Meaning of ACCAS in English

ACCAS

(usually pronounced ACK-kis) - A lto C umulus CAS tellanus; mid-level clouds (bases generally 8 to 15 thousand feet), of which at least a fraction of their upper parts show cumulus-type development. These clouds often are taller than they are wide, giving them a turret-shaped appearance. ACCAS clouds are a sign of instability aloft, and may precede the rapid development of thunderstorms.

A comprehensive English glossary of weather.      Полный английский глоссарий погоды.