A watch means the ingredients are there for severe weather. A warning means it is happening. But there are differences based on weather type.

COLUMBIA, S.C. (WIS) - Erin is now a post-tropical cyclone as it tracks northeast farther from the East Coast. This is the last advisory for Erin from the National Hurricane Center. Continue to ...

This year, the NHC announced it would issue PTC designations 72 hours out, instead of 48 hours. This will give even more prep time for systems that develop close to the coast.

Chantal has weakened into a post-tropical cyclone and the flash flood threat from the storm has waned, the National Hurricane Center said late Monday night, July 7. As of 11 p.m. ET on July 7 ...