Forecasters say Hurricane Kirk has strengthened into a Category 4 storm in the Atlantic Ocean and waves from the system could cause life-threatening surf and rip current conditions this weekend.

Hurricane Kirk continues to strengthen in the Atlantic Ocean and could bring large swells to the east coast of the United States by Sunday, according to the National Hurricane Cen

Two hurricanes are churning with no threat to land in the Atlantic Ocean: Kirk, a Category 3 storm, and Leslie, which became a hurricane late Friday.