Hurricane Damage to Hurt Allstate Profit  NEW YORK (Reuters) - Allstate Corp. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=ALL.N target=/stocks/quickinfo/fullquote"&gt;ALL.N&lt;/A&gt;, the No. 2 U.S.  home and auto insurer, warned on Wednesday its third-quarter  profits would fall well short of expectations due to more than  \$1 billion in hurricane-related payouts.