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| the science of measuring the speed of wind |
| a warning of high-wind conditions at sea that are expected to last for up to two hours, and generally result of thunderstorms or squall lines |
| cirrus (sîr'əs) Pronunciation Key
Plural cirri (sîr'ī') A high-altitude cloud composed of feathery white patches or bands of ice crystals. Cirrus clouds generally form between 6,100 and 12,200 m (20,000 and 40,000 ft). See illustration at cloud. |