On Sunday at 2:15 p.m. a flood warning was issued by the NWS Sacramento CA in effect until Monday at 2:15 a.m.

On Sunday at 1:28 p.m. an updated flood warning was issued by the NWS Medford OR in effect until Tuesday at 10 p.m.

When water levels rise in the Sacramento River, the Fremont Weir spills into the Yolo Bypass to reduce downstream flooding.