Low 989 hPa centered at 190 nautical miles in the South of Fastnet Rock (South-West Ireland) moving at 31 knots to the East-North-East and dropping to 975 hPa to be centered on the South-West of England.
For Saint Guénolé :
Warning fresh gale offshore.
We are 85% sure of the situation, because hail may not be as easy to predict.
Cloudy spells, dense at times in the morning, overcast skies with storms likely in the afternoon. No precipitation in the morning, showers with possibility of hail in the afternoon. In the evening, very cloudy with risk of storms.
Light showers progressively becoming less frequent. SSE force 3 freshening force 5 in the middle of the day then WSW force 7. Gusts reaching 47 knots in the evening. Slight sea becoming moderate in the middle of the day then rough to very rough. Low, fairly long swell from WSW. Poor visibility becoming good in the middle of the day then excellent.