CNRFC - Hydrology - River Guidance - Graphical RVF

SACRAMENTO RIVER - MOULTON WEIR (CLSC1)

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

Issuance Time:

Mar 28 2023 at 7:57 AM PDT

Next Issuance:

Mar 28 2023 at 3:00 PM PDT

Monitor Stage: 76.2 Feet

Flood Stage: 83.8 Feet

Danger Stage: 84.8 Feet

Plot Type:

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

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
2021*	0****	--	--
2020*	0****	--	--
2019*	8,410	79.75	Mar 1, 2019
2018*	0****	--	--
2017*	15,300	80.98	Feb 20, 2017
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

Official 7 Day National Weather Service Forecast (CAZ016)

Today: Rain showers until late afternoon, then a chance of rain showers late in the afternoon. Windy. Highs around 51. Southeast winds 15 to 30 mph with gusts to around 40 mph.

Tonight: Mostly cloudy. A slight chance of rain showers in the evening, then a chance of rain showers after midnight. Breezy. Lows around 43. Southeast winds 10 to 25 mph.

Wednesday: Rain showers in the morning, then rain showers and a slight chance of thunderstorms in the afternoon. Breezy. Highs 47 to 53. Southeast winds 10 to 25 mph decreasing to 10 to 15 mph in the afternoon.

Wednesday Night: Mostly cloudy. A chance of rain showers and a slight chance of thunderstorms in the evening. Lows 34 to 39. Northeast winds 10 to 15 mph shifting to the north after midnight.

Thursday: Mostly sunny in the morning then becoming mostly cloudy. Not as cool. Highs 57 to 62. North winds up to 10 mph shifting to the south around 10 mph in the afternoon.

Thursday Night: Partly cloudy. Lows 39 to 45.

Friday: Partly cloudy. Highs 55 to 60.

Friday Night: Partly cloudy with a slight chance of rain showers. Lows around 44.

Saturday: Mostly cloudy with a chance of rain showers. Highs 56 to 62.

Saturday Night: Mostly cloudy with a slight chance of rain showers. Lows 40 to 46.

Sunday: Mostly cloudy with a chance of rain showers. Highs 56 to 61.

Sunday Night: Mostly cloudy with a slight chance of rain showers. Lows 35 to 41.

Monday: Mostly cloudy with a chance of rain showers. Highs 53 to 58.

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.

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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