The most severe damage was reported in Riverside County, where dark, towering funnel clouds spun across the communities east and west of the 215 Freeway corridor. And in Orange County, walls of water, mud and debris — some up to 8 feet high — battered eastern canyons that had burned in this year’s wildfires, leaving behind a muddy mess but little major damage and no injuries.
The highly unstable and unpredictable conditions were expected to last through Friday, along with unseasonably cool temperatures, according to the National Weather Service. A blanket of hail turned neighborhoods white in Baldwin Park and Irwindale, drawing crowds of children into the streets to play with the ice. Snow dusted higher elevations and lightning strikes were reported in Mira Loma and other inland areas as the storm drifted south and west.
Via~ Weather Underground
A mile-wide tornado swept through Colorado between 11am and noon yesterday, ripping the roofs off buildings, tossing cars into the air, and killing at least one person in Weld County, northeast of Denver. Hail up to 2.75″ in diameter accompanied the storm, which took an unusual north-northwesterly track , parallel to the Rocky Mountains north of Denver. Hardest hit was the town of Windsor, between Fort Collins and Greely, where damage appeared to be at least EF3.
Figure 1.Webcam view looking east at 11:45am MDT in Windsor, Colorado as the tornado passed by. Note the golf ball-sized hail covering the ground. Image credit: windsorweather.com