A level 2 was issued across Portugal mainly for tornadoes, excessive rainfall and severe wind gusts.
The highest severe weather threat is forecast across western Iberia. A tongue of enhanced lower tropospheric moisture, with mixing ratios above 10 g/kg, will impinge on the coastline of Portugal and southwestern Spain by the late evening hours. In combination with steepening lapse rates ahead of a deep approaching trough, MLCAPE between 500 and 1000 J/kg is forecast along the coastlines between Wednesday 21 and Thursday 06 UTC. Numerous waves of deep-moist convection are forecast across the area during this time. Strong lower tropospheric bulk shear, attaining 15 m/s in 0-1 km layer, as well as SRH between 100 and 250 m2/s2 in the same layer point to enhanced tornado threat, particularly if isolated supercells manage to develop. Besides tornadoes, severe wind gusts and excessive precipitation will be possible as well. Level 2 highlights an area with the highest threat of severe.
Further east, vertical wind shear will be lower and forecast profiles across coastlines of Algeria or Sardegna and Corsica point to the enhanced threat of excessive precipitation given high RH through low to mid-troposphere and low LCLs.