Atmospheric Rivers Expected to Bring Christmas Storms and Rising Temperatures
Forecasts predict heavy precipitation, high winds, and potential heat anomalies as atmospheric rivers intensify across the U.S.
Overview
- The National Weather Service forecasts a moderate chance of an atmospheric river impacting up to eight western states from December 25 to 28, including Washington, Oregon, and California.
- Heavy rainfall, mountain snow, and high winds could lead to localized flooding, landslides, and travel disruptions during the holiday period.
- Atmospheric rivers, in addition to causing heavy precipitation, are linked to extreme heat events and unseasonably warm winters, with temperature anomalies reaching 9–18°F above average.
- New research highlights the role of atmospheric rivers in amplifying heatwaves and warming winters, with significant impacts on infrastructure, agriculture, and public health.
- Scientists emphasize the need for improved forecasting to better predict both the precipitation and heat-related impacts of these intensifying weather systems.