For Seiun Maru :
No gale warning.
The reliability of the situation is good.
Fair weather with mostly clear skies. In the evening, relatively clear skies becoming changeable.
ESE force 2 turning WSW force 3 in the middle of the day then NNW force 2. Gusts reaching 12 knots in the middle of the day. Smooth to slight sea. Low, short swell from S. Excellent visibility becoming good in the middle of the day then good.