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Second "1,000-Year" Flood in Two Years Slams Into Historic Maryland City

posted by Fnord666 on Tuesday May 29 2018, @06:07AM   Printer-friendly
from the flood-insurance-FTW dept.

-- OriginalOwner_ writes:

Common Dreams reports

A Maryland city was devastated [May 27] after 6-inches of heavy rain caused a downtown flash flood. Major damage is reported and many cars have been swept away.

Ellicott City was still recovering from a flash flood two years ago that killed two and forced the historic city to rebuild much of its Main Street. Residents said Sunday's flood seemed even worse than the storm in July 2016--which was called an extremely rare "one-in-1,000 year event", and cost the city tens of millions of dollars in damages.

Additional information at:
The Baltimore Sun
The Washington Post
USAToday

Original Submission

 
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  • (Score: 2) by c0lo on Tuesday May 29 2018, @04:21PM (1 child)

    by c0lo (156) Subscriber Badge on Tuesday May 29 2018, @04:21PM (#685698) Journal

    someone found some details [soylentnews.org], you may want to check.

    --
    https://www.youtube.com/watch?v=aoFiw2jMy-0 https://soylentnews.org/~MichaelDavidCrawford
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  • (Score: 1) by khallow on Wednesday May 30 2018, @01:18AM

    by khallow (3766) Subscriber Badge on Wednesday May 30 2018, @01:18AM (#686026) Journal
    Ok, I checked. First, it's not based on actual measurements as suspected. Second, it's on a fine enough scale that there's potential for a lot of 1 in 1000 events, even if their estimates were accurate. Just look at the map and the graph of rainfall. They have potential for several dozen 1 in 1000 events just on that map based on location and time span. They'll have a significant degree of dependence with neighboring regions, but it's not a stretch to generate many mostly independent possibilities from such a scale plus, a region the size of Maryland (not to mention the entire East Coast). For example, get 100 mostly independent observations and you have a 1 in 10 chance of a 1 in 1000 event every year.