FGUS86 KSTO 131600 RVSLSJ Hydrologic Statement National Weather Service Sacramento CA 900 AM PDT Mon Apr 13 2026 ...Rises on the Lower San Joaquin River System... .Rises on the Lower San Joaquin River System continue as rainfall from the weekend flows through the river system. McConnell on the Cosumnes will remain in action/monitor stage and is expected to fall below action/monitor stage late tonight into early Tuesday morning. Forecasts are based on present and forecasted meteorological and hydrologic conditions at time of issuance. Unlisted forecast points are expected to remain below monitor stage. All those affected by river conditions should remain alert for rapid changes and for possible forecast revisions. For more hydrologic information and stage definitions refer to the following web site: water.noaa.gov/wfo/STO CAC067-077-141600- 900 AM PDT Mon Apr 13 2026 Cosumnes River At McConnell 4/13 8:15 stage 36.3 ft Forecast to rise above monitor stage of 38.5 FT this evening then forecast to rise to near 38.5 FT this evening then forecast to fall below monitor stage of 38.5 FT just after midnight tonight then forecast to recede to near 34.5 FT Wednesday morning. Monitor stage 38.5 ft, Flood stage 44.5 Impact for McConnell...Near 38.5 feet, Monitor Stage. $$