The cone of uncertainty, which tracks the probable path of a tropical cyclone's center, will be narrower this year and include new symbols for areas under simultaneous hurricane watch and tropical ...

We break down why this index helps to more accurately quantify whether a given tropical season was more active than usual.

The NOAA-20 satellite's false-color image of five tropical cyclones in the Southern Hemisphere. The NOAA-20 satellite's false-color image of five tropical cyclones in the Southern Hemisphere.

The cone of uncertainty, which tracks the probable path of a tropical cyclone's center, will be narrower this year and include new symbols for areas under simultaneous hurricane watch and tropical ...