Tropical Cyclones

Solar activity during the 2017 hurricane season has scientists studying the implications of space weather during emergencies.

On This Day, September 16, 2004, Hurricane Ivan made its first US landfall over Gulf Shores, Alabama, as a Category 3 hurricane.

We’re announcing the release of the State of the Climate in 2017 report, an assessment of the world’s climate system.

In honor of Independence Day, we take a look at typical July climate conditions and Climate Normals for several patriotic locations.

Over a decade ago, one of the country’s most deadly and destructive tropical systems set its sights on the U.S. Gulf Coast. And, in the early morning hours of September 16, 2004, Hurricane Ivan made its first landfall near Gulf Shores, Alabama, with sustained winds of over 120 mph . The Category 3 storm ravaged the the coastlines of Mississippi, Alabama, and the Florida Panhandle, producing waves over 50 feet high offshore. By the time it completely dissipated nearly a week later, Ivan had claimed the lives of 57 people and caused more than $27 billion of damage (in 2017 dollars) in the United States. Another 67 deaths in Grenada, Jamaica, Dominican Republic, Venezuela, Cayman Islands, and Barbados were also attributed to Hurricane Ivan. Round One: From the West Coast of Africa to the Gulf of Mexico Two weeks prior to its landfall along the Gulf Coast, Ivan was first born as a tropical depression off Africa’s West Coast abnormally close to the equator. And, just one day later on September 3, Ivan obtained tropical storm status when its sustained winds exceeded 38 mph. By late in the day on September 5, Ivan had intensified rapidly becoming a major hurricane

A new climatology of tropical cyclone eye location and size provides unique insight into the history and future of these storms.

Tropical cyclones are taking substantially longer to move from place to place, increasing local rainfall and flooding impacts.

Get to know our billion-dollar weather and climate disasters information, how it’s calculated, what it tells us, and why it’s so important.

A radio blackout coincided with Hurricane Irma as it passed through the Caribbean.

Today, we’re remembering the landfall of Hurricane Andrew on August 24, 1992.