Devastating tornadoes, floods, earthquakes overseas and a busier-than-usual hurricane season have U.S. insurance companies bracing for record losses in 2011. Insurers could suffer as much as $10 billion from weather-related losses in the United States in 2011, which is up from the average of $2 billion to $4 billion, according to EQECAT Inc, which provides disaster and risk models to insurance companies. On top of the potential U.S. losses, insurers are also reeling from disasters overseas, including large earthquakes across the Pacific Rim. And as if that was not enough, analysts now expect an above-average Atlantic hurricane season.