Fredrik Wetterhall

Senior Scientist
Forecast Department


Fredrik is a hydrologist by training and is now researching different aspects of weather-driven hazards with a focus on floods and droughts on the sub-seasonal to seasonal scale. Fredrik has over 15 years of experience from the field of operational probabilistic forecasting and has worked on all parts of the modelling chain. He has also experience of hydrological climate impact modelling, statistical downscaling of precipitation and model uncertainty assessment. He is a member of multiple professional bodies (HEPEX, British Hydrological Society, EGU). Fredrik Wetterhall is the author of over 70 peer-reviewed publications.

Professional interests:
  • Operational probabilistic flood forecasting
  • Uncertainty in hydrological modelling
  • Sub-seasonal forecasting of droughts and water resources
  • Impact modelling
  • User understanding of probabilistic forecasts
Career background:


PhD Hydrology, Dept. of Geosciences, Uppsala University, Sweden. Awarded September 2005. Thesis: Statistical Downscaling of Precipitation from Large-Scale Atmospheric Circulation. Comparison of Methods and Climate Regions. Supervisor: Prof Sven Halldin
MSc Aquatic and Environmental Engineering, Uppsala University, Sweden. Awarded October 2000. Dissertation: Evaluation of biomanipulation as a lake restoration technique -a case study of Lake Finjasjön. Supervisor: Dr Emil Ryden

Professional Experience

2011 - Scientist working on the EU H2020 project ANYWHERE and the operational centre of the European Flood Awareness System in he Environmental Forecasts team, Evaluation Section, Forecasting Department, European Centre for Medium-Range Weather Forecasts, Reading, UK
2007-2010 Post doc researcher at the Dept of Geography King’s College, London, UK
2006-2011 Researcher in Hydrology at Swedish Meteorological and Hydrological Institute, Norrköping, Sweden
2005-2006 Post-doctoral research assistant in Hydrology, Department of Earth Sciences, Stockholm University
2000-2005 Doctoral student at Uppsala University, Sweden
1999-2000 Application developer, IVL Swedish Environmental Research Institute, Stockholm, Sweden
External recognitions

Editorial Memberships and international committees

  • Co-editor of Theoretical and Applied Climatology (since 2013)
  • Guest-editor of Hydrology and Earth System Sciences for a special issue on "Sub-seasonal to seasonal hydrological forecasting", (2016-2017)
  • Co-chair of the HEPEX, Hydrologic Ensemble Prediction Experiment (since 2014)

 Supervision and teaching

  • 2008-2013 Co-Supervision of Ph. D. thesis (Claudia Teutschbein, Stockholm University; Hydrological Modeling for Climate Change Impact Assessment.)
  • 2007- Co-Supervision of Ph. D. thesis (Jesper Ahlberg, Royal Institute of Technology, Stockholm)
  • 2010 Brandon Parkes, King’s College London; Removal of systematic error in precipitation downscaling
  • 2009 Co-Supervision of M.Sc. thesis (Thomas White, King’s College London; Climate Impacts on Flood Hazard: modelling with HBV and UKCP09 for the River Severn.)
  • 2008 Co-Supervision of M.Sc. thesis (Clare Jeffers , King’s College London; Equifinality, uncertainty estimation and climate impacts: Projections of river flow for the Medway catchment, UK)
  • 2002 Co-Supervision of M.Sc. thesis (Sara-Sofia Hellström, Uppsala University;  En dagvattenmodell för beräkning av avrinning och transport av kväve och fosfor i Flatendiket i södra Stockholm)
  • 2000-2005 Frequent course assistant in hydrology and hydrological modelling for M.Sc. students Uppsala University


British Hydrological Society, European Geosciences Union

Recently organized workshops/conferences

#FloodHack - Help improve the Global Flood Awareness System, Hackathon, ECMWF | Reading | 16-17 January 2016