Silverlakes has always been the last to "call it." Their fields are generally in good shape all the time, which is an indication of a sand cap and I would guess they could easily absorb a 1/4" to 1/2" of rain, but the forecast is showing 1"+, which will destroy the fields if played on. Note, many semi-pro fields will have about a 3" to 4" sandcap, and the general rule of thumb is USGA sand can take on about 25% before liquefaction occurs. Professional fields are 12" sand caps. I have no idea what Silverlakes actually is.
That said, you have to look at it from Silverlakes point of view, which is the loss of parking revenue, which is likely in excess of $50k this weekend (assuming 200 teams). If I was them, I would put off the decision until the last possible date/time. Its SoCal and its not uncommon that suddenly a storm just doesn't make it down here. You have a facility that needs that parking revenue to keep up with its bond/bank payments and maintenance program.
That said, you have to look at it from Silverlakes point of view, which is the loss of parking revenue, which is likely in excess of $50k this weekend (assuming 200 teams). If I was them, I would put off the decision until the last possible date/time. Its SoCal and its not uncommon that suddenly a storm just doesn't make it down here. You have a facility that needs that parking revenue to keep up with its bond/bank payments and maintenance program.