|  | 4C.1 | The potential vorticity structure of African easterly waves
Michael C. Morgan, University of Wisconsin, Madison, WI; and A. Hoggarth |
| 3:45 PM | 4C.2 | The Effects of asymmetric Momentum on the Genesis of Tropical Cyclone 
Yamei Xu, Nanjing University, Nanjing, China; and R. Wu |
| 4:00 PM | 4C.3 | Long-term Behavior of the Rotunno-Emanuel Tropical Cyclone Model 
Winston C. Chao, NASA/GSFC, Greenbelt, MD; and B. Chen |
| 4:15 PM | 4C.4 | Observational Analysis and Numerical Simulation of Tropical Cyclone Energy Dispersion and Associated Cyclogenesis in the Western North Pacific
Tim Li, University of Hawaii, Honolulu, HI; and B. Fu, X. Ge, B. Wang, Y. Zhu, and Y. Wang |
| 4:30 PM | 4C.5 | Influence of equatorial Rossby waves on tropical cyclogenesis in the Western Pacific
Kelly Lombardo, SUNY, Albany, NY |
| 4:45 PM | 4C.6 | A closer look at vortical hot towers in a tropical cyclogenesis environment
Andrea B. Saunders, Colorado State University, Fort Collins, Colorado |