A westerly, moderate and variable flow prevails over the South and the East of the basin. Over the North-West, it is southwesterly, moderate and mostly variable.
For Penzance :
No gale warning.
The reliability of the situation is poor.
For the night from Thursday to Friday NNW force 3 in the early part of the night turning WNW force 2. Gusts reaching 13 knots in the early part of the night.
Smooth to slight sea. Low, short swell from W. Excellent visibility becoming poor in the middle of the night. Daytime of Friday 23 may : The sky will remain changeable.
Skies changeable becoming very cloudy in the afternoon. No precipitation. In the evening, good clear periods but lots of cloud, too.
Risk of showers in the early hours. WNW force 3 in the morning turning WSW in the evening. Gusts reaching 14 knots in the evening. Smooth to slight sea. Low, short swell from W. Poor visibility becoming excellent in the middle of the day.