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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: Oct 24 2014 at 7:36 AM PDTNext Issuance: Oct 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
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)
Tonight: Mostly clear in the evening and then mostly cloudy with a slight chance of rain after midnight. Lows around 55. Southeast winds 10 to 15 mph.

Saturday: Rain likely and a slight chance of thunderstorms in the morning and then rain showers likely and a chance of thunderstorms in the afternoon. Windy. Highs 64 to 70. South winds 15 to 30 mph with gusts to around 40 mph.

Saturday Night: Mostly cloudy. Rain showers likely and a chance of thunderstorms in the evening and then a chance of rain showers after midnight. Lows 47 to 53. South winds 10 to 20 mph. Gusts up to 30 mph in the evening.

Sunday: Mostly cloudy with a slight chance of rain showers in the morning and then mostly sunny in the afternoon. Highs around 67. Northwest winds up to 10 mph.

Sunday Night: Mostly clear. Lows 42 to 51. North winds around 10 mph.

Monday: Mostly sunny. Highs around 70.

Monday Night: Mostly clear. Lows 46 to 52.

Tuesday: Partly cloudy. Highs around 72.

Tuesday Night through Wednesday Night: Mostly cloudy with a slight chance of rain. Lows 50 to 57. Highs around 72.

Thursday: Partly cloudy with a slight chance of rain. Highs around 72.

Thursday Night: Mostly cloudy with a slight chance of rain. Lows around 54.

Friday: Mostly cloudy with a slight chance of rain showers. Highs around 68.
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.