Thanks to Jack Sperry, we are able to track seasonal water levels in Lake Sawyer dating back to 1996. As we can all tell just by looking at the lake, water levels have already gotten pretty low - the second lowest reading we have seen for this time of the year since data has been collected on a regular basis. Here are the trends.
This is how Jack Sperry explained what he sees:
"As you will note on the graphs, the lowest yearly water level in my collection of King County data (1996-2006) and Bob Edelman’s (2010-2018) data using my water level gauge was in 2015(bright green line) when the inlets to the lake were restrained by beaver dams until they were removed. This year (red line) is showing the 2nd lowest summer water levels in my data collection. I believe this is due to unusually lower rainfall this year and early and extended periods of warm and sometimes very hot weather. We’ve received about 10 cumulative inches of rainfall less this year than at this same time last year and coincidently our water level (red line) is just a little more than 10 inches lower than it was a year ago (brown line)."
Hopefully, the current weather outlook for rain over the next week will help arrest the decline before it gets much lower.
Thank you again Jack for keeping us up to date.