The Allstate Corp. today announced $1.4 billion in estimated catastrophe losses for the month of April.

The estimated April catastrophe losses total about $1.37 billion for the Allstate brand and about $30 million for Encompass brand.

April catastrophe losses included 13 events in the United States and Canada, with the largest losses from tornadoes in Alabama, Arkansas, Georgia and Virginia that occurred in the last week of the month.

Northbrook, Ill.-based Allstate said that during April it deployed more than 3,000 claims professionals to assist customers, with more than 100,000 claims reported to date in the areas affected by these catastrophes.

In the future, Allstate said it will  announce monthly and quarter-to-date estimates for catastrophe losses when monthly catastrophe losses are estimated to exceed $150 million. Over the past 10 years, Allstate said it has had catastrophe losses exceeding $150 million in about 30 percent of months.