Piyali Goswami¹, Segolene Berthou², Theodore G Shepherd³, Magdalena Balmaseda⁴, Regina Rodrigues⁵, Sana Mahmood⁶, Christine Pequignet⁶ and Ambrogio Volonté⁷, (1)University of Reading, Department of Meteorology, Reading, United Kingdom, (2)Met Office Hadley center for Climate Change, Exeter, United Kingdom, (3)University of Reading, Reading, United Kingdom, (4)European Centre for Medium-Range Weather Forecasts, Reading, United Kingdom, (5)Federal University of Santa Catarina, Florianopolis, SC, Brazil, (6)Met Office, Exeter, United Kingdom, (7)National Centre for Atmospheric Science, University of Reading, Department of Meteorology, Reading, United Kingdom