Ellicott City Flood — 1,000 Year Event Looks a Lot Like One of the Rain Bombs of Climate Change

robertscribbler

We live in a strange new world, one in which the familiar is all mixed up with the radically altered. Such was the case this weekend when a weather pattern that was pretty normal for summer spawned a single thunderstorm that produced a once-in-a-thousand-years flood event in Ellicott City.

Normal Weekend, Typical Weather Pattern, Abnormal Conditions

On Saturday, my wife and I readied to trek out to Shenandoah National Park for a happily-anticipated summer camping trip. As we headed out the door, the weather pattern looked mostly normal for summer, if a little stormy. A high-pressure system out over the ocean was pulling in moisture off its waters and drawing warm air up from the south. A low over western Pennsylvania and a warm frontal boundary over Maryland created instability in a big zone of convection from Northern Virginia on through to Connecticut. Overall, it was a pretty typical pattern…

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