Nayagarh,(Baghuabarta): Hurricane Sam strengthened again to a powerful Category 4 storm on Tuesday, centered well offshore in the Atlantic Ocean but still capable of sending dangerous swells and rip currents later this week to the Bahamas, Bermuda and eventually the northeastern U.S. coast. Sam is located about 610 miles (980 kilometers) east of the northern Leeward Islands and is traveling northwest at 9 mph (14 kph), the U.S. National Hurricane Center said in a morning advisory. Hurricane-force winds were extending outward 40 miles (65 kilometers) from its center.






