For Lake Arenal : No gale warning.
The reliability of the situation is very good.
Good clear periods alternating with cloudy spells, rather dense in the morning. Possibility of showers late in the morning, possibility of showers in the afternoon.
In the evening, cloud and long sunny periods. Chance of light rain. ENE wind force 5 continuing all day. Gusts reaching 39 knots in the morning. Excellent visibility.