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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 19 2014 at 7:21 AM PDTNext Issuance: Oct 20 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)
Today: Mostly cloudy. A chance of rain in the morning and then rain showers likely in the afternoon. Cooler. Highs around 70. South winds 10 to 15 mph with gusts to around 25 mph.

Tonight: Mostly cloudy. A chance of rain showers and a slight chance of thunderstorms in the evening and then a slight chance of rain showers after midnight. Lows 47 to 53. South winds around 10 mph.

Tuesday: Mostly cloudy in the morning then clearing. Highs around 70. Light winds.

Tuesday Night: Partly cloudy. Lows 48 to 54. North winds up to 10 mph.

Wednesday: Partly cloudy. Highs around 74. Light winds.

Wednesday Night: Mostly cloudy. Lows 53 to 59.

Thursday: Mostly cloudy with a slight chance of rain showers. Highs 71 to 76.

Thursday Night: Mostly cloudy with a slight chance of rain showers. Lows 52 to 58.

Friday and Friday Night: Mostly cloudy with a slight chance of rain. Highs around 73. Lows 52 to 58.

Saturday: Mostly cloudy with a chance of rain. Highs around 71.

Saturday Night: Partly cloudy with a slight chance of rain. Lows 49 to 55.

Sunday: Partly cloudy. Highs around 71.
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.