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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: Apr 24 2014 at 7:33 AM PDTNext Issuance: Apr 25 2014 at 9:00 AM PDT
Monitor Stage: 61.8 FeetFlood Stage: 71.0 FeetDanger Stage: 72.0 Feet

Colusa Weir Location - Sacramento River Channel Stage/Flow (Estimated)
Verification - Historical Graphical RVF
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Year:  
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Historical Stage/Flow Data
Water Year
Peak Discharge (cfs)
Stage (feet)
Date
 Most Recent 5 Years
2012
0****
--
--
2011
49,388
67.83
Mar 22, 2011
2010
30,554
66.64
Jan 27, 2010
2009
7,929
64.41
Mar 3, 2009
2008
15,909
65.39
Jan 27, 2008
 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
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Official 7 Day National Weather Service Forecast   (CAZ016)
Today: Mostly cloudy. Highs 71 to 77. South winds up to 10 mph.

Tonight: Cloudy with a chance of rain. Lows around 51. South winds 10 to 15 mph.

Friday: Numerous rain showers and a slight chance of thunderstorms in the morning and then numerous rain showers and isolated thunderstorms in the afternoon. Cooler. Some thunderstorms may produce small hail in the afternoon. Highs 57 to 63. Southeast winds 10 to 15 mph with gusts to around 25 mph.

Friday Night: Mostly cloudy with a chance of rain showers in the evening and then mostly clear after midnight. Lows around 43. Northwest winds up to 10 mph.

Saturday: Partly cloudy in the morning then becoming mostly cloudy. Highs 62 to 68. Light winds.

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

Sunday: Mostly cloudy with a slight chance of rain showers. Highs 66 to 72.

Sunday Night: Partly cloudy. Lows around 49.

Monday: Mostly sunny. Warmer. Highs 74 to 80.

Monday Night through Tuesday Night: Clear. Lows 50 to 60. Highs 77 to 87.

Wednesday: Mostly sunny. Highs 85 to 91.
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.

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.