Altostratus Clouds: Expect Light Rain

Altostratus clouds are mid-level, flat clouds that appear as gray or blueish-gray clouds expanding across the sky. These clouds are thin enough to allow a distorted image of the sun or moon to peer through. Altostratus tend to form ahead of a warm or occluded front. They can also occur together with cumulus at a cold front.

  • Precipitation Cloud: Yes, light rain and virga.
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