This is the worst flooding Oahu has seen in over two decades. Damage already tops $1 billion, and several additional inches of rain are expected in the coming days.

A severe weather threat is in play late Sunday as the conditions are right for storms to fire up across the Ohio Valley. While the main threats are damaging winds and large hail, a tornado cannot be ruled out. This is not expected to be as intense as the recent outbreaks but should still be monitored if you live anywhere from southeastern Missouri to northern New Jersey. The system will bring 1-2 inches of rain for the region, while snow is likely for northern New England including places like Boston. Here’s the latest forecast.

A historic heat wave is scorching through the West Coast into the Plains. And in the safety warnings from health and weather experts, millions of people are being told to skip drinking coffee, until the extreme heat is over. Watch this video to see why.

From misty forests to glowing red canyons and star-filled deserts, these parks reveal their most enchanting side in spring, reminding us that sometimes the most magical adventures happen in the quiet moment between winter and summer, when the world begins to bloom again.

This isn't an ordinary heat wave. Many locations could set new all-time March, even April, record highs from the West Coast into the Plains. And this will have one other impact that could linger into summer.