[pct-l] need snow info for central Sierras

[Marion Davison]

I am planning a trip out of Mammoth  starting July 25.  I need 
information about snow conditions, but my empty head can't seem to find 
any online.  The high points we will hit will be Silver Pass and several 
lake basins above 10,000 feet (planning to visit those after August 15). 
Can anyone tell me where to find sites or current hiker journals so I 
can keep an eye on snowmelt conditions at the higher elevations?
I've been to postholer.com but didn't understand what I was looking at. 
Marion