Going to catch what?

A couple of weeks ago we had a ward campout. Just after we arrived a storm moved in and dumped on us. Even though we were in the middle of a warm May day, it dropped hail for a short period. Last night I took Ben to Soccer practice. During one of the water breaks he ran up to me and told me, "I want to go outside tonight to see if I can catch hail." However, he said it with more of an "e" sound instead of the "ai" sound. It made me do a bit of a double take until I remembered a storm was approaching later that evening.