 mb.

A Tropical Storm Watch was issued for Bermuda.

Hurricane Larry remained a large, powerful hurricane even though it was slowly weakening. A large eye with a diameter of 60 miles (95 km) was at the center of Larry. The eye was surrounded by a broken ring of thunderstorms and the strongest winds were occurring in that ring of storms. Winds to hurricane force extended out 60 miles (95 km) from the center of Larry. Winds to tropical storm force extended out 165 miles (265 km) from the center of circulation. The Hurricane Intensity Index (HII) for Hurricane Larry was 20.6. The Hurricane Size Index (HSI) was 22.4 and the Hurricane Wind Intensity Size Index (HWISI) was 43.0.

Hurricane Larry will move through an environment that is slightly unfavorable for intensification during the next 36 hours. The large circulation around Larry seems to have mixed cooler water to the surface of the Atlantic Ocean. Since the circulation is so large, when the winds mix cooler water on the northern side of Hurricane Larry eventually the core of the hurricane will move over that cooler water. Larry will likely be unable to extract enough energy from the ocean to maintain its full circulation. Hurricane Larry will move through a region where the upper level winds are weak and there is little vertical wind shear. Since there will be little vertical wind shear, Hurricane Larry is likely to weaken gradually.

Hurricane Larry will move around the western end of a subtropical high pressure system over the Atlantic Ocean. The high will steer Larry toward the northwest during the next 36 hours. On its anticipated track the center of Hurricane Larry will pass east of Bermuda on Thursday. The western side of Larry could bring tropical storm force winds to Bermuda.

Hurricane Larry Spins Southeast of Bermuda

Hurricane Larry was spinning southeast of Bermuda on Sunday afternoon. At 5:00 p.m. EDT on Sunday the center of Hurricane Larry was located at latitude 20.5°N and longitude 50.6°W which put it about 1195 miles (1925 km) southeast of Bermuda. Larry was moving toward the northwest at 13 m.p.h. (20 km/h). The maximum sustained wind speed was 125 m.p.h. (200 km/h) and there were wind gusts to 145 m.p.h. (235 km/h). The minimum surface pressure was 955 mb.

The circulation around Hurricane Larry continued to be symmetrical. A large eye was present at the center of Larry. A ring of strong thunderstorms surrounded the eye and the strongest winds were occurring in that ring of storms. Bands of showers and thunderstorms were revolving around the core of Hurricane Larry. Storms near the core generated upper level divergence that pumped mass away from the hurricane. The circulation around Larry was nearly in balance with the environment around the hurricane. The upper level divergence was pumping out as much mass as was being brought into Hurricane Larry by convergence in the lower levels. So, the minimum surface pressure was remaining nearly constant.

The circulation around Hurricane Larry increased in size. Winds to hurricane force extended out 45 miles (75 km) from the center of Larry. Winds to tropical storm force extended out 160 miles (260 km) from the center of circulation. The Hurricane Intensity Index (HII) for Hurricane Larry was 23.6. The Hurricane Size Index (HSI) was 16.3 and the Hurricane Wind Intensity Size Index (HWISI) was 39.9.

Hurricane Larry is likely to remain nearly in balance with its environment during the next 36 hours. Larry will move over water where the Sea Surface Temperature is near 28˚C. It will move around the eastern side of an upper level trough north of Puerto Rico. The upper level trough will produce southwesterly winds that will blow toward the top of Larry’s circulation. Those winds will cause some vertical wind shear, but the shear will not have a significant impact on Larry’s circulation. Hurricane Larry is likely to maintain its intensity during the next 36 hours.

Hurricane Larry will move around the southwestern side of a subtropical high pressure system over the Atlantic Ocean during the next 36 hours. The high pressure system will steer Larry toward the northwest during that time period. On its anticipated track Hurricane Larry will move in the general direction of Bermuda.

Hurricane Larry Intensifies to a Major Hurricane

Hurricane Larry intensified to a major hurricane on Friday evening. At 11:00 p.m. EDT on Friday the center of Hurricane Larry was located at latitude 15.5°N and longitude 43.3°W which put it about 1230 miles (1980 km) east of the Leeward Islands. Larry was moving toward the west-northwest at 16 m.p.h. (26 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 965 mb.

Hurricane Larry continued to intensify on Friday evening and the wind speed increased to that of a major hurricane. An eye with a diameter of 17 miles (28 km) was at the center of Hurricane Larry. The eye was surround be 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 Larry. Storms near the core generated upper level divergence that pumped mass away from the hurricane in all directions. The removal of mass was causing the surface pressure to decrease.

The circulation around Hurricane Larry was becoming more symmetrical. Winds to hurricane force extended out 35 miles (55 km) from the center of Larry. Winds to tropical storm force extended out 150 miles (240 km) from the center of circulation. The Hurricane Intensity Index (HII) for Hurricane Larry was 20.6. The Hurricane Size Index (HSI) was 12.5 and the Hurricane Wind Intensity Size Index (HWISI) was 33.1.

Hurricane Larry will move through an environment favorable for intensification during the next 36 hours. Larry will move over water where the Sea Surface Temperature is 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 Larry will continue to intensify during the next 36 hours. Larry is likely to strengthen to Category 4 on the Saffir-Simpson Scale during the weekend.

Hurricane Larry will move around the southern side of a subtropical high pressure system over the Atlantic Ocean during the next 36 hours. The high will steer Larry toward the west-northwest during that time period. On its anticipated track Hurricane Larry will move in the general direction of Bermuda.

Hurricane Larry Strengthens to Cat. 2

Hurricane Larry strengthened to Category 2 over the Atlantic Ocean on Friday afternoon. At 5:00 p.m. EDT on Friday the center of Hurricane Larry was located at latitude 15.0°N and longitude 42.0°W which put it about 1320 miles (2125 km) east of the Leeward Islands. Larry was moving toward the west-northwest at 16 m.p.h. (26 km/h). The maximum sustained wind speed was 100 m.p.h. (160 km/h) and there were wind gusts to 120 m.p.h. (195 km/h). The minimum surface pressure was 978 mb.

Hurricane Larry intensified to Category 2 on Friday afternoon. A small circular eye was present at the center of Larry. The eye was surround be 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 Larry. 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 Larry. Winds to tropical storm force extended out 150 miles (240 km) from the center of circulation.

Hurricane Larry will move through an environment favorable for intensification during the next 36 hours. Larry will move over water where the Sea Surface Temperature is 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 Larry will intensify during the next 36 hours. Larry is likely to strengthen to a major hurricane during the weekend.

Hurricane Larry will move around the southern side of a subtropical high pressure system over the Atlantic Ocean during the next 36 hours. The high will steer Larry toward the west-northwest during that time period. On it anticipated track Hurricane Larry will move in the general direction of Bermuda.