Flash flooding strikes Rockies and east coast

High pressure in the center of the country has steered an area of low pressure north along the East Coast through the Mid Atlantic and western New England, while ridge riding showers and storms on the back end of the ridge have led to persistent rains in the Rockies.

Unfortunately, the natural result of heavy rain over the undulating terrain of both regions is flash flooding. Here are stories from Washington and Denver. Below is some imagery for Rock Creek near Washington DC.

ABC also has a comprehensive video package of the dangerous conditions across the eastern Seaboard and the Colorado Rockies.
https://www.thedenverchannel.com/news/local-news/third-consecutive-day-of-flash-flooding-possible-with-watches-posted-for-front-range-wednesday

Fortunately, both situations are on their way to alleviating, with low pressure shifting out of New England, and high pressure shifting further to the east.