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Dangerous Cold Weather for Most of the Country; Rare Winter Storm for the South; Fire Weather Concerns for Southern California

Arctic air will filter south and east through early this week. As this cold air moves across the South, a rare winter storm is forecast to develop from Texas, Gulf Coast States into the Southeast through early this week. Several new daily record low temperatures are expected, including new record-low maximum temperatures. For Southern California, fire weather concerns increase this week. Read More >

Probability of Exceedance Legend


0-19% Chance 20-39% Chance 40-59% Chance 60-79% Chance 80-100% Chance


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NOTICE:This is an experimental page meant to provide information on the potential for heat impacts in the Grand Canyon. Please contact Carter Humphreys at carter.humphreys@noaa.gov to provide any feedback.




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