IWTC-9 Honolulu, Hawaii, USA 3-7 December 2018

OBJECTIVE To review recent progress in tropical cyclone (TC) operations and research. To identify needs and opportunities in TC operations and research. To foster communication between the operational and research communities. To make recommendations to WMO, and to the research and operational communities, for actions that will improve the global knowledge of and response to TCs.

PAST IWTCs IWTC Bangkok (1985) (11) Prof William M. Gray IWTC-II Manila (1989) (12) Dr Greg Holland IWTC-III Huatulco (1993) (10) Mr Jerry D. Jarrell IWTC-IV Hainan (1998) (10) Dr Gary Foley IWTC-V Cairns (2002) (10) Prof Russell Elsberry IWTC-VI San Jose (2006) (10) Mr CY Lam & Prof Johnny Chan IWTC-VII St Gilles (2010) (6) Dr Jeff Kepert & Dr Cris Velden IWTC-VIII Jeju (2014) (5) Mr Andrew Burton & Prof Jenni Evans IWTC-9 Honolulu (2018) (5) Dr Mike Brennan & Prof Yuqing Wang

Co-Chairs: Prof Yuqing Wang & Dr Mike Brennan

IWTC International Committee Members:   Yihong DUAN (Chair Working Group on Tropical Meteorology Research (WGTMR)) Johnny CHAN (Chair Tropical Cyclone Panel/WGTMR)  TC Researchers: Espie CAYANAN (Chair Expert Team (ET) Observation Processes and Prediction) Phil KLOTZBACH (Chair ET Seasonal TC Forecasts) Tom KNUTSON (Chair ET Climate Impacts on Tropical Cyclones) Robert ROGERS (Chair ET Landfall Processes) TC Forecasters: Lixion AVILA (Representative RSMC Miami - USA) Andrew BURTON (Representative of TCWCs of Region V) Philippe CAROFF (Representative, RSMC La Reunion - France) Ravind KUMAR (Representative, RSMC Nadi – Fiji) M MOHAPATRA (Representative RSMC New Delhi - India) Hisaki EITO (Representative RSMC Tokyo - Japan) Invited Experts: Zhiyu LIU Hydrology  Shishir DUBE Storm Surge Linda ANDERSON-BERRY Society & Economy Jing CHEN Verification Raymond TANABE Chair Local Organizing Committee

Sub-topic Leads/Rapporteurs Help organize and lead subtopic rapporteurs, provide topic summary report at IWTC, formulate recommendations. Sub-topic Leads/Rapporteurs Organize and lead subtopic working groups, prepare report and present at IWTC, assist topic chair. Members of Working Groups Help rapporteurs to prepare a comprehensive report updating subtopic research and operational applications, attend IWTC if possible to participate in topic discussions and deliberation of recommendations.

Pre-Workshop Report Plenary session Breakout Sessions Recommendations Committee

Special Focus Session Leads Keynote Speakers Prof Russell Elsberry “ Toward improved analyses & forecasts of TC Structure & more effective probabilistic TC hazard information & warning” Dr Sarah Jones “ WWRP: catalyzing innovation in weather science internationally” Special Focus Session Leads Presents an expert review on a topic of current interest and relevance.

Local Organising Committee Raymond Tanabe Workshop Logistics International Organising Committee Advise Co-Directors Approve IWTC organizational and content decisions Recommendations Committee Chairperson: Dr Robert Rogers Finalize set of recommendations from IWTC-9

THEME:   Toward improved analyses and forecasts of TC structure and more effective probabilistic TC hazard information and warnings KEY TOPICS Cyclogenesis Tropical Cyclone Track Tropical Cyclone Intensity Change Tropical Cyclone Structure Analysis and Change Tropical Cyclone Analysis and Remote Sensing Communication of Forecast Uncertainty and warnings using Probabilistic Hazard Information Tropical Cyclone Variability beyond the Synoptic Scale

SPECIAL FOCUS SESSIONS   Next Generation Meteorological Satellite Systems Significant Tropical Cyclones in 2017-2018 Storm Surge Forecasts & Warnings New Observation Strategies New uses of UAVs in TC Research Basic set of TC verification metrics for NMHSs Global Multi-Hazard Alert Systems Improving skill of TC Forecasts and the S2S database SPECIAL TOPIC SESSION Numerical Weather Prediction

STATISTICS   TOTAL REGISTERED PARTICIPANTS 160 FORECASTERS 51 RESEARCHERS 109 FEMALE 35 COUNTRIES 27 INTERNATIONAL ORG 3

Thank you Merci