Atmospheric River

Moisture, or water vapor in air, that is concentrated in a narrow band more than several hundred miles wide, and extends across oceans or continents for sometimes thousands of miles, is known as an Atmospheric River. In the Pacific ocean, atmospheric rivers deliver large amounts of rain and snow to land which can benefit agriculture and water resources They may also overwhelm communities when they stall, resulting in flooding of rivers, lakes, and streets. Landslides and mudslides may happen in mountainous areas.