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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 21 2017 at 1:40 PM PSTNext Issuance: Jan 22 2017 at 9:00 AM 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
2015
21,147
66.96
Dec 13, 2014
2014
0****
--
--
2013
13,400
66.10
Dec 3, 2012
2012
0****
--
--
2011
49,388
67.83
Mar 22, 2011
 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: Rain showers in the morning, then rain showers likely and a slight chance of thunderstorms in the afternoon. Windy. Some thunderstorms may produce small hail in the afternoon. Highs around 52. Southeast winds 25 to 35 mph with gusts to around 60 mph becoming south 15 to 20 mph with gusts to around 30 mph in the afternoon.

Tonight: Mostly cloudy. Rain showers likely and a slight chance of thunderstorms in the evening, then a chance of rain showers after midnight. Some thunderstorms may produce small hail in the evening. Lows around 39. South winds 10 to 15 mph with gusts to around 25 mph.

Monday: Mostly cloudy with a chance of rain showers and a slight chance of thunderstorms. Highs around 50. Southeast winds 10 to 15 mph.

Monday Night: Mostly cloudy with a chance of rain showers. Lows around 37. Southeast winds 10 to 15 mph.

Tuesday: Mostly cloudy with a slight chance of rain showers in the morning, then mostly sunny in the afternoon. Highs around 52. Northwest winds 10 to 15 mph.

Tuesday Night: Mostly clear. Lows 31 to 37.

Wednesday: Mostly sunny. Highs around 51.

Wednesday Night: Partly cloudy. Lows around 38.

Thursday: Partly cloudy. Patchy dense fog. Highs around 53.

Thursday Night: Mostly clear. Patchy dense fog. Lows around 38.

Friday: Sunny. Patchy dense fog. Highs around 55.

Friday Night: Clear. Lows around 37.

Saturday: Mostly sunny. Highs around 57.
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.