A snowstorm blew into the mid-Atlantic states on Tuesday, causing dozens of accidents on icy roads, prompting school closures and stoking worries about possible power outages.

Weather balloons and “hurricane hunter” planes aid the science of understanding California’s atmospheric rivers.

Days after an atmospheric river brought record-setting rainfall to California, the state is in the crosshairs of another rainy storm system.

California water officials are taking steps to control rising water levels at reservoirs following two atmospheric rivers that brought heavy rain to the region.

A major atmospheric river storm is barreling toward California, raising the specter of damaging landslides and flooding across much of the Southland.