Possible Duplicate:
“There is no rule” vs. “there isn’t rule”
If I'm not mistaken, both "There isn't a storm." and "There is no storm." have the same meaning.
I understand that the first one is the "contraction" of the second one, but what I can't understand is that if it is the contraction of the second, why the is second "There is no storm" and not "There is not storm"?