National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

NOAA / NWS News and Local CNRFC Information

Late December 2022-January 2023 and Late February-March 2023 Storm Summaries - The CNRFC has published two in-depth storm summaries documenting the historic period of storms affecting the region during the 2023 Water Year. The studies include a summary of winter conditions between December 2022 and March 2023, an analysis of observed precipitation data, a discussion of weather conditions and resulting hydrologic impacts, and a deep dive into precipitation verification. To view "Section 1: Late December 2022 and January 2023", visit the link here, and to view "Section 2: Late February and March 2023", visit the link here.

CNRFC ArcGIS StoryMap: 2023 Water Year Summary - The CNRFC has published an ArcGIS StoryMap reviewing the historic 2023 Water Year. This document provides a summary of the antecedent conditions, the series of winter storms to affect the region, the resulting impacts of these storms, and the prolonged spring and summer snowmelt period. To access this ArcGIS StoryMap, please visit the link here. Also, we will soon be publishing a two part "Storm Summary" for the active weather pattern from late December 2022 through March 2023 that details the overall weather pattern, resulting precipitation and hydrology, and a discussion of verification.

CNRFC Daily Briefing - View a graphical summary of current & forecast weather & hydrologic conditions. Updated by 10 AM PT.

Alert MessageAt Least One River Guidance (Flood Forecast) Point Is Currently or Forecast to Exceed Monitor StageAlert Message

Recently-Issued CNRFC Text Products:  

 Home Page Version:   Interactive Map  |  Legacy

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Ensemble Forecast Point Locations Official River Guidance Point LocationsUnofficial River Guidance Point LocationsObserved River Conditions Point Locations
Ensemble Forecasts

Graphical RVF Search

Gage Information

Place cursor over gage
on map for readout.

        River / Creek

        Gage / Station
Last Map Update:   Monday March 4th 2024 at 1:32 PM PST  (1 Minute Old)
(Data is updated every 5 minutes)

River Guidance Points Forecast Above Specified Stage Definitions  (Select NWS ID for Specified Graphical RVF)
NWS IDRiver / CreekGage / StationMonitor
Latest Observed
Stage / Flow
Latest Observed
Date / Time
Max Forecast
Stage / Flow
CLAC1SACRAMENTO COLUSA WEIR 60.970.171.160.95  /  103/04 01:00 PM PST62.0  /  376Above Monitor
TISC1SACRAMENTO TISDALE WEIR 44.151.652.646.25  /  8,42403/04 01:15 PM PST46.4  /  9,427Above Monitor
FMWC1SACRAMENTO FREMONT WEIR 32.039.540.533.29  /  76,02203/04 01:15 PM PST33.3  /  76,320Above Monitor
RVBC1SACRAMENTO RIO VISTA 7.411.912.95.8  /  NA03/04 01:00 PM PST7.4  /  NAAbove Monitor
LSBC1YOLO BYPASS LISBON  /  NA03/04 01:15 PM PST15.5  /  NAAbove Monitor
CLKC1CLEAR LAKE LAKEPORT  /  347,48803/04 01:15 PM PST8.3  /  347,086Above Monitor
STVC1MERCED STEVINSON  /  3,95803/04 01:00 PM PST68.4  /  4,453Above Monitor

** NOTE **  Stage is presented in "Feet" while Flow (Storage at CLKC1) is presented in "cfs" ("Acre-Feet").

River Guidance Forecast Group Issuance and Next Update Times  (Select Forecast Group for Specified Text RVF)
FG IDForecast GroupIssuance TimeNext Update Time
SENorth Coast[ Alternate Link ]CSVMar 04 2024 at 8:18 AM PSTMar 04 2024 at 3:00 PM PST
RNRussian Napa[ Alternate Link ]CSVMar 04 2024 at 8:19 AM PSTMar 04 2024 at 3:00 PM PST
USAUpper Sacramento[ Alternate Link ]CSVMar 04 2024 at 8:14 AM PSTMar 04 2024 at 3:00 PM PST
LSCLower Sacramento[ Alternate Link ]CSVMar 04 2024 at 8:15 AM PSTMar 04 2024 at 3:00 PM PST
SJSan Joaquin[ Alternate Link ]CSVMar 04 2024 at 8:39 AM PSTMar 04 2024 at 3:00 PM PST
CCCentral Coast[ Alternate Link ]CSVMar 04 2024 at 8:38 AM PSTMar 04 2024 at 3:00 PM PST
SCASouthern California[ Alternate Link ]CSVMar 04 2024 at 9:03 AM PSTMar 04 2024 at 3:00 PM PST
ESEastern Sierra[ Alternate Link ]CSVMar 04 2024 at 9:00 AM PSTMar 04 2024 at 3:00 PM PST
HBTHumboldt[ Alternate Link ]CSVMar 04 2024 at 9:04 AM PSTMar 04 2024 at 3:00 PM PST
SAC Sacramento Delta (Tides) [ Alternate Link ] Mar 04 2024 at 6:49 AM PSTMar 05 2024 at 9:00 AM PST
** NOTE 1 **  The Klamath and North Coast river guidance points are included in the North Coast Forecast Group.
** NOTE 2 **  The Feather Yuba, American, and Cache Putah river guidance points are included in the Lower Sacramento River Forecast Group.
** NOTE 3 **  The Delta Region, Upper and Lower San Joaquin, and Tulare river guidance points are combined in the San Joaquin River Forecast Group.
** NOTE 4 **  The Salinas Pajaro and South Bay river guidance points are included in the Central Coast Forecast Group.
** NOTE 5 **  The Southern California and San Diego/Inland river guidance points are included in the Southern California Forecast Group.

CNRFC Daily Briefing
Observed Precipitation Graphical Discussion Forecast Precipitation
** Note ** Click on Indvidual Images to Expand.