Got this from my forum and apologies if this has been posted
BLUF, use current model data with caution....
"All six weather balloon launch sites along the West Coast and northwest Mexico did not report data this morning, for various reasons. Thus, the major system that is going to affect the Midwest and Great Lakes on Sunday night into Tuesday has limited data for forecasters and models to work with.
Ugh. Use all morning and afternoon models with even more caution."
From Gilbert Sebenste