You should be able to hear the Cubans easily from where you are. Take a look at
www.spynumbers.com. The database is extremely useful.
Look at "Search for stations that might be on the air now" or "on the air next hour", and pick out loggings from North America that are fairly recent. The Cuban voice station is V2a, and the Cuban Morse station is M8. If it's fairly early in the hour, you can go directly to the indicated frequency. The broadcasts typically end at a quarter before the hour, so you might have to camp out on the frequency for the next hour to start.
Of course, you can also try for other stations; it's just that the Cubans come in very strongly in the PA area. I have often been able to hear the Mossad station E10 from PA.
And, hang out in the Startchat IRC channels #wunclub, #swl, and #pirateradio. People will post loggings of numbers stations there in real time, and there are a lot of knowledgeable people there at all hours, from all over the world. Just tell them "Al sent me".