Grass planting and wee control are always best done in the fall. If the crab is bad a pre-emergent is the cure but it has a downside if you apply too much. It will prevent any grass seeds from germinating also. Fertilize now and all you will get out of it is more mowing. To grow your roots you fertilize during the winter. Light fertilizing in May helps over the summer imo but I never liked spring fertilizing
Cutoff lows can be fun. The later we get the more elevation dependent they become. There was one in April of 1987 that dumped 30” inches on us down in swva. It literally snowed for 4 days.
Who in the world came up with the name graupel? Probably the same people who decided that “unknown precip” was a good way to communicate weather conditions.