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Subtropical Storm Arani

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Subtropical Cyclone Arani (Template:IPA-pt) was a subtropical cyclone that existed in March 2011 in the South Atlantic. Arani was the ninth recorded storm in South Atlantic history, fourth subtropical cyclone, third named storm, and first officially named subtropical storm.

Meteorological historyEdit

Early on March 14, 2011, the Navy Hydrographic Center-Brazilian Navy (SMM), in coordination with the National Institute of Meteorology, were monitoring an organizing area of convection near the southeast coast of Brazil.[1] Later that day a low pressure area developed just east of Vitória, Espírito Santo,[2] and by 1200 UTC, the system organized into a subtropical depression, located about 140 km (90 mi) east of Campos dos Goytacazes.[3]

Guided by a trough and a weak ridge to its north, the system moved slowly southeastward over an area of warm waters,[4][5] intensifying into Subtropical Cyclone Arani on March 15,[6] as named by the Brazilian Navy Hydrographic Center.[7] The storm was classified as subtropical, due to the convection being located east of the center. On March 16, Arani began experiencing 25 knots of wind shear due to the another frontal system bumping it from behind.[8]

Impact, classification, and recordsEdit

Prior to developing into a subtropical cyclone, Arani produced torrential rains over portions of southeastern Brazil, resulting in flash flooding and landslides. Significant damage was reported in portions of Espírito Santo, though specifics are unknown.[9] Increased swells along the coast prompted ocean travel warnings.[10]

See alsoEdit

ReferencesEdit

  1. Chura, Ledesma, Davison (2011-03-14). "South American Synopsis". Hydrometeorological Prediction Center. http://www.webcitation.org/5xBkoaJWa. Retrieved 2011-03-14. 
  2. Chura, Ledesma, Davison (2011-03-14). "South American Synopsis (2)". Hydrometeorological Prediction Center. http://www.webcitation.org/5xBlOwyHD. Retrieved 2011-03-14. 
  3. Marine Meteorological Service (2011-03-14). "Weather and Sea Bulletin Referent Analysis 1200 GMT - 14/MAR/2011". Brazil Navy Hydrographic Center. http://www.webcitation.org/5xBkFt1UJ. Retrieved 2011-03-14. 
  4. Chura, Ledesma, Davison (2011-03-15). "South American Synopsis (3)". Hydrometeorological Prediction Center. http://www.webcitation.org/5xCyMZt9W. Retrieved 2011-03-15. 
  5. Chura, Ledesma, Davison (2011-03-15). "South American Synopsis (4)". Hydrometeorological Prediction Center. http://www.webcitation.org/5xCwhzIl1. Retrieved 2011-03-15. 
  6. Marine Meteorological Service (2011-03-15). "Severe Weather Warnings". Brazil Navy Hydrographic Center. http://www.webcitation.org/5xCwy72IM. Retrieved 2011-03-15. 
  7. "Severe Weather Warnings - March 11, 2011". Brazilian Navy. 2011-03-11. http://www.webcitation.org/5xCwy72IM. Retrieved 15 March 2011. 
  8. Rob Gutro (2011-03-15). "NASA's Aqua Satellite Spots Rare Southern Atlantic Sub-tropical Storm". National Aeronautics and Space Administration. http://www.nasa.gov/mission_pages/hurricanes/archives/2011/h2011_90L.html. Retrieved 2011-03-15. 
  9. Template:Pt icon Unattributed (March 16, 2011). "Arani – tempestade subtropical afasta-se da costa do ES". Climatempo. http://www.climatempo.com.br/destaques/2011/03/16/arani-tempestade-subtropical-afasta-se-da-costa-do-es/. Retrieved March 19, 2011. 
  10. Template:Pt icon Unattributed (March 16, 2011). "Após formar um olho, ciclone subtropical Arani perde força nesta quarta". Jornal De Tempo. http://jornaldotempo.uol.com.br/noticias.html/52249/. Retrieved March 19, 2011. 

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