CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

SACRAMENTO RIVER - MOULTON WEIR (CLSC1)

Latitude: 39.34º N	Longitude: 122.02º W	Elevation: 76 Feet
Location: Colusa County in California		Bulletin Group: Upper Sacramento		River Group: Upper Sacramento

Issuance Time:

Apr 26 2024 at 8:13 AM PDT

Next Issuance:

Apr 27 2024 at 9:00 AM PDT

Monitor Stage: 76.2 Feet

Flood Stage: 83.8 Feet

Danger Stage: 84.8 Feet

Plot Type:

Please Note: 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.

Moulton Weir Location - Sacramento River Channel Stage/Flow (Estimated)

Please Note: Each individual timeseries plotted on the graphical river forecast can be toggled on and off by clicking the legend entry above.

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

Historical Stage/Flow Data
Water Year	Peak Discharge (cfs)	Stage (feet)	Date
Most Recent 5 Years
2022*	0****	--	--
2021*	0****	--	--
2020*	0****	--	--
2019*	8,410	79.75	Mar 1, 2019
2018*	0****	--	--
Historical High Stage/Flow Events (Period of Record - Jan 1931 to Present)** - Ranked by Flow
1942	53,900	83.80	Feb 7, 1942
1958*	45,300	84.65***	Feb 20, 1958
1958*	44,200	84.62***	Feb 26, 1958
1983*	35,300	83.71	Mar 3, 1983
1956*	29,900	83.15	Jan 16, 1956
* Discharge affected by regulation or diversion
** Peak flow before regulation by Shasta Dam began in 1943
*** Old datum. The difference is -2.85 ft and must be applied to data to convert from NGVD29 to NAVD88
**** No weir flow observed during the entire water year
***** Datum changed from USED to NAVD88 on 10/01/2019. The difference is -0.6 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

Impacts - E19 Information
76.2 Feet	Moulton Weir crest elevation. Overflow begins into Butte Sink. River Road is flooded and closed.
88.6 Feet	Stages above 88.6 feet result in major flooding of areas outside the levees. Top of levee.

Official 7 Day National Weather Service Forecast (CAZ016)

Today: Partly cloudy with a chance of rain showers and a slight chance of thunderstorms early in the morning, then partly cloudy with a slight chance of showers and thunderstorms in the late morning and afternoon. Highs 67 to 72. Southeast winds up to 10 mph shifting to the northwest in the afternoon.

Tonight: Clear. Lows around 47. Northwest winds up to 10 mph with gusts to around 20 mph.

Saturday: Mostly sunny. Highs 71 to 76. Northwest winds up to 10 mph.

Saturday Night: Mostly cloudy in the evening then clearing. Lows around 50. Northwest winds up to 10 mph.

Sunday: Sunny. Highs 74 to 79. Northwest winds up to 10 mph.

Sunday Night: Clear. Lows around 49.

Monday: Sunny. Highs 73 to 78.

Monday Night through Wednesday: Clear. Lows around 52. Highs 74 to 84.

Wednesday Night and Thursday: Mostly clear. Lows around 53. Highs 76 to 84.

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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