Forecasting Tropical Cyclogenesis over the Atlantic Basin Using Large-Scale Data

Abstract A new dataset of tropical cloud clusters, which formed or propagated over the Atlantic basin during the 1998–2000 hurricane seasons, is used to develop a probabilistic prediction system for tropical cyclogenesis (TCG). Using data from the National Centers for Environmental Prediction (NCEP)–National Center for Atmospheric Research (NCAR) reanalysis (NNR), eight large-scale predictors are calculated at every 6-h interval of a cluster's life cycle. Discriminant analysis is then used to find a linear combination of the predictors that best separates the developing cloud clusters (those that became tropical depressions) and nondeveloping systems. Classification results are analyzed via composite and case study points of view. Despite the linear nature of the classification technique, the forecast system yields useful probabilistic forecasts for the vast majority of the hurricane season. The daily genesis potential (DGP) and latitude predictors are found to be the most significant at nearly all foreca...

[1]  John A. Knaff,et al.  A Tropical Cyclone Genesis Parameter for the Tropical Atlantic , 2001 .

[2]  Kerry A. Emanuel,et al.  The Genesis of Hurricane Guillermo: TEXMEX Analyses and a Modeling Study , 1997 .

[3]  J. Franklin,et al.  Atlantic Hurricane Season of 2000 , 2001 .

[4]  R. Tuleya.  Sensitivity Studies of Tropical Storm Genesis Using a Numerical Model , 1991 .

[5]  E. Zipser,et al.  Reflectivity, Ice Scattering, and Lightning Characteristics of Hurricane Eyewalls and Rainbands. Part I: Quantitative Description , 2002 .

[6]  H. Riehl.  ON THE FORMATION OF TYPHOONS , 1948 .

[7]  G. Grell,et al.  A description of the fifth-generation Penn State/NCAR Mesoscale Model (MM5) , 1994 .

[8]  R. Maddox.  The Structure and Life-Cycle of Midlatitude Mesoscale Convective Complexes. , 2007 .

[9]  Brian Everitt,et al.  Discriminant Function Analysis , 2001 .

[10]  Atlantic Hurricane Season of 1998 , 2001 .

[11]  Mark A. Bourassa,et al.  EARLY DETECTION OF TROPICAL CYCLONES USING SEAWINDS-DERIVED VORTICITY , 2001 .

[12]  Cheng-shang Lee,et al.  Observational Analysis of Tropical Cyclogenesis in the Western North Pacific. Part I: Structural Evolution of Cloud Clusters , 1989 .

[13]  James F. W. Purdom,et al.  Satellite Analysis of Tropical Cyclones Using the Advanced Microwave Sounding Unit (AMSU). , 2000 .

[14]  G. Holland.  The Maximum Potential Intensity of Tropical Cyclones , 1997 .

[15]  S. Colucci,et al.  Statistical Prediction of Seasonal East Coast Winter Storm Frequency , 2002 .

[16]  M. Montgomery,et al.  Tropical Cyclogenesis via Convectively Forced Vortex Rossby Waves in a Three-Dimensional Quasigeostrophic Model , 1998 .

[17]  Richard W. Reynolds,et al.  A Real-Time Global Sea Surface Temperature Analysis , 1988 .

[18]  Atlantic Hurricane Season of 1999 , 2001 .

[19]  Shuyi S. Chen.  A numerical study of the genesis of extratropical convective mesovortices , 1993 .

[20]  Christopher A. Davis.  Numerical simulations of the genesis of Hurricane Diana (1984) [presentation] , 2001 .

[21]  G. Brier.  VERIFICATION OF FORECASTS EXPRESSED IN TERMS OF PROBABILITY , 1950 .

[22]  Lance F. Bosart,et al.  The Role of Synoptic-Scale Flow during Tropical Cyclogenesis over the North Atlantic Ocean , 2000 .

[23]  Elizabeth A. Ritchie,et al.  Scale interactions during the formation of typhoon irving , 1997 .

[24]  Christopher A. Davis,et al.  Numerical Simulations of the Genesis of Hurricane Diana (1984). Part I: Control Simulation , 2000 .

[25]  W. M. Gray,et al.  GLOBAL VIEW OF THE ORIGIN OF TROPICAL DISTURBANCES AND STORMS , 1968 .

[26]  Thomas M. Smith,et al.  Improved Global Sea Surface Temperature Analyses Using Optimum Interpolation , 1994 .

[27]  Raymond M. Zehr,et al.  Observational Analysis of Tropical Cyclone Formation. Part II: Comparison of Non-Developing versus Developing Systems , 1981 .

[28]  Mark DeMaria,et al.  An Updated Statistical Hurricane Intensity Prediction Scheme (SHIPS) for the Atlantic and Eastern North Pacific Basins , 1999 .

[29]  C. Marzban.  Scalar measures of performance in rare-event situations , 1998 .

[30]  K. Emanuel.  The Finite-Amplitude Nature of Tropical Cyclogenesis , 1989 .

[31]  M. Montgomery,et al.  Hurricane Maximum Intensity: Past and Present , 2000 .

[32]  James W. Hurrell,et al.  Quality of Reanalyses in the Tropics , 2001 .

[33]  M. Lander.  Description of a Monsoon Gyre and Its Effects on the Tropical Cyclones in the Western North Pacific during August 1991 , 1994 .

[34]  R. Reynolds,et al.  The NCEP/NCAR 40-Year Reanalysis Project , 1996, Renewable Energy.

[35]  Miles B. Lawrence,et al.  The Atlantic Hurricane Season , 1985 .

[36]  Elizabeth A. Ritchie,et al.  Mesoscale Interactions in Tropical Cyclone Genesis , 1997 .