News Climate

Tropical cyclones have slowed over the last 70 years

That could mean more rainfall when the storms make landfall

Satellite image of Hurricane Harvey

TROPICAL TORRENTS  Tropical cyclones, such as 2017’s Hurricane Harvey (shown making landfall), are moving more slowly, potentially making them more dangerous.

NOAA

By Carolyn Gramling

- More than 2 years ago

Tropical cyclones don’t move as fast as they used to.

The fierce, swirling storms move 10 percent slower, on average, than they did nearly 70 years ago, a new study finds.