Happy Tipping Point Day(Colorado)
For lack of a better term, Happy Tipping Point Day!
On page two of the daily Down River Flow Report are graphs that display the two week status of various snow pack and river flow parameters. Below is the graph of Colorado clipped from today's report which includes plotted in green the total inches of water in the snow pack recorded at Colorado's 114 SNOTEL Sites (which happen to be at an average elevation of 10,188 feet).
All winter in Colorado we gain snow pack water and the the dashed green line goes uphill to the right. The solid green line is a trend line that best mathematically fits the daily points along the green dashed line. Since yesterday the number at the tip of the bright green arrow changed from a positive number to a negative number, hence instead of gaining snow pack each day we are now losing snow pack at an average trend of -.89 inches as of today. So, Happy Tipping Point Day for Colorado. You can see what the other states are doing on their graphs on page two. Utah and New Mexico have also tipped. Wyoming, Montana, Idaho, Oregon and Washington have not tipped.
This negative number will get larger each day as runoff accelerates. A large snowfall or cold spell may stall this negative numbers increase. The parameters of precipitation(blue) and temperatures(red) that may influence melt rates are also included on the graph.
The black lines are associated with the River Index for a state. It is a complex number calculated by the USGS, and I see now for some reason it is not plotting. Oh well, I hate it when that happens.