Gretna, LA
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150M Americans under heat alerts as extreme heat wave tightens grip, lingering over nation's 250th birthday
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While not every storm is as impactful as a major hurricane when it makes landfall, tropical storms can still bring plenty of rain in a short amount of time. This can lead to flash flooding and cause river levels to rise to new record heights. Here is a look back on some of the tropical storms that caused the worst flooding.
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