Waves - Ondas Altostratus before a summer\'s storm Don Torcuato city Altostratus previos a una tormenta de veren tomada en la ciudad de Don Torcuato.
Waves - Waves of Altostratus before a summer storm in Don Torcuato City. Photo from Viviana Bianchi, Don Torcuato, Argentina.
RULES: We invite contributions of recent photos you or your students have taken, with captions. We will select one interesting photo each month to be featured on the S'COOL website, with the explanation.