Meteorological history | |
---|---|
Formed | September 3,2006 |
Extratropical | September 13,2006 |
Dissipated | September 19,2006 |
Category 1 hurricane | |
1-minute sustained (SSHWS/NWS) | |
Highest winds | 90 mph (150 km/h) |
Lowest pressure | 974 mbar (hPa);28.76 inHg |
Overall effects | |
Fatalities | None |
Damage | $200,000 (2006 USD) |
Areas affected | Bermuda,Newfoundland,East Coast of the United States,Atlantic Canada,Iceland,Greenland |
IBTrACS | |
Part of the 2006 Atlantic hurricane season |
Hurricane Florence was the first North Atlantic hurricane to produce hurricane-force winds on the island of Bermuda since Hurricane Fabian in September 2003. [1] The seventh tropical storm and second hurricane of the 2006 Atlantic hurricane season,Florence developed from a tropical wave in the eastern Atlantic Ocean on September 3. Due to unfavorable conditions,the system failed to organize initially,and as a result,the storm grew to an unusually large size. After several days,Florence encountered an area of lesser wind shear and intensified into a hurricane on September 10. It passed just west of Bermuda while recurving northeastward,and on September 13 it transitioned into an extratropical cyclone.
Florence produced wind gusts of up to 115 mph (185 km/h) on Bermuda,which caused several power outages and minor damage. Florence then brought heavy rains across Newfoundland as an extratropical storm,destroying one house and causing minor damage to several others. There were no fatalities as a result of the hurricane.
A tropical wave moved off the coast of Africa on August 29. It tracked slowly westward, and first showed signs of development two days later. On August 31, a second tropical wave exited the coast of Africa at a faster speed than its predecessor. The two waves interacted, and by September 2 combined to form a large area of disturbed weather across the eastern Atlantic Ocean. [2] Convection increased within the system, [3] and it developed a concentrated area of convection in conjunction with a well-defined low pressure area. [4] By late on September 3, the system maintained a broad closed circulation and enough convective organization to be classified Tropical Depression Six while located about midway between the Lesser Antilles and Africa. [5]
Upon becoming a tropical cyclone, the depression maintained multiple cloud swirls within a common center. [5] Banding features increased, though southwesterly wind shear and the lack of a well-defined circulation prevented initial strengthening. [6] Dry air encountered the depression, and as such it developed very slowly; forecasters maintained considerable difficulty in determining a center of circulation. It continued its motion to the west-northwest while tracking around the southern periphery of a deep-layer subtropical ridge to its north. [7] Though convection remained focused near the outer periphery of the system, [8] the overall organized continued to steadily increase, and it is estimated the depression intensified into Tropical Storm Florence on September 5 while located about 1,120 miles (1,800 km) east-northeast of Anguilla. [2]
After attaining tropical storm status, the maximum sustained winds fluctuated for three days between 40 and 50 mph (64 and 80 km/h). [2] This was due to the large size of Florence; the overall wind field reached a diameter of 460 miles (740 km), and the radius of maximum winds reached about 110 miles (180 km). [9] By September 6, a well-defined cloud swirl became evident, with thin rainbands developing in the southeast and northwest quadrants. [10] As a result, hurricane forecasters anticipated Florence would develop significantly and attain major hurricane status. Though convection gradually migrated closer to the center of the storm, forecasters could not detect a well-defined center of circulation by late on September 6. [11] On September 7, convection developed over and to the west of the center for the first time in its duration. However, Florence failed to intensify further, as its wind field had increased to more than 1,035 miles (1,666 km) in diameter. [12] This led to difficulties in forecasting, as its environment favored further strengthening; the storm tracked through an area of 84° F (29° C) water temperatures and light shear, and the system maintained a large low-level cyclonic envelop with abundant convection. By early on September 8, the storm consisted of an elongated, shapeless cloud pattern atypical of a tropical cyclone. [13] Later that day, as an anticyclone developed over Florence, the storm began to consolidate around a vorticity center on the western side of the large cyclonic envelope. It began to strengthen more steadily as it turned to the northwest. [2] Early on September 10, an eye began developing within a round central dense overcast over the center, [14] and shortly thereafter Florence attained hurricane status while located about 390 miles (630 km) south of Bermuda. [2]
Hurricane Florence turned to the north and north-northeast through a break in the subtropical ridge. Though its eyewall was open on the north side, favorable conditions led forecasters to predict Florence passing near Bermuda as a strong Category 2 hurricane. [15] The inner core of convection became ragged-looking on satellite imagery, and based on reports from Hurricane Hunters it is estimated the hurricane attained peak winds of 90 mph (140 km/h) late on September 10. [16] Subsequent to further erosion of the eyewall, the hurricane weakened, and on September 11 passed about 60 miles (97 km) west of Bermuda with winds of 85 mph (137 km/h). The overall cloud pattern became slightly better organized, and Florence briefly re-strengthened before encountering increased upper-level winds and cooler waters. [2] Dry air wrapping around the southern periphery of the cyclone eroded most of the deep convection by early on September 12. The cloud shield became asymmetrically displaced to the north of the center, and frontal-like features began to form. [17] It continued to lose tropical characteristics, and on September 13 Florence transitioned into an extratropical cyclone about 485 miles (781 km) south-southwest of Cape Race, Newfoundland. Initially maintaining hurricane-force winds, the extratropical remnant passed near Cape Race before turning to the east-northeast, and on September 14 the winds weakened to gale force. The storm executed a broad cyclonic half-loop to the southwest of Iceland over the subsequent days, and after turning to the west the extratropical remnants of Florence were absorbed to the east of Greenland by a developing extratropical cyclone to its south. [2]
The government of Bermuda issued a hurricane watch for the island on September 8, [18] which was followed by a tropical storm warning on September 9. [19] These were replaced by a hurricane warning on September 10, coinciding with the storm's strengthening to hurricane intensity. [20] The government urged the potentially impacted citizens to take preparations for the storm, many of whom bought supplies at local hardware stores. [21] Residents installed storm shutters, while boat owners moved their yachts to safer locations. [22] An emergency shelter was prepared on the island. Prior to the arrival of the storm, officials canceled bus and ferry service, and also closed all schools and government offices on the day of impact. The Bermuda International Airport was also closed. [23]
Hurricane Florence produced strong swells and dangerous surf conditions along the northern Lesser Antilles, Virgin Islands, Puerto Rico, Hispaniola, and Bermuda. [24] Later in its duration, the tight pressure gradient between Florence and a high-pressure system over southeastern Canada produced strong winds and rough waves along the East Coast of the United States. [25] The hurricane also caused strong swells and rough ocean conditions, including rip currents, in the Bahamas and Atlantic Canada. [26] In South Carolina, high waves produced severe beach erosion on several beaches. [27]
Passing a short distance west of Bermuda, Hurricane Florence produced strong winds on the island; sustained winds peaked at 82 mph (132 km/h) on St. David's Island at an elevation of 157 feet (48 m), while gusts reached 115 mph (185 km/h) at the Maritime Operations Centre in St. George's Parish at an elevation of 256 feet (78 m). [2] The winds knocked down trees and power lines, leaving over 25,000 homes and businesses without electricity during the peak of the storm. [28] The powerful winds damaged ten houses, including destroying the roofs of three, and blew out windows across the island. A few people were injured by flying glass, though none required hospital care. [29] Rainfall on the island reached 1.32 inches (34 mm) at the Bermuda International Airport. [2] A possible tornado in Southampton Parish downed trees and caused light property damage. At the Bermuda Zoo and Aquarium, two flamingos died due to falling branches. During the peak of the storm, police officials advised citizens to remain indoors away from harm, though there were several reports of looting throughout the territory. [30] On the island, the storm's damage totaled over $200,000 (2006 USD). [31] Shortly after the storm passed through, BELCO began restoring power, and by six hours after the peak of the storm power had been restored to 7,000 homes and businesses. [30] By the day after the storm, about 3,000 remained without electricity on the island. [32] The storm damaged the causeway between St. David's Island and Hamilton Parish, temporarily limiting traffic to one lane in each direction. [33]
As an extratropical storm over Newfoundland, Florence produced powerful winds peaking at 101 mph (163 km/h) and moderate amounts of rainfall of up to 2.6 inches (66 mm). [34] Flooding and power outages were reported, although they were isolated. The hurricane caused flight interruptions at St. John's International Airport and also to the Trans Canada ferry between Newfoundland and Cape Breton Island in eastern Nova Scotia. [35] Strong winds destroyed a house in the small Newfoundland village of Francois. Residents in Francois agreed to rebuild the wrecked home while the family temporarily resided in a summer home of another family. [36] The winds also caused damage to shingles and sides of homes, while the strong waves damaged roads and boats along the Burin Peninsula. [34]
The 2003 Atlantic hurricane season was a very active season with tropical cyclogenesis occurring before and after the official bounds of the season—the first such occurrence since the 1970 season. The season produced 21 tropical cyclones, of which 16 developed into named storms; seven of those attained hurricane status, of which three reached major hurricane status. The strongest hurricane of the season was Hurricane Isabel, which reached Category 5 status on the Saffir–Simpson hurricane scale northeast of the Lesser Antilles; Isabel later struck North Carolina as a Category 2 hurricane, causing $3.6 billion in damage and a total of 51 deaths across the Mid-Atlantic region of the United States.
The 2000 Atlantic hurricane season was a fairly active hurricane season, but featured the latest first named storm in a hurricane season since 1992. The hurricane season officially began on June 1, and ended on November 30. It was slightly above average due to a La Niña weather pattern although most of the storms were weak. It was also the only season to have two of the storms affect Ireland. The first cyclone, Tropical Depression One, developed in the southern Gulf of Mexico on June 7 and dissipated after an uneventful duration. However, it would be almost two months before the first named storm, Alberto, formed near Cape Verde; Alberto also dissipated with no effects on land. Several other tropical cyclones—Tropical Depression Two, Tropical Depression Four, Chris, Ernesto, Nadine, and an unnamed subtropical storm—did not impact land. Five additional storms—Tropical Depression Nine, Florence, Isaac, Joyce, and Leslie—minimally affected land areas.
The 1967 Atlantic hurricane season was an active Atlantic hurricane season overall, producing 13 nameable storms, of which 6 strengthened into hurricanes. The season officially began on June 1, 1967, and lasted until November 30, 1967. These dates, adopted by convention, historically describe the period in each year when most tropical cyclogenesis occurs in the Atlantic Ocean. The season's first system, Tropical Depression One, formed on June 10, and the last, Tropical Storm Heidi, lost tropical characteristics on November 2.
The 1991 Atlantic hurricane season was the first season since 1984 in which no hurricanes developed from tropical waves, which are the source for most North Atlantic tropical cyclones. The hurricane season officially began on June 1, and ended on November 30. It was the least active in four years due to higher than usual wind shear across the Atlantic Ocean. The first storm, Ana, developed on July 2 off the southeast United States and dissipated without causing significant effects. Two other tropical storms in the season – Danny and Erika – did not significantly affect land. Danny dissipated east of the Lesser Antilles, and Erika passed through the Azores before becoming extratropical. In addition, there were four non-developing tropical depressions. The second depression of the season struck Mexico with significant accompanying rains.
The 2006 Atlantic hurricane season was the least active in the basin since 1997, with nine named storms as well as an additional unnamed tropical storm identified by the National Hurricane Center. 2006 was the first season since 2001 in which no hurricanes made landfall in the United States, and was the first since 1994 in which no tropical cyclones formed during October. Following the intense activity of 2003, 2004, and 2005, forecasters predicted that the 2006 season would be only slightly less active. Instead, it turned out to be a below average season, as activity was slowed by a rapidly forming moderate El Niño event, the presence of the Saharan Air Layer over the tropical Atlantic, and the steady presence of a robust secondary high-pressure area to the Azores High centered on Bermuda. There were no tropical cyclones after October 2.
Hurricane Maria was an Atlantic hurricane which formed in September 2005 during the annual hurricane season. Maria was the thirteenth named storm, sixth hurricane, and fourth major hurricane of the record-breaking season. Maria formed in the central Atlantic on September 1 and tracked to the northwest, strengthening as it moved over warm waters. The storm reached its peak intensity on September 5 east of Bermuda and gradually weakened before becoming extratropical on September 10. Maria did not affect any land as a tropical cyclone, but Maria brought tropical storm-force winds to Iceland as an extratropical cyclone and produced heavy rain and three fatalities in Norway.
Hurricane Irene was a long-lived Cape Verde hurricane during the 2005 Atlantic hurricane season. The storm formed near Cape Verde on August 4 and crossed the Atlantic, turning northward around Bermuda before being absorbed by an extratropical cyclone while situated southeast of Newfoundland. Irene proved to be a difficult storm to forecast due to oscillations in strength. After almost dissipating on August 10, Irene peaked as a Category 2 hurricane on August 16. Irene persisted for 14 days as a tropical system, the longest duration of any storm of the 2005 season. It was the ninth named storm and fourth hurricane of the record-breaking season.
Hurricane Erika was the strongest and longest-lasting tropical cyclone in the 1997 Atlantic hurricane season. It developed from a tropical wave on September 3 and moved west-northwestward across the tropical Atlantic Ocean, steadily intensifying until it attained hurricane status on September 4, becoming the fifth named storm and third hurricane of the season. Erika passed a short distance to the north of the Lesser Antilles, and later turned to the north in response to an approaching trough. The hurricane quickly strengthened to become the only major hurricane of the season, reaching maximum sustained winds of 125 mph (201 km/h) on September 8; after maintaining its peak strength for 24 hours, Erika began to weaken as it passed over cooler waters. It turned to the east, weakened to a tropical storm, and became extratropical after passing near the Azores archipelago.
Hurricane Gabrielle was a North Atlantic hurricane that caused flooding in both Florida and Newfoundland in September 2001. It developed in the Gulf of Mexico on the same day as the September 11 attacks; after the attacks, flights were canceled nationwide for two days, and when Gabrielle struck Florida on September 14, it caused a day of additional cancellations. The storm moved ashore with winds of 70 mph (110 km/h) near Venice, a city located south of the Tampa Bay area. The combination of the winds and heavy rainfall, which peaked at 15.1 in (380 mm) in Parrish, left 570,000 customers without power along the west coast and 126,000 customers without power on the east coast. The storm caused about $230 million (2001 USD) in damage in Florida. In the Gulf of Mexico, high waves contributed to two deaths, one of which was indirect; there was also a death due to flooding in Winter Haven.
Hurricane Gert was the fourth of five major hurricanes in the moderately active 1999 Atlantic hurricane season. A Cape Verde hurricane, Gert formed on September 11 off the coast of Africa before heading west-northwest. It reached a peak wind speed of 150 mph (240 km/h) by September 15 over the open central Atlantic east-northeast of the Leeward Islands. It gradually curved to the northwest and later to the north, due to a weakness in the subtropical ridge created by Hurricane Floyd. Hurricane Gert passed east of Bermuda on September 21 and began a steady weakening trend at that time. It turned to the northeast, and on September 23, Gert transitioned into an extratropical cyclone to the southeast of Atlantic Canada before being absorbed by a larger storm.
Hurricane Gordon was the first tropical cyclone since 1992 to affect the Azores while retaining tropical characteristics. The eighth tropical storm, third hurricane, and first major hurricane of the 2006 Atlantic hurricane season, Gordon formed on September 10 in the tropical Atlantic Ocean. It gradually matured into a hurricane as it tracked northward, reaching its peak intensity with winds of 195 km/h (121 mph) early on September 14 while located about 925 km (575 mi) southeast of Bermuda. After becoming nearly stationary, Gordon weakened to minimal hurricane status, although it re-intensified after accelerating to the east. It weakened again after moving over cooler waters, and passed through the Azores on September 20. Shortly thereafter, it became an extratropical cyclone and subsequently affected Spain, Ireland, and the United Kingdom.
Tropical Storm Dean was a strong tropical storm that affected at least twelve islands along its path from the tropical Atlantic Ocean to east of Atlantic Canada in August 2001. Dean developed from a tropical wave on August 22 over the Lesser Antilles, and was initially predicted to intensify further to reach hurricane status. However, strong wind shear quickly weakened Dean to cause it to dissipate on August 23. The remnants turned northward, and redeveloped on August 26 to the north of Bermuda. Located over warm waters and in an area of favorable conditions, Dean steadily strengthened while moving to the northeast, and peaked just below hurricane status on August 27 about 465 miles (748 km) southwest of Newfoundland. The storm subsequently weakened over cooler waters, and became extratropical on August 28.
Hurricane Erin was the longest-lived hurricane in the 2001 Atlantic hurricane season. The sixth tropical depression, fifth tropical storm, and first hurricane of the season, Erin developed from a tropical wave on September 1. After strengthening to a 60 mph (97 km/h) tropical storm as it moved to the west-northwest, wind shear weakened Erin and caused it to degenerate into a remnant low on September 5. The remnants re-organized into a tropical depression the next day, and Erin strengthened into a hurricane on September 9 while moving northwestward. This was the latest date for the first hurricane of the season since Hurricane Diana on September 10, 1984. Erin quickly intensified and reached peak winds of 120 mph (190 km/h) later on September 9. At its closest approach, Erin passed 105 miles (169 km) east-northeast of Bermuda near peak intensity, and subsequently weakened as it turned to the east. A trough turned Erin to the northeast, and after passing just east of Cape Race, Newfoundland it became extratropical on September 15. The extratropical remnant continued northeastward and was absorbed into another extratropical storm near Greenland on September 17.
Tropical Storm Chantal was a short-lived tropical storm that affected Bermuda in its formative stages and caused flooding and gusty winds in Newfoundland while extratropical. The third named storm of the 2007 Atlantic hurricane season, Chantal developed on July 31 from non-tropical origins between Bermuda and Cape Cod, and with favorable conditions, the storm rapidly attained peak winds of 50 mph (80 km/h). The storm accelerated northeastward over an area of progressively colder water temperatures, and after a decrease in convection the National Hurricane Center ceased issuing advisories as Chantal began undergoing extratropical transition early on August 1. Shortly thereafter, the extratropical remnant crossed over southeastern Newfoundland before tracking into the open waters of the north Atlantic Ocean. Prior to forming, the storm dropped moderate rainfall on Bermuda. Subsequent to becoming extratropical, the remnants of Chantal produced gusty winds and heavy precipitation across the Avalon Peninsula of Newfoundland, causing flooding and wind damage; insured damage totaled $25 million.
Hurricane Olga was the fifteenth named storm and ninth hurricane of the 2001 Atlantic hurricane season. It was notable as it was the largest tropical cyclone by diameter of gale-force winds on record in the Atlantic at the time. Hurricane Olga formed as a subtropical cyclone on November 24. After acquiring tropical characteristics later that day, Olga meandered westward, and eventually reached hurricane status on November 26. Olga peaked as a 90 mph (140 km/h) Category 1 hurricane before the storm turned southwestward and weakening back into a tropical storm. On November 30 it deteriorated further to a tropical depression, although it re-intensified two days later to tropical storm intensity. Olga then dissipated as a tropical cyclone on December 4 east of the Bahamas. Its damaging effects were limited to ships at sea. The cyclone's remnants produced heavy rainfall across the Bahamas and Florida. It was a relatively rare storm to exist in December, which is outside of the normal Atlantic hurricane season.
Hurricane Florence attained Category 1 intensity on three separate occasions in mid-September 2000. The tenth tropical cyclone, sixth named storm, and third hurricane of the 2000 Atlantic hurricane season, Florence developed on September 10 from a cold front to the southwest of Bermuda. Initially a subtropical cyclone, it quickly organized, attaining hurricane status twice in a two-day period before weakening while remaining nearly stationary. Florence accelerated northeastward, reaching peak winds as a hurricane after passing near Bermuda. On September 17, the storm was absorbed by a larger extratropical cyclone. Hurricane Florence threatened Bermuda during its third time at hurricane intensity, bringing tropical storm force winds to the island but causing no reported damage. However, three deaths in North Carolina were blamed on rip currents triggered by the hurricane on September 12.
Hurricane Florence was a strong, late season hurricane that remained out over the open waters of the Atlantic Ocean for nearly a week, before being absorbed into a large extratropical cyclone. With peak winds of 110 mph (180 km/h) and a minimum pressure of 972 mbar, Florence was the strongest storm of the 1994 Atlantic hurricane season. Florence developed out of an area of low pressure associated with a stalled frontal system located 1,150 mi (1,850 km) east-southeast of Bermuda in late October. The system gradually became better organized and was classified a subtropical depression on November 2. The storm intensified into a subtropical storm shortly thereafter before weakening into a tropical depression on the next day.
Hurricane Humberto was a moderately powerful hurricane that briefly affected Bermuda in September 2001. It was the eighth named storm of the season, as well as the fourth hurricane. It formed on September 21 between Puerto Rico and Bermuda, partially related to previous Hurricane Gabrielle. Humberto passed about 140 miles (230 km) west of Bermuda, which spared the island with its strongest winds. After weakening and believed to be on the verge of dissipating, Humberto unexpectedly restrengthened to the southeast of Atlantic Canada. The intensification was short-lived and the storm dissipated on September 27. There were a series of significant observational flights into the hurricane that produced a wealth of data on the structure of hurricanes.
Hurricane Paulette was a strong and long-lived Category 2 Atlantic hurricane which became the first to make landfall in Bermuda since Hurricane Gonzalo in 2014, and was the longest-lasting tropical cyclone of 2020 globally. The sixteenth named storm and sixth hurricane of the record-breaking 2020 Atlantic hurricane season, Paulette developed from a tropical wave that left the coast of Africa on September 2. The wave eventually consolidated into a tropical depression on September 7. Paulette fluctuated in intensity over the next few days, due to strong wind shear, initially peaking as a strong tropical storm on September 8. It eventually strengthened into a hurricane early on September 13 as shear decreased. On September 14, Paulette made landfall in northeastern Bermuda as a Category 2 hurricane, while making a gradual turn to the northeast. The cyclone further strengthened as it moved away from the island, reaching its peak intensity with 1-minute sustained winds of 105 mph (169 km/h) and a minimum central atmospheric pressure of 965 mbar (28.5 inHg) on September 14. On the evening of September 15, Paulette began to weaken and undergo extratropical transition, which it completed on September 16. The hurricane's extratropical remnants persisted and moved southward then eastward, and eventually, Paulette regenerated into a tropical storm early on September 20 south of the Azores– which resulted in the U.S National Weather Service coining the phrase "zombie storm" to describe its unusual regeneration. Paulette's second phase proved short-lived, however, as the storm quickly weakened and became post-tropical again two days later. The remnant persisted for several days before dissipating south of the Azores on September 28. In total, Paulette was a tropical cyclone for 11.25 days, and the system had an overall lifespan of 21 days.
Hurricane Larry was a strong and long-lived Cape Verde hurricane that became the first hurricane to make landfall in Newfoundland since Igor in 2010. The twelfth named storm, fifth hurricane, and third major hurricane of the 2021 Atlantic hurricane season, Larry originated from a tropical wave that emerged off the coast of Africa and organized into a tropical depression on August 31. The next day, the depression developed into a tropical storm, receiving the name Larry. The storm moved quickly across the far eastern tropical Atlantic, where it strengthened into a Category 1 hurricane the morning of September 2. Then, after undergoing a period of rapid intensification, Larry became a major Category 3 hurricane early on September 4. After churning for several days as a strong hurricane in the open ocean, Larry made landfall in Newfoundland on September 11, as a Category 1 hurricane. Later that day, Larry became an extratropical cyclone. Finally, on September 13, Larry was absorbed by a larger extratropical cyclone near Greenland.