KBUF writes how poorly the models have been.
.LONG TERM /FRIDAY THROUGH MONDAY/...
The global models continue to have poor continuity resolving the
evolution of shortwaves passing through a general zonal flow across
the country. The period of focus for precipitation will be Friday
Night through Saturday Night, with rain snow at onset becoming plain
rain...before ending as a rain snow mix. However the speed of these
shortwaves, and their influence on the broader synoptic pattern is
yet to be resolved.