A rare weather event is unfolding in California, with a prolonged tornado risk along the coast and in the Central Valley from Tuesday through Friday. Meteorologists warn of waterspouts and tornadoes, including a confirmed EF-0 tornado that touched down in Boyle Heights on Christmas morning, causing damage but no injuries. The tornado had winds up to 80 mph, a quarter-mile path length, and 30 yards width, damaging roofs, windows, and signs. This event is unusual for California, which typically lacks the atmospheric ingredients for tornadoes, but the current storm system, originating in the subtropics and ingesting Arctic air, has created conditions conducive to thunderstorms and funnel clouds. The storm's impact includes damaging winds, flooding, and the potential for more tornadoes, especially late Christmas Eve through Christmas Day, with coastal areas at higher risk. The National Weather Service issued rare severe thunderstorm warnings for San Francisco, the first in over a decade, and forecasted a window for severe weather in the Central Valley, particularly from Chico to Fresno. Residents are advised to stay alert and prepared for emergency notifications. While the overall tornado risk remains low for any specific location, the storm's unusual setup has increased the likelihood of waterspouts and weak tornadoes, including a land-based tornado on Christmas morning. The storm's origin and atmospheric conditions, including strong winds and atmospheric clashes, contributed to this rare event. California's tornado season peaks in late December and spring, with an average of nine tornadoes annually, mostly in coastal areas and the Central Valley. Recent tornado activity includes a 2024 tornado in Scotts Valley and straight-line wind damage in San Francisco. In Boyle Heights, the tornado caused significant damage, with debris flying, windows blown out, and rooftops torn, but no injuries reported. Eyewitnesses described the event as a surprise and a dramatic experience. The National Weather Service classified the tornado as EF-0 based on observed damage, and experts confirmed the winds reached up to 80 mph. The event underscores California's rare but possible tornado activity during severe storms, emphasizing the need for preparedness.