Lake Sammamish High Water Levels-Unprecedented
Posted By Dwight on June 26, 2010
Many docks are underwater, July 4 parties are being canceled, and water levels on Lake Sammamish are more like mid-winter then early summer. Can you trust the recollection of old timers who say ” I have never seen anything like this in all my years”? Yes you can. The United States Geological Survey has daily records of lake levels that go back to 1939. I went back and looked at June 12 lake levels for those 71 years and we are at an all time high. In the last 45 years, since the weir was built to control the flow at the outlet of the lake, the June 12 level has averaged 26.37, two feet below this years June 12 elevation of 28.34. This is important because most docks on the lake are built for summer use at about elevation 27.00. Just a casual observation; 75% of the docks on the lake are underwater, many by more than a foot!
More to come,
Dwight
Comments