Which type of thunderstorms is known for traveling at high speeds?

The type of thunderstorms known for traveling at high speeds is the derecho. Derechos are severe windstorms that can produce damaging winds over a long distance, often exceeding 50 knots (58 mph) and can persist for hours. The high speed of these thunderstorms is due to their linear nature, which allows them to maintain strength over great distances and move rapidly across the landscape.

Frontal thunderstorms, on the other hand, are associated with weather fronts and can vary in speed depending on the front's movement. They generally do not equate to the high-speed characteristics that define derechos. Supercell thunderstorms, while extremely powerful and capable of producing severe weather, do not travel as fast on average as derechos. Stationary thunderstorms tend to remain in one area and are not characterized by movement, making them the slowest type of thunderstorm.

Understanding the nature of derechos and their dynamics is crucial for predicting severe weather events and ensuring safety during significant thunderstorm activity.