NAM to GFS Switch
I am not sure if this is a bug or a model issue, but I am leaning towards bug. When I choose a big city, it seems that the switch from the NAM to the GFS occurs at a different time than if I choose a rural area around the big city city.
For example, here is Little Rock:
Here is less than a hundred miles west of Little Rock (same time zone):
Is there a reason one switches at 6PM and one switches at 9PM?
Could this be related to this issue?