NORTHBROOK, Ill.--(BUSINESS WIRE)--The Allstate Corporation (NYSE: ALL) today announced estimated catastrophe losses for the month of May of $777 million or $614 million, after-tax. Catastrophe losses for May include 11 events with approximately 70% of the losses related to three geographically widespread wind and hail events. Total catastrophe losses for April and May were $1.37 billion or $1.08 billion, after-tax. Allstate Protection policies in force are as follows: Allstate Protection Polic