Originally Posted by USMCFLYR

If your question was in response to my comment - then yes.
I tell them that I need another heading (give them one if you can) to keep you clear of that weather. If they are unable to do that - then yes - I will have to declare an emergency to remain clear.
No...I would not "just go ahead and do it". I would work very hard with ATC for options which will work for both of us prior to playing that last safety card.

USMCFLYR