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cold wave


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The conditions associated with air of continental polar origin, often dominated by an anticyclone behind a cold front, that moves south into central and eastern parts of the USA. Cold waves are defined as a fall of 11°C or more to a minimum base (−18°C in northern, central, and north-eastern regions) within a 24-hour period. In southern states (Florida, California, and the Gulf Coast) the minimum fall is 9°C and the base minimum 0°C.

Subjects: Ecology and Conservation — Earth Sciences and Geography.


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