Why Derechos Are So Devilishly Difficult to Predict

The destructive storms, with winds over 75 mph, are often compared to inland hurricanes. But unlike a hurricane, a derecho can come out of nowhere.

Why Derechos Are So Devilishly Difficult to Predict
The destructive storms, with winds over 75 mph, are often compared to inland hurricanes. But unlike a hurricane, a derecho can come out of nowhere.