Session 4A
	Tropical Cyclone Modeling III: Operational Models
	Chair: Jim Goerss, NRL, Monterey, CA
	3:30 PM	4A.1	Tropical cyclone initialisation in the Met Office global model: Is it still necessary and can it be improved?   Julian T. Heming, Met Office, Exeter, Devon, United Kingdom
	3:45 PM	4A.2	Initalizations in Advanced Operational Hurricane WRF (HWRF) Model   Qingfu Liu, NOAA/NCEP/EMC, Camp Springs, MD; and N. Surgi, S. Lord, R. E. Tuleya, V. Tallapragada, and Y. Kwon
	4:00 PM	4A.3	Interpretation of tropical cyclone forecast sensitivity and dynamics from a NOGAPS singular vector perspective   Jan-Huey Chen, Department of Atmospheric Sciences, National Taiwan University, Taipei, Taiwan; and M. S. Peng, C. A. Reynolds, and C. -. C. Wu
	4:15 PM	4A.4	Improvements to the Navy's version of the GFDL Tropical Cyclone Model (GFDN) and evaluation of its Prediction Skill   Morris A. Bender, NOAA/GFDL, Princeton, NJ; and I. Ginis and R. M. Yablonsky
	4:30 PM	4A.5	Performance of the Advanced Operational HWRF Modeling System during pre-implementation testing and in real-time 2007 hurricane season   Vijay Tallapragada, NOAA/NWS/NCEP/EMC, Camp Springs, MD; and N. Surgi, Q. Liu, Y. Kwon, R. Tuleya, and W. O'Connor
	4:45 PM	4A.6	Improving wind-pressure relationship and intensity forecast skill of the operational HWRF   Young C. Kwon, NOAA/NWS/NCEP/EMC, Camp Springs, MD; and N. Surgi, S. J. Lord, R. E. Tuleya, Q. Liu, and V. Tallapragada
	5:00 PM	4A.7	Evaluation of tropical cyclone surface wind structure in operational NWP model forecasts   Timothy Marchok, NOAA/GFDL, Princeton, NJ; and R. Rogers and M. Powell

Monday, 28 April 2008: 3:30 PM-5:15 PM, Palms GF

* - Indicates paper has been withdrawn from meeting

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