On Tue, Feb 26, 2008 at 4:55 PM, Harvey Golden <harveydgolden_at_yahoo.com> wrote: > > > Just north of Vantage the > Columbia is bordered both sides by very high and steep > canyon walls. The wind was phenomenal!!! Funny thing > was is that it was not blowing up or down the canyon, > but across it(!) It was spilling over one side, > pounding the river into mist and creating a nasty > steep short period surf on the side I was trapped on. > I've never experienced beam-winds in a deep canyon > before. What you experienced is the result of a thermal low (hot sun warming the air along the river) at elevation 700 feet being filled by dense colder air flowing down the mountains (4,000 feet higher... and almost straight up AND possibly with some snow cover still). These are normal spring and early summer winds for the Vantage area. It's why I do not recommend that anyone paddle the eastern shoreline unless they are absolutely positive of fair weather. Also... water levels on this part of the Columbia can vary by several feet depending upon how much water is being released or held by the dams. So be very careful where you set your campsite up and where you leave your boat. Craig Jungers Moses Lake, WA *************************************************************************** PaddleWise Paddling Mailing List - Any opinions or suggestions expressed here are solely those of the writer(s). You must assume the entire responsibility for reliance upon them. All postings copyright the author. Submissions: PaddleWise_at_PaddleWise.net Subscriptions: PaddleWise-request_at_PaddleWise.net Website: http://www.paddlewise.net/ ***************************************************************************Received on Wed Feb 27 2008 - 09:31:26 PST
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