A station in western VA recorded 26" in 5 hours from the remains of Camille. 30-40% of that 'cane's fatalities came from VA flash floods.
For stalled TS in odd places I'd note CAR getting >6.5" in 2.5 hours on 8/17/1981. That was a strange system in many ways. Co-workers at Russell Stream (upper Allagash River) reported heavy RA at 8 AM, the CAR blitz was 10-12:30, another co-worker at the US border with St.-Pamphile, PQ had RA+ 1-4 PM and in Fort Kent we got 2" from 6 to 8 PM. Next morning I drove thru Dickey (western part of the town of Allagash) and up the Hafey Mountain Road, and hit dusty going about 1/4 mile north of the St. John.