CNRFC - Hydrology - River Guidance - Graphical RVF

*** IMPORTANT *** Week of June 16 - Website Data Outage - Due to a major computer upgrade the week of June 16, nearly all data on the CNRFC web site will not be updated. We anticipate the down time to be approximately 4 days. The latest deterministic hydrologic forecasts for official forecast points will continue to be available at the National Water Prediction Service during this time.

Location:

SACRAMENTO RIVER - SACRAMENTO AT I STREET (SACC1)

Latitude: 38.59º N	Longitude: 121.50º W	Elevation: 27 Feet
Location: Sacramento County in California		Bulletin Group: Lower Sacramento		River Group: Lower Sacramento

Issuance Time:

Jun 03 2025 at 8:17 AM PDT

Next Issuance:

Jun 04 2025 at 9:00 AM PDT

Action/Monitor: 27.5 Feet

Minor Flood: 33.5 Feet

Moderate Flood: 35.4 Feet

Major Flood: 36.4 Feet

Plot Type:

Please Note:
1) Each individual timeseries plotted on the graphical river forecast can be toggled on and off by clicking the legend entry above. If the "Observed (Raw Data)" contains bad data and is toggled off, the plot will scale to the remaining timeseries.

2) At extremely low river flows, the "Observed (Raw Data)" may show readings below the lower end of the available rating table, while the "Observed (Simulated)" will only show values at the bottom of the rating table, creating a potential discrepancy between the two readings.

Observed Data Credit
	Raw streamflow data is provided by the California Department of Water Resources. View California Department of Water Resources Data for this station location.

Historical Stage/Flow Data
Water Year	Peak Discharge (cfs)	Stage (feet)	Date
Most Recent 5 Years
2024*	72,000	23.72	Feb 23, 2024
2023*	92,300	28.29	Mar 15, 2023
2022*	35,500	13.31	Oct 26, 2021
2021*	17,500	8.07	Jan 31, 2021
2020*	24,700	10.28	Dec 10, 2019
Historical High Stage/Flow Events (Period of Record - Jan 1912 to Present) - Ranked by Flow
1986*	108,800	30.68	Feb 19, 1986
1997*	107,600	30.38	Mar 3, 1997
1951*	--	30.14	Nov 21, 1950
1909	--	29.60**	Jan 17, 1909
1917	--	29.40	Feb 25, 1917
* Discharge affected by regulation or diversion
** Stage of record prior to regulation by Shasta Dam began in 1943
*** Datum changed from NGVD29 to NAVD88 on 10/01/2016. Difference is +2.37 ft and must be applied to all data before date to convert to NAVD88

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Flood Impacts
36.4 Feet	Stages above 36.4 feet result in major flooding outside levees. Top of levee.
21.4 Feet	Discovery Park is closed to the public.

Official 7 Day National Weather Service Forecast (CAZ017)

Tonight: Clear. Lows 54 to 64. South winds up to 10 mph with gusts to around 25 mph.

Wednesday: Sunny. Highs 89 to 97. Northwest winds up to 10 mph with gusts to around 20 mph.

Wednesday Night: Clear. Lows 53 to 61. Southwest winds 10 to 15 mph with gusts to around 25 mph.

Thursday: Sunny. Highs 84 to 94. Southwest winds up to 10 mph with gusts to around 20 mph.

Thursday Night: Clear. Lows 53 to 61. Southwest winds up to 15 mph with gusts to around 25 mph.

Friday: Sunny. Highs 88 to 96.

Friday Night: Clear. Lows 55 to 63.

Saturday: Sunny. Highs 90 to 99.

Saturday Night: Mostly clear. Lows 56 to 65.

Sunday through Tuesday: Clear. Highs 88 to 98. Lows 55 to 65.

Product Disclaimer

This river graphic is not intended to serve as a substitute for official flood watches, warnings, advisories, or statements issued by the NWS Sacramento Weather Forecast Office. Observations are preliminary and subject to change. River levels identified as "forecast" should be consistent with those contained in official NWS products. River levels identified as "guidance" have significant uncertainty due to future weather or reservoir regulation and are provided for planning purposes only.

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Verification - Historical Graphical RVF
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To view other verification locations, use our Historical Graphical River Forecast Interface.