Contents 



Preface vi 



1 — Introduction 1 



2 — Ofterational Analysis Depictions 2 



3 — Halloween Storm 12 



Synoptic Analysis 12 



Vortex Interaction 14 



Thermal Gradient Description 20 



4 — Comparison of Halloween Storm with ERICA IOP-4 Event 26 



5 — Comparison of Halloween Storm with Blizzard of '78 27 



6 — Storm of 4-5 January 1992, Synoptic Analysis 36 



7 — Western Atlantic Retrograde Storms 41 



8 — Summary and Conclusions 45 



References 47 



SF298 



List of Figures 



Figure 1. Profiles of sea-level pressure at latitude 41°N latitude through . 

 the cyclone for the hemispheric, Sanders, and 00-hr NGM 

 analyses (firom Pauley and Bramer (1992)) 4 



Figure 2. Central sea-level pressure for the cyclone as a function of 

 reconstructed wave number retained as calculated from the 

 Fourier amplitudes (from Pauley and Bramer (1992)) 5 



Figure 3. Number of cyclogenesis events per 3x10^ km^ during 

 GALE, traveling cyclones only (from Neilsen 

 and Dole (1992)) 7 



