Jan 9, 2023 · An atmospheric river is basically a conveyor belt of moisture from the Pacific Ocean — and while they’re not on land like typical rivers, they do contain enough water to be classified as...

Jan 29, 2025 · The definition: An atmospheric river (AR) is a long plume of moisture that stretches from the tropics or subtropics into higher latitudes, often thousands of miles long. These thin ribbons of...

The graphics below are designed to forecast the presence and strength of Atmospheric Rivers using data from the NCEP Global Forecast System (GFS), North American Mesoscale Forecast System (NAM), and Global Ensemble Forecast System (GEFS) models.

Jan 23, 2024 · An atmospheric river is a "long, narrow region in the atmosphere—like rivers in the sky—that transport most of the water vapor outside of the tropics," according to the National Oceanic and...

Feb 4, 2025 · Atmospheric rivers are long, concentrated regions in the atmosphere that transport moist air from the tropics to higher latitudes. The moist air, combined with high wind speeds, produce heavy rain and snow upon landfall, especially over mountainous terrain.

Dec 10, 2024 · An atmospheric river is a long plume of moisture that can be both helpful and destructive, particularly for those near the west coast of the United States.

Feb 6, 2024 · A well-known atmospheric river is the "Pineapple Express" — this is the system that brings moisture from Hawaii over to the West Coast of the mainland U.S.

Dec 12, 2024 · A key driver in the weather was an atmospheric river, which is a long band of water vapor that can transport moisture from the tropics to more northern areas, said Derek Schroeter, a forecaster...

An atmospheric river (AR) is a narrow corridor or filament of concentrated moisture in the atmosphere. Other names for this phenomenon are tropical plume , tropical connection , moisture plume , water vapor surge , and cloud band .

Feb 1, 2024 · An atmospheric river is a narrow corridor or filament of concentrated water vapor transported in the atmosphere. It’s like a river in the sky that can be 1,000 miles long. On average, atmospheric...