For Shag Rock :
No gale warning.
The reliability of the situation is good.
Skies changeable to very cloudy. Risk of showers in the morning, no precipitation in the afternoon. In the evening, very cloudy.
Chance of light rain. W force 5 weakening SW force 3 in the middle of the day then becoming WSW. Gusts reaching 23 knots in the morning. Slight sea. Low, fairly long swell from SW. Excellent visibility.