A southerly, very strong and mostly variable flow prevails over the West and the North of the basin. Over the South-East, it is northwesterly, moderate and variable.
For Dinorwic Marina :
Warning moderate gale offshore.
The reliability of the situation is good.
In the evening, very cloudy skies becoming totally overcast.
Drizzle in the early hours. S wind force 4. Gusts reaching 20 knots in the evening. Smooth to slight sea. Low, short swell from WSW. Excellent visibility.