It means that the waves and winds are high and will likely cause a hazard to ocean going vessels. Storms usually cause turbulant seas.
turbulent, agitative
High Mountain ranges, forbidding deserts and turbulent seas
His nature is very Turbulent. The trip was very Turbulent.
The dictionary definition of the word turbulent is windy or stormy or tempestuous. It can also mean something that is chaotic and restless and certainly not calm.
travel over seas
It means that you're observing them through a turbulent atmosphere.
Turbulent flow
from seas
His ministers predicted that turbulent times were ahead.The relationship was very turbulent.
white caps,swells,mean seas
whit land between two seas blue is the seas
Turbulent means existing in a state of agitation, as in "The boat rocked on turbulent waters." Think "air turbulence" that a plane encounters during flight. It can also be the condition of showing disturbance or disorder, and can mean to cause violence, unrest, or disturbance.