National Weather Service United States Department of Commerce

Severe Thunderstorms in the East Sunday; Excessive Heat Lingers in the Southern U.S. and Returning to California

Scattered damaging winds from severe thunderstorms will be possible across parts of the Northeast and Mid-Atlantic States Sunday. Excessive heat will continue over the southern U.S. Sunday before another round of heat arrives Monday through the central and southern U.S. spreading into the East by Independence Day. California will see excessive heat starting Tuesday. 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 Tony Merriman at tony.merriman@noaa.gov to provide any feedback.




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