NAM: Rain on Wednesday but ending shortly after when it begins. An enlarged storm system will affect the area on Thursday, continuing for at least another day after.
GFS: Hours 33 - 48 will contain rain, aka tomorrow morning until midnight Wednesday. The GFS says a small, weak system will come through approximetally Wednesday afternoon or so into Thursday and ending sometime early Thursday.
Summary: The GFS stated the storm system coming through in a few days will be much weaker coming through and will stick slightly north to the region. It will also exit the region quickly. The NAM says a storm system will come in the area stronger, larger, and farther away in the run.
The models differ largely in the few days