Understanding ARI's can be difficult, so here's another way to put it. Here's the "Number Of Septembers" worth of rainfall in just a 4-day period. Over 4-5 'Septembers' worth in some places #NCwx#SCwx#TNwx#VAwx

I think I prefer this. ARI units sound intuitive, but the stat doesn’t seem to jive with the psychology of our view of events.