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Use "flashflood" in a sentence
"I laugh into the talons of the wind, and stumble down to the river to see if my flashflood nightmare might be coming true....but no, the river has barely changed."
"Like a flashflood, she heard everyone's voices at once."
"Birmingham, Alabama, to Atlanta, two to four inches on top of what we've already seen, so flashflood watches are in effect through the rest of the day today."