Deadly California atmospheric river causes evacuations as flooding wreaks havoc on state By . Chris Oberholtz, FOX Weather. Published March 12, 2023, 1:40 a.m. ET.

The deadliest form of severe weather is not tornadoes, hurricanes or snowfall. It's flooding. It happens in Pennsylvania all year long.

In 2015, an atmospheric river that was more than 5,000 miles long accompanied a massive Atlantic storm that caused widespread flooding in the U.K., Ireland and Norway.

An atmospheric river deluged parts of the Mid-Atlantic and Southeast United States this week, triggering flooding, school evacuations, and emergency rescues. The rains swept across Maryland ...

What causes a flood? There are several factors that can cause floods. River flooding usually happens when there has been a great deal of rainfall higher up in the river course which then travels ...

The warning added: "At 17.5 feet, the Skokomish River will cause moderate flooding, with deep and quick flood waters inundating some residential areas, many roads, and much of the farm land in the ...

In this video we examine some of the most common causes of flooding. A flood occurs when a river overflows its banks, but there are many contributing factors that make them more likely.

Atmospheric River Causes Flooding Chaos in Multiple States. Published May 14, 2025 at 11:52 AM EDT. By . Joe Edwards is a Live News Reporter based in Newsweek's London Bureau.