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EspañolSOUTH ATLANTIC TROPICAL CYCLONE
A 'South Atlantic tropical cyclone' is an unusual weather event. Strong wind shear (which disrupts cyclone formation) and a lack of weather disturbances favorable for tropical cyclone development make any hurricane-strength cyclones extremely rare. If a "hurricane season" were to be demarcated in the South Atlantic, it would most likely be the opposite of the North Atlantic season, from December to May with mid-March being the peak when the oceans are warmest in the Southern Hemisphere.
Below is a list of known South Atlantic tropical cyclones.
Cyclone (or Hurricane) Catarina was an extraordinarily rare tropical cyclone, forming in the southern Atlantic Ocean in March 2004. Just after becoming a hurricane, it hit the southern coast of Brazil in the state of Santa Catarina on the evening of March 28, with winds estimated near 180 km/h (112 mph), making it a Category 2 storm on the Saffir-Simpson Hurricane Scale. The cyclone killed 3-10 people and caused millions of dollars in damage in Brazil.
This event is considered by meteorologists to be a nearly once-in-a-lifetime occurrence.
On April 10, 1991, what was either a strong tropical depression or a weak tropical storm formed in the eastern South Atlantic, recorded by weather satellites off the coast of Angola. It reached a peak on the 13th, and dissipated two days later, drifting west-southwestward from where it formed. Of the few South Atlantic tropical cyclones that have existed, this was the only one in the eastern Atlantic. This was also the first South Atlantic tropical cyclone ever observed.
A small area of convection developed on a trough of low pressure in mid January off Brazil. It organized and appeared to become a tropical depression on January 18th. The next morning, it had a small CDO and well-defined bands, and the system, either a weak tropical storm or a strong tropical depression, likely reached its peak. Located 150 n miles southeast of Salvador, Brazil, it weakened as upper level shear, typical for the basin, prevailed. The depression moved inland on the 20th as a circulation devoid of convection, and dissipated the next day over Brazil, where it caused heavy rains and flooding. This would mark the first time in recorded history that two tropical cyclones (Catarina and the January storm) have been seen during the same year in the South Atlantic, and may be considered to make up the 2003-04 South Atlantic hurricane season.
★ Mediterranean tropical cyclone
★ NOAA info on South Atlantic Tropical Cyclones
Below is a list of known South Atlantic tropical cyclones.
| Contents |
| Cyclone Catarina |
| Other known South Atlantic tropical cyclones |
| Angola tropical cyclone of 1991 |
| Tropical cyclone of January 2004 |
| See also |
| References |
| External links |
Cyclone Catarina
The crew of the International Space Station photographed the cyclone making landfall on the southern Brazilian state of Santa Catarina.
Cyclone (or Hurricane) Catarina was an extraordinarily rare tropical cyclone, forming in the southern Atlantic Ocean in March 2004. Just after becoming a hurricane, it hit the southern coast of Brazil in the state of Santa Catarina on the evening of March 28, with winds estimated near 180 km/h (112 mph), making it a Category 2 storm on the Saffir-Simpson Hurricane Scale. The cyclone killed 3-10 people and caused millions of dollars in damage in Brazil.
This event is considered by meteorologists to be a nearly once-in-a-lifetime occurrence.
Other known South Atlantic tropical cyclones
Angola tropical cyclone of 1991
On April 10, 1991, what was either a strong tropical depression or a weak tropical storm formed in the eastern South Atlantic, recorded by weather satellites off the coast of Angola. It reached a peak on the 13th, and dissipated two days later, drifting west-southwestward from where it formed. Of the few South Atlantic tropical cyclones that have existed, this was the only one in the eastern Atlantic. This was also the first South Atlantic tropical cyclone ever observed.
Tropical cyclone of January 2004
Storm of January 2004
A small area of convection developed on a trough of low pressure in mid January off Brazil. It organized and appeared to become a tropical depression on January 18th. The next morning, it had a small CDO and well-defined bands, and the system, either a weak tropical storm or a strong tropical depression, likely reached its peak. Located 150 n miles southeast of Salvador, Brazil, it weakened as upper level shear, typical for the basin, prevailed. The depression moved inland on the 20th as a circulation devoid of convection, and dissipated the next day over Brazil, where it caused heavy rains and flooding. This would mark the first time in recorded history that two tropical cyclones (Catarina and the January storm) have been seen during the same year in the South Atlantic, and may be considered to make up the 2003-04 South Atlantic hurricane season.
See also
★ Mediterranean tropical cyclone
References
External links
★ NOAA info on South Atlantic Tropical Cyclones
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