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Dense fog impacting over 42 million from the Plains to the Carolina coast

The eastern US is getting a 3 for 1 out of the warm, moist air pushing in from the Gulf of Mexico. The heavy rain and flash flood threat, potentially dangerous dense fog, and above average temperatures across the whole Southeast. Pedram Javaheri is in the CNN weather center with details on the duration of this warm, wet, and muggy pattern.

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