For Rio de la Plata :
No gale warning.
The reliability of the situation is very good.
Bright spells increasing during the morning, changeable skies becoming relatively cloud-free in the afternoon. No precipitation. In the evening, good clear periods but cloud building.
Chance of light rain. NNW force 2 in the morning turning WSW force 3 in the middle of the day. Gusts reaching 11 knots in the middle of the day. Moderate sea becoming slight in the evening. Moderate, fairly long swell from SSW then low in the middle of the day then from SSW. Excellent visibility becoming excellent in the middle of the day.