You can watch individual members of the array, but unfortunately not the entire array.
To watch a member you might need the ^ operator (in 0.9.31 you should not need it anymore)
There are hacks to inspect the internal data of the array.
Not tested it now, but from memory:
(^integer(yourarray)-1)^
(^integer(yourarray)-2)^
If integer does not work, then try longint