Leonard Smith gave a talk on ‘Insights from a century of forecast errors: the evolving role of nonlinearity in operational forecast systems’, at the ’20 years of Nonlinear Dynamics in Geosciences’ Conference, 11-16 June 2006, Rhodes, Greece. Abstract. CATS Visiting Research Fellow, Kevin Judd, gave a talk on ‘Weather forecasting: it’s about dynamics, it’s not about statistics’.