1v1³

Moderately high waves of greater length, edges of crests begin to break into spindrift

Sea like a mirror.

Huge waves sea is completely white with driving spray, air filled with foam.

Small waves becoming longer, numerous whitecaps..

Scaly ripples without foam crests.

Exceptionally high waves, sea covered with white foam patches, very poor visibility.

Large wavelets, crests begin to break, scattered whitecaps.

Small wavelets, crests have appearance, not breaking.

Larger waves begin to form, whitecaps everywhere, more spray..

High waves, sea begins to roll, dense streaks of foam