We have the maps you need to monitor the tropics, including tracks, current weather and other areas to watch.

A coastally trapped wave of warm water is creeping toward California, pushing sea levels higher. The real danger comes when winter storms arrive.

A frontal boundary is stalled out across the Midwest and Central Plains, leading to a multi-day flood threat. Cities like Chicago need to be prepared.

Lightning heats air to 30,000 degrees Kelvin, hot enough to crack nitrogen apart and send it down in the rain as natural fertilizer. Here's the chemistry.

NOAA satellite data shows the Gulf Stream intensified sharply from 2014 to 2023. Here's what's driving it and what that could mean for you.