1. World Weather Research Programme Synoptic Predictabilities (THORPEX) Mesoscale Weather Forecasting Research Tropical Meteorology Research Nowcasting Verification Societal and Economic Applications WORLD WEATHER RESEARCH PROGRAMME Develops improved and cost effective weather forecasting techniques, with emphasis on high impact weather and promotes their application among Member States. SYNOPTIC PREDICTABILITIES (THORPEX) A 10-year international research and development programme to accelerate improvements in the accuracy of one-day to two-week high impact weather forecasts for the benefit of society, the economy and the environment. MESOSCALE WEATHER FORECASTING RESEARCH Promotes, organizes and/or endorses end-to-end weather research and development projects (RDPs) including understanding of weather processes, improving forecasting techniques and the utility of forecast information with an emphasis on high-impact weather. TROPICAL METEOROLOGY RESEARCH Promotes, Identifies and supports research initiatives relevant to the high-impact weather forecast requirements of NMHSs in tropical and monsoon regions, and thus contribute to social and economic benefits by preventing or mitigating disasters via imporved forecasts of tropical cyclones and anomalous monsoon rainfall. NOWCASTING Promotes and aids the implementation of nowcasting in the WWRP framework and within NMSs and among their end-users, including the potential use of numerical modelling and assimilation of very high resolution data. VERIFICATION Facilitates the development and application of improved diagnostic verification methods to assess and enable improvement of the quality of weather forecasts, including forecasts from numerical weather and climate models. SOCIETAL AND ECONOMIC APPLICATIONS Advances the science of the social and economic application of weather-related information and services and reviews and assists in the development and promotion of societal and economic- related demonstration projects. Contact: arep@wmo.intarep@wmo.int TROPICAL METEOROLOGY RESEARCH Promotes, Identifies and supports research initiatives relevant to the high-impact weather forecast requirements of NMHSs in tropical and monsoon regions, and thus contribute to social and economic benefits by preventing or mitigating disasters via imporved forecasts of tropical cyclones and anomalous monsoon rainfall.

2. WWRP-TMR 1.Tropical Cyclone Panel: –Expert Team on Observation, Processes and Prediction –Expert Team on Landfall Processes –Expert Team on Climate Impacts on TCs –Limited Area NWP 2.Monsoon Panel: –Expert Team on Severe Monsoon Weather –Expert Team on Climate Impacts on Monsoon Weather –Monsoon Activity Centers

3. Monsoon Panel Strategy Climate Scales: Global change, Decadal, Interannual, Seasonal, down to intraseasonal –Cooperate with and support WCRP monsoon activities –Cooperate with regional and international programs (e.g., APEC Climate Center) –Research on Climate Impacts on local weather Weather Scales: Convection, Meso-, Synoptic, up to Intraseasonal –Regional and Local phenomena, effects of terrain –Top priority: Torrential rainfall, flooding –Joint efforts with TMRP/TC component

4. Activities Scientific and Training Workshops –Review state of the art, current issues and future directions –Facilitate researchers - forecasters interactions –Relating research results to forecasters on an ongoing basis –Update WMO Report on Monsoon for Member NMHSs. WMO Monsoon Activity Centres –New Delhi (IMD: South Asia) –Kuala Lumpur (MMS: Southeast Asia) –Beijing (CMA, East Asia) Encourage, endorse and support weather scale monsoon research through regional and international cooperation

5. Research Projects Encourage, endorse and support weather scale monsoon research through regional and international cooperation –Examples SCHeREX Southern China Heavy Rainfall EXperiment (MAPHRISC: CAMS/CMA, IAP/CAS) SoWMEX Southwest Monsoon EXperiment (CWB/NTU) TiMREX Terrain-induced Monsoon Rainfall EXperiment (NSF/NCAR) PHONE06-15 Pukyong Natl U - HyARC, Nagoya U Observation Network over East China Sea –Relevant WWRP-TMR/TC Project TCS08 Tropical Cyclone Structure 08 (ONR/NRL/NPS)

6. upstream conditions, surface fluxes, stability → blocking, Inversion, convection Island Soundings Taiwan Island * * * * Ship Sounding DROPSONDE MISSIONS? Early Season Meiyu front sharp SST gradient → baroclinic boundary layer enhances LLJ? SoWMEX/TiMREXSCHeREX Doppler radars Dropsondes Upsondes Radiosondes

7. PHONE06-15 Pukyong N U and HyARC, Nagoya U Observation Network over East China Sea Nine-year observational project starting 2006 over southern part of South Korea, East China Sea, and Okinawa Purposes: –Formation mechanisms of precipitation systems associated with the Meiyu/Baiu/Changma front and typhoons over ECS. –Research in short-term forecasting of heavy rainfalls (QPE and QPF) Observations and Modeling: –Ground, sounding and satellite data –Doppler radars –Cloud resolving model Linkage –Coordination with SoWMEX/TiMREX being planned.

8. Typhoon Doppler radars Radiosondes Meiyu-Baiu-Changma front Early season Meiyu-Baiu Front （ COBRA, NICT ） Gosan Jindo Sungsanpo PHONE06-15

9. TCS08 Tropical Cyclone Structure 2008 Field Project (WWRP/TMR Tropical Cyclone Research) August – September 2008 Equator – 30N, Asian coast to Dateline Purposes: –TC Formation in western North Pacific monsoon trough. –TC Evolution after Formation Observations –Ground, sounding and satellite data –Airborne wind Lidar and ELDORA Doppler radar Linkage –Coordination with the concurrent WWRP/THORPEX Pacific Area Regional Campaign (T-PARC).

10. Workshops IWM-4: –Time: Late October 2008 –Location: Beijing, China –Cosponsored by CLIVAR AAMP –Update WMO TD No. 1266: Global Monsoon Systems: Research and Forecast. balance between climate and severe weather topics Possible: –8th training workshop on monsoon (late 2008) –Workshop on QPE/QPF of TC and monsoon (2009)