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 - COLUSA WEIR (CLAC1)
Latitude: 39.24º NLongitude: 121.99º WElevation: 62 Feet
Location: Colusa County in CaliforniaRiver Group: Upper Sacramento
Issuance Time: Jan 16 2018 at 7:33 AM PSTNext Issuance: Jan 16 2018 at 3:00 PM PST
Monitor Stage: 61.8 FeetFlood Stage: 71.0 FeetDanger Stage: 72.0 Feet

Colusa 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
2016
23,033
67.14
Mar 14, 2016
2015
21,147
66.96
Dec 13, 2014
2014
0****
--
--
2013
13,400
66.10
Dec 3, 2012
2012
0****
--
--
 Historical High Stage/Flow Events (Period of Record - January 1911 to Present)
1940
--
70.60*
Mar 1, 1940
1983
81,500
68.96**
Mar 4, 1983
1997
71,000
68.85
Jan 3, 1997
1958
83,600
68.80***
Feb 21, 1958
1965
77,400
68.50
Jan 7, 1965
1943
--
68.30
Jan 24, 1943
 * Peak prior to regulation by Shasta Dam
 ** Peak after regulation by Shasta Dam
 *** Peak also occurred on Feb 26th
 **** No weir flow observed during the entire water year
Location Photographs
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ016)
Today: Mostly cloudy. A chance of rain showers in the morning. Highs around 58. Southeast winds up to 10 mph in the morning becoming light.

Tonight: Mostly cloudy. Lows 42 to 48. Light winds.

Wednesday: Mostly cloudy in the morning then becoming partly cloudy. Patchy fog in the morning. Highs around 59. Light winds.

Wednesday Night: Mostly cloudy. A chance of rain after midnight. Lows around 47. Southeast winds around 10 mph.

Thursday: Rain likely in the morning, then a chance of rain in the afternoon. Highs around 57. South winds 10 to 20 mph.

Thursday Night: Mostly cloudy with a chance of rain. Lows 39 to 45.

Friday: Mostly cloudy with a chance of rain showers. Highs around 53.

Friday Night: Mostly cloudy with a chance of rain showers. Lows 33 to 41.

Saturday: Mostly cloudy. Highs around 51.

Saturday Night: Mostly cloudy with a slight chance of rain. Lows 36 to 42.

Sunday and Sunday Night: Rain likely. Highs around 51. Lows 36 to 45.

Monday: Mostly cloudy with a chance of rain. Highs around 54.
Impacts - E19 Information
61.8 FeetColusa Weir crest elevation. Overflow begins into the Sutter Bypass.
74.8 FeetStages above 74.8 feet result in major flooding. 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.