DOI: 10.3369/tethys.2019.16.02

pp.: 15 - 24


Catalonia (NE of the Iberian Peninsula) is commonly affected by severe and non-severe hail events. Every year, hailstorms cause considerable damage to agriculture areas. Therefore, the Meteorological Service of Catalonia (SMC) started a collaborative project with the Department of Agricultural, Livestock and Fishing (DARP) of the Generalitat de Catalunya in 2016. This project has the goal of providing geo-referenced fields of the maximum daily value of the Vertical Integrated Liquid (VIL) for an area of interest.


DOI: 10.3369/tethys.2018.15.15

pp.: 3 - 17


This study uses the Weather Research and Forecasting model (WRF) and the three-dimensional variational data assimilation system (WRF 3DVAR), in cold and warm starts, with the aim of finding out an appropriate nowcasting method that would have improved the forecast of precipitation maxima in the mesoscale convective system that occurred in Catalonia (NE Spain) on March 21, 2012 at 20 UTC. We assimilated radar data using different configurations, qualitatively verifying the increase of rainwater produced by the assimilation of reflectivity.

Key words: WRF, 3DVAR, radar, precipitation

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Partially funded through grants CGL2007-29820-E/CLI, CGL2008-02804-E/, CGL2009-07417-E and CGL2011-14046-E of the Spanish Ministry of Science and Innovation

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