Wednesday, May 11, 2011

10 day forecast

This 10 day forecast is being issued on May 11, 2011 for the Washington Cascades and Olympics. The map below is the 500 mb chart (at about 18,000 feet) for the period May 16 to May 20. This map is becoming all too common which shows a trough of low pressure off the coast and this will continue the pattern of below normal temperatures and above normal precipitation. The bottom line slow melt of our snowpack.

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