EQECAT said on Sunday afternoon based upon current information provided by the National Oceanic and Atmospheric Administration (NOAA) about Hurricane Dennis, which strengthened between mid-day Saturday and landfall Sunday, estimated insured losses could range from $3bn to $8bn.

Hurricanes often make unexpected and dramatic changes in direction and intensity-both strengthening and weakening.

The EQECAT estimate is based upon landfall on the western Florida Panhandle.