Glacial Outburst Flood in Middle Fork Nooksack- May 31, 2013

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The 'hihg-mud mark' from the glacial outburst flood and debris flow is 20 feet above Bob's head. Click to enlarge.

The ‘high-mud mark’ from the glacial outburst flood and debris flow is 20 feet above Bob’s head. Click to enlarge.

A large flood of sediment and water swept the upper channel of the Middle Fork Nooksack River early in the morning of Friday, May 31. Boulders up to 10′ across were pitched onto a terrace 15′ above water level, and the river channel was buried in mud. A seismometer on Mount Baker picked up the tremor of the debris flow, and the sudden increase in river volume was detected on the stream gage at Nugent’s Corner, 25 miles away, a couple of hours later. The river is still very turbid. A report with photos is posted on the Mount Baker Volcano Research Center blog:

http://mbvrc.wordpress.com/2013/06/05/large-debris-flow-in-middle-fork-nooksack-river-may-31-2013/

 

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2 Responses

  1. Yes, I am on the list and I saw this post. Holy crap is right! Should I buy a boat??

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