altostratus cloud

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Related to Alto stratus: altocumulus, nimbostratus

altostratus cloud

[¦al·tō¦strat·əs ′klau̇d]
(meteorology)
A principal cloud type in the form of a gray or bluish (never white) sheet or layer of striated, fibrous, or uniform appearance; very often totally covers the sky and may cover an area of several thousand square miles; vertical extent may be from several hundred to thousands of meters. Abbreviated As.
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3.35 Alto Stratus, 4.45 Thunder Hawk, 5.20 Mt Desert.
Uttoxeter: 2.15 Alto Stratus, 3.20 First Boy, 3.55 Lawgiver, 5.00 Barney.
Stratford: 2.15 Lady Lena, 3.15 Wassendale, 4.15 Master Nimbus, 4.50 Donovan, 5.20 Alto Stratus. Thirsk: 2.00 Kavinsky 2.30 Muzmin, 4.00 Sam's Secret, 5.10 Ingleby Princess.