This article's factual accuracy may be compromised due to out-of-date information.(October 2022) |
A South American hurricane is a tropical cyclone that affects the continent of South America or its countries. The continent is rarely affected by tropical cyclones, though most storms to hit the area are formed in the North Atlantic Ocean. Typically, strong upper-level winds and its proximity to the equator prevents North Atlantic impacts. [1] Cyclone Yaku is the only known tropical cyclone to have ever affected the Pacific side of South America on record, albeit its status as a tropical cyclone is unofficial.[ citation needed ] Although conditions are typically too hostile for many storms to hit the area from the South Atlantic Ocean, there have been a few tropical cyclones to affect land. Based on climatology, northern Venezuela and Colombia have a 1 to 5% chance of a hurricane strike in any given year, while all locations south of 10° N have less than a 1% chance of a direct hit. [2]
44 tropical cyclones have affected South America in most months of the year.
|
Data from South American tropical cyclones is sparse and incomplete, though most tropical cyclones that struck the continent caused multiple deaths. Bret, Julia, Joan, and Cesar all caused their deaths through rainfall or flash flooding.
Name | Year | Number of deaths |
---|---|---|
Bret | 1993 | 174 |
Joan | 1988 | 36 |
Cesar | 1996 | 17 |
Ubá | 2021 | 15 |
Unnamed | 2009 | 14 |
Matthew | 2010 | 8 |
Yaku | 2023 | 8 |
Iota | 2020 | 7 |
Gilbert | 1988 | 5 |
Catarina | 2004 | 3 |
Ivan | 2004 | 3 |
Kurumí | 2020 | 3 |
Lenny | 1999 | 2 |
Bret | 2017 | 2 |
Yakecan | 2022 | 2 |
Hattie | 1961 | 1 |
Matthew | 2016 | 1 |
"Trinidad" | 1933 | "Several" |
Alma | 1974 | 0 (47 indirect) |
Julia | 2022 | 0 (54 indirect) |
In the event an Atlantic hurricane threatens the northern coast of South America, the National Hurricane Center defines nine locations as tropical cyclone warning breakpoints. The westernmost is the border between Panama and Colombia, and the easternmost is Georgetown, Guyana, located at 6.82° N. In the eastern Pacific Ocean, tropical cyclone warning breakpoints extend eastward to the border of Panama and Colombia at 7.23° N. [72] No Atlantic hurricane has existed south of 6.82° N, [73] and no Pacific hurricane has existed east of 80° W, [74] though in the event a tropical cyclone threatens a region of South America without warnings, additional warning sites can be selected. In addition to warnings on the mainland of South America, the National Hurricane Center defines the entire island of San Andres as a tropical cyclone warning breakpoint. [72]
Intense Hurricane Flora in 1963 prompted officials to declare gale warnings for two islands off the north coast of Venezuela. [75] In 1974, the passage of Tropical Storm Alma warranted the issuance of Gale Warnings for the Paria and Paraguaná Peninsulas. [19] Hurricane Joan in 1988, Tropical Storm Bret in 1993, Hurricane Cesar in 1996, and Hurricane Felix in 2007 resulted in tropical storm and hurricane watches and warnings for several locations in South America. [76] [77] [78] [79] The threat of Hurricane Ivan prompted a hurricane watch and a tropical storm warning for the northern coast of Venezuela. [80]
Tropical Storm Allison was a tropical storm that devastated southeast Texas in June of the 2001 Atlantic hurricane season. An arguable example of the "brown ocean effect", Allison lasted unusually long for a June storm, remaining tropical or subtropical for 16 days, most of which was when the storm was over land dumping torrential rainfall. The storm developed from a tropical wave in the northern Gulf of Mexico on June 4, 2001, and struck the upper Texas coast shortly thereafter. It drifted northward through the state, turned back to the south, and re-entered the Gulf of Mexico. The storm continued to the east-northeast, made landfall on Louisiana, then moved across the southeast United States and Mid-Atlantic. Allison was the first storm since Tropical Storm Frances in 1998 to strike the northern Texas coastline.
South Atlantic tropical cyclones are unusual weather events that occur in the Southern Hemisphere. Strong wind shear, which disrupts the formation of cyclones, as well as a lack of weather disturbances favorable for development in the South Atlantic Ocean, make any strong tropical system extremely rare, and Hurricane Catarina in 2004 is the only recorded South Atlantic hurricane in history. Storms can develop year-round in the South Atlantic, with activity peaking during the months from November through May. Since 2011, the Brazilian Navy Hydrographic Center has assigned names to tropical and subtropical systems in the western side of the basin, near the eastern coast of Brazil, when they have sustained wind speeds of at least 65 km/h (40 mph), the generally accepted minimum sustained wind speed for a disturbance to be designated as a tropical storm in the North Atlantic basin. Below is a list of notable South Atlantic tropical and subtropical cyclones.
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 1993 Atlantic hurricane season was a below average Atlantic hurricane season that produced ten tropical cyclones, eight tropical storms, four hurricanes, and one major hurricane. It officially started on June 1 and ended on November 30, dates which conventionally delimit the period during which most tropical cyclones form in the Atlantic Ocean. The first tropical cyclone, Tropical Depression One, developed on May 31, while the final storm, Tropical Depression Ten, dissipated on September 30, well before the average dissipation date of a season's last tropical cyclone; this represented the earliest end to the hurricane season in ten years.
The 1958 Atlantic hurricane season included every tropical cyclone either affecting or threatening land. There were ten named storms as well as one pre-season tropical storm. Seven of the storms became hurricanes, including five that were major hurricanes, or the equivalent of a Category 3 on the Saffir-Simpson scale. The strongest storm was Hurricane Helene, which became a strong Category 4 hurricane with 150 mph (240 km/h) winds and a barometric pressure of 930 millibars (27 inHg) while just offshore the southeastern United States.
The 1974 Atlantic hurricane season was a destructive and deadly hurricane season. In terms of overall activity, it was near average, with eleven named storms forming, of which four became hurricanes. Two of those four became major hurricanes, which are Category 3 or higher systems on the Saffir–Simpson scale. The season officially began on June 1 and lasted until November 30. These dates conventionally delimit the period of each year when most tropical cyclones form in the Atlantic Ocean.
The 1981 Atlantic hurricane season featured direct or indirect impacts from nearly all of its 12 tropical or subtropical storms. Overall, the season was fairly active, with 22 tropical depressions, 12 of which became named storms. 7 of those reached hurricane status and a further 3 intensified into major hurricanes. The season officially began on June 1, 1981, and lasted until November 30, 1981. These dates conventionally delimit the period of each year when most tropical cyclones form in the Atlantic basin. However, tropical cyclogenesis can occur before these dates, as demonstrated with the development of two tropical depressions in April and Tropical Storm Arlene in May. At least one tropical cyclone formed in each month between April and November, with the final system, Subtropical Storm Three, becoming extratropical on November 17, 1981.
The 1933 Atlantic hurricane season is the most active Atlantic hurricane season on record in terms of accumulated Cyclone Energy (ACE), with a total of 259. It also set a record for nameable tropical storms in a single season, 20, which stood until 2005, when there were 28 storms. The season ran for six months of 1933, with tropical cyclone development occurring as early as May and as late as November. A system was active for all but 13 days from June 28 to October 7.
Tropical Storm Bret was the deadliest natural disaster in Venezuela since the 1967 Caracas earthquake. The third tropical cyclone of the 1993 Atlantic hurricane season, Bret formed on August 4 from a westward-moving, African tropical wave. Bret would later peak as a 60 mph (97 km/h) tropical storm as it neared Trinidad. It took an extremely southerly course through the Caribbean, passing over the coasts of Venezuela and Colombia. High terrain in the northern parts of those countries severely disrupted the circulation of the storm, and Bret had weakened to a tropical depression before emerging over the extreme southwestern Caribbean Sea. There, it restrengthened to a tropical storm and made landfall in Nicaragua on August 10, dissipating soon after. Bret's remnants reached the Pacific Ocean, where they would later regenerate into Hurricane Greg.
Hurricane Charley was the second hurricane to threaten the East Coast of the United States within a year's timeframe, after Hurricane Gloria of 1985. The third tropical storm and second hurricane of the season, Charley formed as a subtropical low on August 13 along the Florida panhandle. After moving off the coast of South Carolina, the system transitioned into a tropical cyclone and intensified into a tropical storm on August 15. Charley later attained hurricane status before moving across eastern North Carolina. It gradually weakened over the north Atlantic Ocean before transitioning into an extratropical cyclone on August 20. Charley's remnants remained identifiable for over a week, until after crossing Ireland and Great Britain they dissipated on August 30.
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 Kyle was the fifth-longest-lived Atlantic tropical or subtropical cyclone on record. The eleventh named storm and third hurricane of the 2002 Atlantic hurricane season, Kyle developed as a subtropical cyclone on September 20 to the east-southeast of Bermuda. Looping westward, it transitioned into a tropical cyclone and became a hurricane on September 25. For the next two weeks, Kyle tracked generally westward, oscillating in strength several times because of fluctuations in environmental conditions. On October 11, the cyclone turned northeastward and made landfalls near Charleston, South Carolina, and Long Beach, North Carolina, at tropical storm status. After lasting as a cyclone for 22 days, Kyle dissipated on October 12 as it was absorbed by an approaching cold front.
The 1982 Florida subtropical storm, officially known as Subtropical Storm One, was the only subtropical cyclone of the exceptionally inactive 1982 Atlantic hurricane season. The storm originated from two different systems around the Gulf of Mexico and Caribbean on June 16. The systems merged into trough while a circulation began to form off the coast of Florida on June 18. The depression made landfall in Florida and strengthened into a storm over land. The storm entered the Atlantic Ocean and headed to the northeast, becoming extratropical on June 20 near Newfoundland. The storm was the only system of 1982 to affect the eastern half of the United States, and it caused three fatalities and caused $10 million in damage.
Hurricane Irene–Olivia was the first actively tracked tropical cyclone to move into the eastern Pacific Ocean from the Atlantic basin. It originated as a tropical depression on September 11, 1971, in the tropical Atlantic. The cyclone tracked nearly due westward at a low latitude, passing through the southern Windward Islands and later over northern South America. In the southwest Caribbean Sea, it intensified to a tropical storm and later a hurricane. Irene made landfall on southeastern Nicaragua on September 19, and maintained its circulation as it crossed the low-lying terrain of the country. Restrengthening after reaching the Pacific, Irene was renamed Hurricane Olivia, which ultimately attained peak winds of 115 mph (185 km/h). Olivia weakened significantly before moving ashore on the Baja California Peninsula on September 30; the next day it dissipated.
Tropical Storm Bret was a strong tropical storm that made a rare landfall on the Delmarva Peninsula in June 1981. The sixth tropical cyclone, third designated tropical depression, and second named storm of the season, Bret developed as a subtropical storm from a large area of frontal clouds near Bermuda on June 29. Moving westward, the subtropical storm intensified while producing deep convection, and was consequently reclassified as a tropical storm early on June 30. Around that time, Bret peaked with sustained winds of 70 mph (110 km/h). The storm then began weakening and struck near Oyster, Virginia as a minimal tropical storm early on July 1. Upon moving inland, Bret weakened to a tropical depression and subsequently accelerated prior to dissipating over northern Virginia that same day.
Tropical Storm Alma, the first named storm to develop in the 1974 Atlantic hurricane season, was a short lived tropical cyclone that made a rare Venezuelan landfall. The storm formed from the Intertropical Convergence Zone (ITCZ) on August 12 well to the east of the Windward Islands, but advisories were not issued until the next day when Alma was at peak intensity. Alma entered the southeastern Caribbean Sea at an unusually brisk westward pace of between 20 mph (32 km/h) to 25 mph (40 km/h), prompting numerous watches and gale warnings throughout the nations in this region. After crossing Trinidad, Alma became one of only four tropical storms to traverse the Paria Peninsula of northeastern Venezuela. The storm dissipated on August 15 over the high terrain of Venezuela.
The 1933 Trinidad hurricane was a deadly and destructive tropical cyclone, one of only three Atlantic hurricanes on record to produce hurricane-force winds in Venezuela. The second tropical storm and first hurricane of the extremely active 1933 Atlantic hurricane season, the system formed on June 24 to the east of the Lesser Antilles, unusually early for the Main Development Region (MDR) so early in the calendar year. It moved westward and attained hurricane status before striking Trinidad on June 27. The storm caused heavy damage on the island, estimated at $3 million. The strong winds downed trees and destroyed hundreds of houses, leaving about 1,000 people homeless. Later, the hurricane crossed the northeastern portion of Venezuela, where power outages and damaged houses were reported.
Tropical Storm Bret was the earliest named storm in the calendar year to develop in the Main Development Region of the Atlantic basin on record. The second tropical cyclone of the 2017 Atlantic hurricane season, Bret formed from a tropical wave that had exited off the coast of West Africa on June 12. The disturbance moved swiftly across the Atlantic for several days, steadily organizing despite its low latitude. On June 18, the organization increased enough for the National Hurricane Center (NHC) to begin issuing warnings disturbance while it was located southeast of the Windward Islands. The system continued to organize, and by the next day, it had developed into a tropical storm, the second of the 2017 Atlantic hurricane season. Bret continued moving swiftly to the west and struck Trinidad and Tobago early on June 20, before entering the Caribbean Sea, dissipating shortly afterwards.
During 1993, tropical cyclones formed within seven different bodies of water called basins. To date, 110 tropical cyclones formed, of which 78 were given names by various weather agencies. Only one Category 5 tropical cyclone was formed in 1993. The accumulated cyclone energy (ACE) index for the 1993, as calculated by Colorado State University was 710.4 units.
Tropical Storm Bret was a strong tropical storm that brought gusty conditions and impacts to the Windward Islands and parts of Northern South America. The second named storm of the very active 2023 Atlantic hurricane season, Bret developed from a tropical wave that moved away from the coast of West Africa and formed east of Barbados on June 19. Slow development occurred and the system intensified into a tropical storm. Bret continued to drift west and passed directly over Saint Vincent as it continued to move into the Caribbean. As it entered the Windward Islands, hurricane hunters found that Bret had sustained winds of 70 mph (110 km/h) and a central pressure of 996 mbar (29.4 inHg). For the remainder of the day on June 23, Bret left the islands and passed north of Aruba on June 24. As the storm passed Aruba, it began to weaken; it opened into a trough near Colombia, marking its dissipation.
{{cite web}}
: CS1 maint: multiple names: authors list (link){{cite journal}}
: CS1 maint: DOI inactive as of September 2024 (link)[ permanent dead link ]