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: May 28 2015 at 7:51 AM PDTNext Issuance: May 29 2015 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
Month:  
Day:  
Year:  
Cycle:  
To view other verification locations, use our Historical Graphical River Forecast Interface.
Historical Stage/Flow Data
Water Year
Peak Discharge (cfs)
Stage (feet)
Date
 Most Recent 5 Years
2013
13,400
66.10
Dec 3, 2012
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
 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 sunny. Highs 86 to 92. South winds up to 10 mph.

Tonight: Mostly clear. Lows 55 to 63. Southeast winds up to 10 mph.

Friday: Mostly sunny. Highs around 92. South winds up to 10 mph.

Friday Night: Mostly clear. Lows 54 to 62. Southeast winds around 10 mph.

Saturday: Mostly sunny. Highs 88 to 94. South winds up to 10 mph.

Saturday Night: Mostly clear. Lows 54 to 60.

Sunday: Mostly sunny. Highs around 84.

Sunday Night and Monday: Partly cloudy. Lows around 57. Highs 78 to 84.

Monday Night through Tuesday Night: Mostly clear. Lows around 57. Highs around 80.

Wednesday: Sunny. Highs around 84.
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.