For Rena Majore :
No gale warning.
For the night from Tuesday to Wednesday NW force 1 in the early part of the night turning N. Gusts reaching 11 knots in the early part of the night.
Smooth sea. Low, short swell from WNW. Excellent visibility becoming good in the middle of the night then good. Daytime of Wednesday 21 may : The atmosphere will remain unstable.
Good clear periods alternating with cloudy spells, sometimes dense. Light showers all day. In the evening, cloudy spells, sometimes dense.
Light showers. NNE force 1 becoming NE force 2 in the middle of the day then ENE. Gusts reaching 12 knots in the middle of the day. Smooth sea. Low, short swell from WNW then from N in the middle of the day. Good visibility becoming excellent in the middle of the day.