A level 1 was issued for eastern and southern Spain and southern Portugal mainly fro large hail.
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Eastern Spain
Diurnally driven thunderstorms are not ruled out over eastern Spain. Easterly surface winds will advect a moist boundary-layer westward, where upslope flow will provide some low-level forcing. Storm that form will profit from 10-15 m/s bulk shear in the lowest 3 km, supported by north-westerly winds above the boundary layer. Well-organized storms are forecast to produce large hail and strong wind gusts. Convective activity is forecast to spread westward in the evening and night hours, as a cut-off low migrates into southern Portugal and leads to increasing lift. Large hail is expected to be the main severe threat.