Cirrostratus Clouds

Cirrostratus "halo" clouds are actally ice crystals that produce the "halo" effect. Precipitation is likely within 15 to 25 hours if winds steady from NE E to S, or sooner if winds SE to S. Other wind directions bring overcast skies.

Other varieties include:

Cirrostratus Covering the Sky

Cirrostratus Covering the Sky

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