For Shag Rock :
No gale warning.
The reliability of the situation is very good.
Cloud and sun in the morning, good clear periods with lots of cloud in the afternoon. Some light showers in the morning, possibility of showers in the afternoon. In the evening, good clear periods but cloud building.
No precipitation. WNW force 4 in the morning becoming force 3 in the evening. Gusts reaching 22 knots in the middle of the day. Slight sea. Low, fairly long swell from SW. Excellent visibility.