Late October’s atmospheric river storm dumped record-breaking amounts of rain across the Bay Area, leading to flooding, fallen trees, mudslides, and other damage. Flood sirens whooped as residents in low-lying areas made preparations such as moving cars and stacking sandbags. Even so, there were reports of evacuations, street closures, and calls to shelter in place around the Bay, including in Santa Rosa, San Mateo, and San Anselmo.