Low 1012 hPa centered on the Celtic Sea moving at 23 knots to the East and dropping to 1008 hPa to be centered on the center of England.
For Tiree :
No gale warning.
The reliability of the situation is very good.
Very cloudy skies to overcast. Chance of light rain. In the evening, good clear periods but cloud building.
No precipitation. NW force 2 in the middle of the day turning NNE in the evening. Gusts reaching 21 knots in the middle of the day. Smooth to slight sea. Low, fairly long swell from W. Good visibility becoming poor in the evening.