Severe thunderstorms have caused major flooding and spawned tornadoes in several states.
A low-end derecho hammered portions of the South with heavy rain and tornadoes.
A line of scattered thunderstorms produced tornadoes that damaged homes in three states.
Hurricane Zeta was the fifth named storm of the 2020 season to make landfall in Louisiana.
Hurricane Delta became the second storm in six weeks to make landfall in Louisiana.
Hurricane Laura caused major property damage after making landfall on the U.S. Gulf Coast.