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

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SACRAMENTO RIVER - MOULTON WEIR (CLSC1)
Latitude: 39.34º NLongitude: 122.02º WElevation: 76 Feet
Location: Colusa County in CaliforniaBulletin Group: Upper SacramentoRiver Group: Upper Sacramento
Issuance Time: May 30 2023 at 7:57 AM PDTNext Issuance: May 31 2023 at 9:00 AM PDT
Monitor Stage: 76.2 FeetFlood Stage: 83.8 FeetDanger Stage: 84.8 Feet


Moulton Weir Location - Sacramento River Channel Stage/Flow (Estimated)
Observed Data Credit
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Raw streamflow data is provided by the California Department of Water Resources.
View CA DWR Data for this station location.

Verification - Historical Graphical RVF
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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
ESRI™ Locator Map
Impacts - E19 Information
76.2 FeetMoulton Weir crest elevation. Overflow begins into Butte Sink. River Road is flooded and closed.
88.6 FeetStages above 88.6 feet result in major flooding of areas outside the levees. Top of levee.
Official 7 Day National Weather Service Forecast   (CAZ016)
Tonight: Mostly clear. Lows around 55. Southeast winds 10 to 15 mph with gusts to around 25 mph.

Wednesday: Sunny. Highs 80 to 85. Southeast winds up to 10 mph.

Wednesday Night: Clear. Lows 55 to 61. Southeast winds 10 to 15 mph.

Thursday: Sunny. Highs 82 to 87. Southeast winds up to 10 mph.

Thursday Night: Clear. Lows around 59. South winds 10 to 15 mph shifting to the east after midnight.

Friday: Sunny. Highs 87 to 92.

Friday Night: Clear. Lows around 61.

Saturday through Sunday: Clear. Highs 91 to 100. Lows around 63.

Sunday Night: Partly cloudy. Lows 64 to 70.

Monday: Mostly sunny. Highs 91 to 99.

Monday Night: Mostly cloudy. Lows 61 to 67.

Tuesday: Mostly sunny. Highs 85 to 93.
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.