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:

Oct 31 2020 at 7:23 AM PDT

Next Issuance:

Nov 01 2020 at 9:00 AM PST

Monitor Stage: 76.2 Feet

Flood Stage: 83.8 Feet

Danger Stage: 84.8 Feet

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
2019*	8,410	79.75	Mar 1, 2019
2018*	0****	--	--
2017*	15,300	80.98	Feb 20, 2017
2016*	667	77.39	Mar 14, 2016
2015*	3,794	78.60	Dec 13, 2014
Historical High Stage/Flow Events (Period of Record - Jan 1931 to Present)**
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)

Tonight: Mostly clear. Lows 43 to 53. Southeast winds up to 10 mph shifting to the northeast after midnight.

Sunday: Mostly sunny. Highs 77 to 83. Northwest winds up to 10 mph.

Sunday Night: Mostly clear. Lows 43 to 53. Light winds.

Monday: Mostly sunny. Highs around 81. Northwest winds up to 10 mph.

Monday Night: Mostly clear. Lows 46 to 56. Light winds.

Tuesday: Partly cloudy. Highs around 78.

Tuesday Night: Mostly clear. Lows 44 to 54.

Wednesday through Thursday Night: Mostly clear. Highs 78 to 84. Lows 46 to 56.

Friday and Friday Night: Partly cloudy. Not as warm. Highs around 70. Lows 43 to 53.

Saturday: Partly cloudy. Highs around 61.

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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