We still don't know why tornados happen, but we're getting closer to finding answers — just as the Trump administration ...

You often hear meteorologists talk about categories of storms. Here's what different storms can do at different categories.

Hurricanes are ranked 1-5 using the Saffir-Simpson hurricane wind scale, with category 5 being the highest. This scale is also based on maximum sustained wind speed.

Wind speed probability data is not available north of 60.25 degrees north latitude. Wind arrivals table Arrival times are generated from a New York Times analysis of National Hurricane Center data.

This summer marks 20 years since Hurricane Katrina made landfall on the Gulf Coast, leaving more than 1,300 people dead and displacing more than a million people across the region.

Hurricane Katrina taught the Gulf Coast plenty of things, including most parts of the region just aren't as prepared as they think when storms come.

National Geographic's "Hurricane Katrina: Race Against Time" revisits the deadly catastrophe 20 years after it struck New Orleans. It airs July 27.

The Historic New Orleans Collection spotlights Mary Landrieu, who reflects on her experience after Hurricane Katrina.

Weather 20 Years After Katrina: A conversation with storm chaser Josh Morgerman A look back at Hurricane Katrina and how the Gulf Coast is recovering two decades later.

The free June 26 screening of Katrina Babies kicks off a new series honoring Hurricane Katrina’s legacy through film, reflection, and community dialogue.