Man: Are you the weatherman?
Weatherman: I guess so; sometimes I wonder.
Man: Oh, good. So, you can tell me what the weather’s going to be like.
Weatherman: Oh, I can tell you what the weather might be like.
Man: What it might be like?
Weatherman: Just a minute. If we have all these clouds here and the wind is blowing from east to west, it is probable that the clouds will go from east to west.
Man: Probable? Why? Can’t you be sure?
Weatherman: No, the wind might change the direction and blow from west to east.
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Probable? Why? Can’t you be sure? ←
Is “Probable?” a short form for “It is probable?” in this dialogue?
Thank you