I think we generally associate hurricane damage as coastal events with flooding the result of tidal surges. The flooding in Vermont hundreds of miles from center of Irene reminds me of an article I read about Hurricane Camille on her 30th anniversary and the devastating flooding in south-central Virginia.
There is a marker along route 29 in Nelson county(between Lynchburg and Charlottesville) that I'd passed dozens and dozens of times but never paid much attention to. Then I read the article describing the flash floods from 27 inches of rain in a matter of hours, the tragic loss of life, and the harrowing stories from some of the survivors. Hard to imagine how a sleepy looking river in a bucolic valley could render such destruction.
Since moving from Coral Gables to Philly., I have over prepared in retrospect each time a hurricane has headed our way(Floyd 1999, Isabel 2003, and now Irene), but the current flooding in norther NJ, Connecticut, and Vermont is a sober reminder of what can happen inland.