DISCUSSION: As severe thunderstorms developed across parts of Western Europe during the day yesterday, some of these storms became particularly violent. As seen in the video below captured in part of the Southeastern Netherlands, some storms produced damaging hail on the order of golf-ball to tennis ball-sized hail which caused damage such as that observed on the roof of this home located in the city of Brabant in the Netherlands. The catalyst for such damaging hail stones being produced by these thunderstorms which moved across parts of the Netherlands was a consequence of these thunderstorms moving through regions characterized by enhanced convective instability. As a result of the particularly strong convective instability, thunderstorms which move through these particular unstable regions and ingest this high instability often have very strong upward vertical velocities within the main updraft. The end-result is that these strong upward vertical velocities bolster the potential for hail stones to remain suspended within the icing layers (located in the middle to upper portions of thunderstorm); facilitating longer-duration hail stone growth through the accumulation of ice crystals around the periphery of the initial ice nucleus which serves as the base for hail growth. Having said that, these damaging hail cores induced substantial widespread damage to automobiles, homes, businesses, etc. Note how many glass windows of cars and homes as well as solar panels sustained severe damage as a result of these severe thunderstorms' hail cores moving through these populated regions of the Netherlands. Hopefully, local residents had sufficient time to take necessary precautions ahead of the arrival of these intense thunderstorms! To learn more about other high-impact weather events from across Europe, click here!