Belgium into western Germany
Mid-level cold air and a surface low pressure center will affect Belgium in the morning hours. Latest GFS indicates a tongue of moisture near the low center overlapping with steep lapse rates that develop due to diurnal heating. Showers and thunderstorms are forecast that will spread eastward during the day. The set-up with moist and buoyant low-level air and weak vertical wind shear may support tornadoes. Marginally large hail is also possible with the stronger storms. Main limiting factor will be reduced low-level heating due to the cloud coverage.
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