A southwesterly and particularly variable flow prevails over the whole area.
For Anglesey (North Wales) :
No gale warning.
The reliability of the situation is poor.
For the night from Friday to Saturday SW wind force 3 continuing all night. Gusts reaching 18 knots in the early part of the night.
Slight sea. Low, short swell from SW. Excellent visibility temporarily in the middle of the night. Daytime of Saturday 20 december : The atmosphere will remain unstable.
Skies changeable becoming cloudier in late morning. Light showers all day. In the evening, very cloudy.
Light showers. SSW force 3 in the morning temporarily SW force 4 in the middle of the day. Gusts reaching 18 knots in the middle of the day. Slight sea becoming moderate in the middle of the day. Low, short swell from SW. Excellent visibility becoming good in the evening.