A powerful storm called a “bomb cyclone” struck Northern California and the West Coast on November 20, 2024, bringing severe weather. The National Weather Service issued flood warnings for areas north of San Francisco due to heavy rainfall caused by the storm’s atmospheric river. Santa Rosa recorded approximately 13 cm of rain in one day, while some locations received up to 41 cm. In the Sierra Nevada, snowfall reached 38 cm at higher elevations, with winds exceeding 121 kph. Washington’s Cascade Mountains experienced over 30 cm of snow, creating dangerous conditions. The storm caused flash flooding, rockslides, and widespread disruptions, putting many communities at significant risk. The storm resulted in major power outages, hazardous travel, and fatalities. Washington faced nearly 376,000 power outages, with two deaths reported due to fallen trees, while California recorded 21,000 outages. Interstate 5 near the Oregon border was closed because of unsafe roads, flights at San Francisco International Airport were delayed, and ferry services in Washington were suspended. Experts emphasized the vulnerability of infrastructure to such events, urging resilient planning to protect communities amidst increasing climate challenges.