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

Chantal has weakened into a post-tropical cyclone and the flash flood threat from the storm has wanted, according to the National Hurricane Center.

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.

Tropical Storm Fernand continued to weaken Tuesday and is expected to become a post-tropical cyclone soon, the National Hurricane Center said. Fernand is located about 635 ...