Tropical Storm Karen has sustained winds of 100 mph . Storm is stationary south of Louisiana . The storm will dissipate into a remnant area of low pressure on Sunday evening , with no secondary landfall along the northern Gulf Coast , forecasters said . Is expected to weaken to a tropical depression . Coastal residents warned of storm surges and dangerous waves .
Tropical Storm Karen has sustained winds of 100 mph . Storm is stationary south of Louisiana . Is expected to weaken to a tropical depression . Coastal residents warned of storm surges and dangerous waves .