We have the maps you need to monitor the tropics, including Hurricane Rachel and Tropical Storm Simon in the Pacific and Tropical Storm Isaias in the Atlantic.

Hurricane, tropical storm and surge watches for Tropical Storm Isaias stretch from Louisiana to Florida. Here's the latest.

Have you noticed how many hurricanes starting with the letter "I" have been destructive lately? It turns out there's a simple explanation.

A hurricane's "category" is only based on wind speed. But its size and speed are also important for considering its potential impacts.

The Draconid meteor shower peaks overnight Thursday into Friday, and unlike most showers, it's best right after sunset instead of after midnight.