Estibaliz Gascon

Forecast Department, Evaluation Section, Forecast Performance and Products

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Estibaliz has been working as a scientist in ECMWF since 2016.

She has participated in different European projects including ANYWHERE, IMPREX, MISTRAL and HIGHLANDER mainly producing new products for high-impact weather and investigating ECMWF IFS and ERA5 post-processing and statistical downscaling methods of ensemble forecast (especially precipitation).

She also works as an analyst in the 'Forecast Daily Report' group whose main task is the analysis and diagnostic of model performance issues in ECMWF forecast.

She is currently involved in the new Destination Earth initiative evaluating extreme events at km-scale global forecasts through the Extremes Digital Twin framework. 

Professional interests: 
  • Post-processing and statistical downscaling of forecast outputs.
  • New products for high-impact weather forecast.
  • Real-time assessment of forecast model performance.
  • Predictability at all lead times.
  • Extreme events and km-scale global forecast. 
  • Training forecast users via webinars or training courses.
Career background: 

2016-present: Scientist in Forecast Department, ECMWF.

2015-2016: Postdoctoral Research. University of Leon (Spain).

2016: Visiting Scientist, ISAC (CNR) in Lecce (Italy).

2014: Visiting Scientist, Academia Sinica, Taipei (Taiwan).

2013: Visiting Scientist, Cyprus Meteorological Service.

2010-2015: Scientist and PhD at University of Leon (Spain).

2009-2019: MSc in Meteorology. Universitat de Barcelona (Spain).

2005-2009: BSc in Environmental Sciences. University of Leon (Spain).

External recognitions: 
  • Summa Cum Laude + Best PhD Universidad de León (Spain) 2010-2015 thesis in Sciences 2016-2017



  • Hemri, S., Hewson, T.,  Gascón, E., Rajczak, J., Bhend, J., Spirig, C., Moret, L., Liniger., M. How do ecPoint precipitation forecasts compare with postprocessed multi-model ensemble predictions over Switzerland? ECMWF Technical memorandum. Number 901 (08/2022). ​
  • Magnusson, L., Hewson, T., Gascón, E. Heavy snowfall in Denmark and Sweden at the start of December. Newsletter article. Number 167 (Spring 2021). 


  • Bottazzi, M., Scipione, G., Marras, G. F., Trotta, G., D'Antonio, M., Chiavarini, B…Gascón, E.,.… Pieralice, A. (2021). The Italian open data meteorological portal: MISTRAL. Meteorol. Appl., 28( 4), e2004. 
  • Gascón, E., Magnusson, L., Barroso, J.A. Unusual snowfall in Madrid in January. Newsletter article. Number 167 (Spring 2021). 
  • Gascón, E., Montani, A., Hewson, T., Scipione, G. New flash flood forecast products for Italy. Newsletter article. Number 167 (Spring 2021). 


  • Jurlina, T., Gascón, E., Harrigan, S., Prudhomme, C. Precipitation bias correction improves flood forecasts. Newsletter article. Number 163 (Spring 2020). 


  • Gascón, E, Lavers, D, Hamill, TM, et al. Statistical postprocessing of dual-resolution ensemble precipitation forecasts across Europe. (2019) Q. J. R. Me- teorol Soc., 1– 18,
  • Fehlmann, M., Gascón, E., Rohrer, M., Schwarb, M., Stoffel, M. Improving medium-range forecasts of rain-on-snow events in prealpine areas. (2019) Water Resources Research. 55, 7638-7661,
  • Schauwecker S, Gascón E, Park S, Ruiz-Villanueva V, Schwarb M, Sempere-Torres D, Stoffel M, Vitolo C, Rohrer M. Anticipating cascading effects of extreme precipitation with pathway schemes – three case studies from Europe.(2019) Env Int., 127:291–304,
  • Magnusson, L., Gascón, E., Tsonevsky, I. Forecasts of freezing rain in Romania. Newsletter article. Number 159 (Spring 2019). 


  • Fehimann, M., Gascón, E., Rohrer, M., Schwarb, M., Stoffel, M. Estimating the snowfall limit inalpine and pre-alpine valleys: A local evaluation of operational approaches. (2018) Atmos. Res., 204, 136-148, doi:10.1016/j.atmosres.2018.01.016.
  • Gascón, E., T. Hewson, and T. Haiden. Improving Predictions of Precipitation Type at the Surface: Description and Verification of Two New Products from the ECMWF Ensemble. (2018) Wea. Forecasting, 33, 89-108, doi:10.1175/WAF-D-17-0114.
  • Merino, A. , Fernández-González, S. , Garcı́a-Ortega, E. , Sánchez, J. L., López, L. and Gascón, E. Temporal continuity of extreme precipitation events using sub-daily precipitation: application to floods in the Ebro basin, northeastern Spain. (2018) Int. J. Climatol., 38, 1877-1892. doi:10.1002/joc.5302.
  • Gascón, E., Hewson, T., Sahin, C. New products for precipitation type probabilities. Newsletter article. Number 154 (Winter 2018). 


  • Gascón, E., Laviola, S., Merino, A., Miglietta, M.M. Analysis of a localized flash-flood event over the central Mediterranean. (2016) Atmos. Res., 182, 256-268. doi: 10.1016/j.atmosres.2016.08.007.
  • Fernández-González, S., Wang, P.K., Gascón, E., Valero, F., Sánchez, J.L. Latent cooling and microphysics effects in deep convection.(2016) Atmos. Res., 180, 189-199, doi: 10.1016/j.atmosres.2016.05.022.
  • Merino, A., Fernández-Vaquero, M., López, L., Fernández-González, S., Hermida, L., Sánchez, J.L., Garcı́a-Ortega, E., Gascón, E. Large-scale patterns of daily precipitation extremes on the Iberian Peninsula. (2016) Int. J. Climatol., 36, 3873-3891, doi: 10.1002/joc.4601.


  • Fernández-González S., Valero, F., Sánchez J. L., Gascón E., López L., Garcı́a-Ortega E., Merino A. Numerical simulations of snowfall events: Sensitivity analysis of physical parameterizations. (2015) J. Geophys. Res. Atmos., 120, 10,130–10,148, doi:10.1002/2015JD023793.
  • Merino A., López L., Hermida L., Sánchez J.L., Garcı́a-Ortega E., Gascón E., Fernández-González S. Identification of drought phases in a 110-year record from Western Mediterranean basin: trends, anomalies and periodicity analysis for Iberian Peninsula. (2015), Global Planet. Change, 133, 96-108.
  • Gascón, E., Sánchez, J.L., Charalambous, D., Fernández-González, S., López, L., Garcı́a-Ortega, E., Merino, A. Numerical diagnosis of a heavy snowfall event in the center of the Iberian Peninsula (2015) Atmos. Res., 153, 250-263. doi:10.1016/j.atmosres.2014.08.001.
  • Gascón, E., Sánchez, J.L., Fernández-González, S., Hermida, L., López, L., Garcı́a-Ortega, E., Merino, A. Monitoring a convective winter episode of the Iberian Peninsula using a multichannel microwave radiometer. (2015) J. Geophys. Res. Atmos., 120, 1565-1581. doi:10.1002/2014JD022510.
  • Gascón, E., Merino, A.,Sánchez, J.L., Fernández-González, S., Garcı́a-Ortega, E., López, L., Hermida, L. Spatial distribution of thermodynamic conditions of severe storms in southwestern Europe,(2015) Atmos. Res., 164-165, 194-209. doi:10.1016/j.atmosres.2015.05.012.
  • Fernández-González, S., Valero, F., Sánchez, J.L., Gascón, E., López, L., Garcı́a-Ortega, E., Merino, A. Analysis of a seeder-feeder and freezing drizzle event. (2015) J. Geophys. Res. Atmos., 120, 3984-3999. doi: 10.1002/2014JD022916.
  • Merino, A., Fernández, S., Hermida, L., López, L., Sánchez, J.L., Garcı́a-Ortega, E., Gascón, E. Snowfall in the northwest Iberian Peninsula: Synoptic circulation patterns and their influence on snow day trends. (2014) Scientific World J., 2014, no. 480275, doi:10.1155/2014/480275.


  • Merino, A., Wu, X., Gascón, E., Berthet, C., Garcı́a-Ortega, E., Dessens, J. Hailstorms in southwestern France: Incidence and atmospheric characterization. (2014) Atmos. Res., 140-141, 61-75. doi:10.1016/j.atmosres.2014.01.015.
  • Fernández-González, S., Valero, F., Sanchez, J.L., Gascón, E., López, L., Garcı́a-Ortega, E., Merino, A. Observation of a freezing drizzle episode: A case study. (2014) Atmos. Res., 149, 244-254. doi:10.1016/j.atmosres.2014.06.014.
  • Fernández-González, S., Sánchez, J.L., Gascón, E., López, L., Garcı́a-Ortega, E., Merino, A. Weather features associated with aircraft icing conditions: A case study. (2014) Scientific World J., 2014, no. 279063, doi:10.1155/2014/279063.
  • Garcı́a-Ortega, E., Hermida, L., Hierro, R., Merino, A., Gascón, E., Fernández-González, S., Sánchez, J.L., López, L. Anomalies, trends and variability in atmospheric fields related to hailstorms in north-eastern Spain. (2014) Int. J. Climatol., 34, 3251-3263. doi:10.1002/joc.3910.

thumbnail photo of Estibaliz Gascon
Contact Details:
estibaliz . gasconecmwf . int
Tel. +44 (0) 118 9499227