What is a flash drought? An Earth scientist explains

Many people are familiar with flash floods—torrents that develop quickly after heavy rainfall. But there's also such a thing as a flash drought, and these sudden, extreme dry spells are becoming a big concern for farmers ...

Hurricane Lisa menaces Central America

The northern part of Central America was on high alert Wednesday for the passage of Hurricane Lisa, with warnings of devastating winds, downpours and flash floods also affecting Mexico's Yucatan peninsula.

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