Marina M Timofeyeva-Livezey¹, Roger S Pulwarty², Peer Hechler³, Anahit Hovsepyan⁴, Maxx Dilley³ and Jean-Pierre Ceron⁵, (1)NOAA Washington DC, Washington, DC, United States, (2)NOAA, Boulder, CO, United States, (3)World Meteorological Organization, Geneva, Switzerland, (4)WMO, Geneva, Switzerland, (5)Météo-France Toulouse, Toulouse Cedex 01, France