Rip current - Wikipedia
A rip current (or just rip) is a specific type of water current that can occur near beaches where waves break. A rip is a strong, localized, and narrow current of water that moves directly away from the shore by cutting through the lines of breaking waves, like a river flowing out to sea.
What is a rip current? - NOAA's National Ocean Service
Rip currents are powerful, narrow channels of fast-moving water that are prevalent along the East, Gulf, and West coasts of the U.S., as well as along the shores of the Great Lakes. Moving at speeds of up to eight feet per second, rip currents can move faster than an Olympic swimmer.
Rip Currents - National Oceanic and Atmospheric Administration
2024年9月19日 · Rip currents are powerful, channeled currents of water flowing away from shore. They typically extend from the shoreline, through the surf zone, and past the line of breaking waves. Rip currents can occur at any beach with breaking waves, including the Great Lakes.
Rip Current – What It Is and How to Escape It - Science Notes and ...
2024年9月25日 · A rip current is a strong, localized, narrow surface current that flows rapidly away from the shore, typically through a break in a sandbar or near jetties, piers, or other structures. Rip currents form due to variations in water pressure caused by wave activity.
Rip Currents - Currents: NOAA's National Ocean Service …
A rip current, sometimes incorrectly called a rip tide, is a localized current that flows away from the shoreline toward the ocean, perpendicular or at an acute angle to the shoreline. It usually breaks up not far from shore and is generally not more than 25 meters (80 feet) wide.
Things to know about dangerous rip currents and how swimmers …
2024年6月24日 · Rip currents are powerful, narrow channels of fast-moving water that are prevalent along the East, Gulf, and West coasts of the U.S., as well as along the shores of the Great Lakes. About 100 people drown from rip currents along U.S. beaches each year, according to the U.S. Lifesaving Association.
How Rip Currents Work - HowStuffWorks
2023年9月22日 · A rip current, is a narrow, powerful current of water running perpendicular to the beach, out into the ocean. These currents may extend 200 to 2,500 feet (61 to 762 m) lengthwise, but they are typically less than 30 feet (9 m) wide.
What causes a rip current—and how can you spot one?
2024年7月3日 · Rip currents are strong channels of water flowing away from the beach that typically form at breaks in the sand bar. They are caused by waves approaching the coastline straight...
Rip current | Definition & Facts | Britannica - Encyclopedia Britannica
2024年11月21日 · rip current, narrow jetlike stream of water that flows sporadically seaward for several minutes, in a direction normal or nearly normal to a beach. Such currents are probably the cause of most ocean bathing accidents blamed on undertow .
Rip Current Science - National Weather Service
Rip currents are strong, narrow, seaward flows of water that extend from close to the shoreline to outside of the surf zone. They are found on almost any beach with breaking waves and act as “rivers of the sea,” moving sand, marine organisms, and other material offshore (see pictures below). Examples of different types of rip currents.