Here a check of hourly sequences, when available, is most helpful. Again, in some freak situations, stations have been deluged, when all around them conditions were quite normal. Visibility in the tropics is usually good. Over the open ocean, haze becomes a concern, especially with regard to carrier operations. Wet haze is produced under very stable conditions.
Convection is suppressed and strong surface winds are usually present.
As the wind raises salt particles from the sea surface, they absorb the moisture from the air, thereby producing this type of haze. The other type of haze is dry and occurs occasionally when continental air with a high dust content moves over the ocean. The smoke, ash, and haze that accompany volcanic eruptions also reduce risibilities when a large amount of the material is trapped beneath the trade inversion. Such conditions can last for more than a week, with the smoke, ash, and haze spreading over a large area. Integrated Publishing's Official Web Page Click here for a current index of everything on this web site.