A southwesterly, weak and particularly variable flow prevails over the whole area.
For Lerwick, Shetland Islands :
No gale warning.
The reliability of the situation is poor.
For the night from Thursday to Friday SW wind force 4 continuing all night. Gusts reaching 22 knots.
Smooth to slight sea. Low, short swell from WSW. Excellent visibility. Daytime of Friday 30 may : The atmosphere will remain unstable.
Good clear periods alternating with cloudy spells, sometimes dense. Showers all day. In the evening, cloudy spells, sometimes dense.
Light showers. SW force 4 becoming force 3 in the middle of the day then WSW. Gusts reaching 23 knots until the middle of the day. Slight sea. Low, short swell from WSW. Excellent visibility.