For Lerwick :
No gale warning.
For the night from Monday to Tuesday ENE wind force 3 continuing all night. Gusts reaching 15 knots from the middle of the night.
Slight sea. Low, short swell from NE. Excellent visibility. Daytime of Tuesday 20 may : The weather will be good.
Sunny despite some cloudy spells but no rain. In the evening, light cloudy spells.
ENE force 3 in the morning becoming force 2 in the evening. Gusts reaching 15 knots in the morning. Slight sea becoming moderate in the evening. Low, short swell from ENE. Excellent visibility becoming good in the middle of the day then good.