 and is quickly strengthening, now packing maximum sustained winds of 115 miles an hour. NPR's Amy Held reports the now Category 3 storm is barreling toward the Caribbean, expected to make landfall tomorrow. The National Hurricane Center says barrel is expected to grow into an extremely dangerous Category 4 hurricane. Barbados, St. Lucia, St. Vincent and the Grenadine Islands all under hurricane warnings. Devastating wind damage and life-threatening storm surge are forecast.