Similar to weather forecasting, but either a news source (company or individual) twists the forecast of a severe storm into a worst case scenario. This usually occurs well before a storm forecast has been solidly determined.
Person 1: The weather forecast on the news is saying Hurricane Irma is the next Harvey, and it's going to hit Charleston, SC.

Person 2: Irma is still a week away from landfall. It sounds like they're scarecasting. Don't believe everything you hear.
by YankeesIsTrash September 4, 2017
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