There seem to be three “1000-year floods” in as many weeks here in the US. This is happening in July and early August, a time not known for heavy rainfall, especially in the places it is falling, like Death Valley. Here in Texas we are in an extreme drought. Somehow, it is humid here every day, so it is an odd sort of drought. To this amateur meteorologist it seems like southern gulf breezes push lots of moisture right past Texas, then it ends up being unleashed somewhere of the edges of the drought area.

Death Valley Experiences 1,000 Year Rain Event

St. Louis and Kentucky flooding: 2 different 1-in-1,000-year flood events in same week