Definition: Sheet of featureless, gray clouds in the middle cloud level capable of masking the sun. Description & Characteristics. Altostratus clouds are found in the middle cloud level. And unlike their
What weather do altostratus clouds form in?
What weather is associated with altostratus clouds? Altostratus clouds often form ahead of a warm or occluded front. As the front passes, the altostratus layer deepens and bulks out to become nimbostratus, which produces rain or snow. As a result, sighting it can usually indicate a change in the weather is on the way.
Is altostratus a cloud?
Altostratus clouds are “strato” type clouds (see below) that possess a flat and uniform type texture in the mid levels. They frequently indicate the approach of a warm front and may thicken and lower into stratus, then nimbostratus resulting in rain or snow.
