Over 70 million people are under frost or freeze advisories across the country as far south as the Gulf Coast and Florida.
WATCH FOR FIREBALLS: ORIONIDS METEOR SHOWER EXPECTED TO PEAK THIS WEEK
Frost and freeze alerts across the U.S.
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The U.S. will break record cold highs on Tuesday for many big cities.
Record fall cold high temperatures
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Moderate-to-heavy snow is slated for the upper peninsula of Michigan.
The Great Lakes, Northeast futuretrack
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Parts of the eastern Great Lakes and interior Northeast will see the first snow of the season on Wednesday.
The Texas futuretrack
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Showers and thunderstorms will pop up along the tail end of a cold front draped across Texas and stretching through Florida.
A pattern-changing front forecast for the Northwest
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Another day of above-average temperatures is set for the Northwest, but there is a pattern change coming later in the week which will usher in colder air and snow for the mountains.
