Their AFD sounds quite a bit different than the zones.
.LONG TERM /WEDNESDAY THROUGH SUNDAY/...
A large scale negative tilt upper level trough over the
Mississippi Valley this Christmas afternoon will bring
widespread showers to the area later tonight into into Wed. The
chance of rain will taper off on Thursday. While some areas may
see over an inch, the system is not as intense as the one the
other week, and the rain will be spread over several days, so
not expecting to see flooding at this point. The last system had
a warm core and very intense warm advection.