You may be mistaking the "East coast" reference with WN's entry into PHL. WN started BWI service in 1993 and Florida service in 1996 (the year Wolfe came aboard).
Jim
Actually WN started Florida service in 94, I remember cause that was also the year they bought out Morris Air which is where I was working at the time, then the Florida expansion happend into 4 or 5 cities overnight, plus all the Morris Air cities that WN didn't serve yet also came online with them. 1994 was a very BIG year (growth wise) for Southwest.