This morning's BOSC FA says:

SYNOPSIS...ACTIVE PTN CDFNT OVR ERN CSTL WTRS VA/MD/DE WILL MOVE
OVR INTL WTRS 12-15Z. OTRW..STNR BNDRY ACRS SWRN OH VLY THRU PD.
HI PRES WILL DMNT NERN PTN. BTR.

What does "active" mean in this context? Is there such a thing as an
"inactive" cold front, or is that just another way of saying stationary
front? Is there any difference between a "stationary boundary" and a
"stationary front"?