A westerly, very strong and mostly variable flow prevails over the whole area.
For Penarth :
Warning moderate gale offshore.
The reliability of the situation is good.
Skies very cloudy, risk of thundery outbreaks during the afternoon. Showers all day. In the evening, very cloudy with risk of storms.
Showers. WSW wind force 4 continuing all day. Gusts reaching 31 knots from the middle of the day. Smooth to slight sea becoming slight in the middle of the day. Low, short swell from ESE. Excellent visibility.