Forecasters warn the United States is in for a "rollercoaster ride" of weather as storms bring heavy rain and snow. Follow Newsweek's live blog for updates.

A massive storm duo spanning 12 states will unleash a "hazardous mix" of wind, rain, blizzards and crippling freezing rain.

Tornado warning in downtown San Francisco ends, damage consistent with straight line winds. Severe storms continue, flood ...

Areas of patchy dense fog are present Sunday morning along with areas with frost in the Valley. Fog will lift by noon across ...

A very soggy start to the weekend really upped our rain and snow totals. Parts of the Sierra saw more than three feet of snow.

A Level 3 storm has spawned a rare Tornado Warning in San Francisco and left behind a path of destruction across the Bay Area ...

Myrl Wallace gets his Ford F-150 truck towed after a rare tornado touched down and flipped his pickup into a bank of trees in ...

Areas of patchy dense fog are present this morning along with areas with frost. Fog will lift by noon across the valley, but mostly cloudy skies persist as the next wave of moisture moves toward ...

San Francisco residents awoke to a tornado warning, but none touched down there. It was the first such warning for the city ...

A rare tornado in Northern California on Saturday caused quite a bit of damage as the spiraling vortex flipped cars, damaged ...

A strong atmospheric river drenched Northern California with heavy rains and damaging wind gusts Saturday, leaving well over ...

SAN FRANCISCO -- The National Weather Service issued San Francisco's first-ever tornado warning on Saturday as a strong Level 3 storm moved through the region. The warning was issued at 5:52 a.m. and ...