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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: Mar 23 2017 at 1:47 PM PDTNext Issuance: Mar 24 2017 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)
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)
Tonight: Cloudy. A slight chance of rain in the evening, then rain likely after midnight. Lows 45 to 51. Southeast winds 10 to 15 mph.

Friday: Rain, windy. Highs around 56. Southeast winds 15 to 30 mph. Gusts up to 40 mph in the afternoon.

Friday Night: Mostly cloudy. A chance of rain in the evening, then a chance of rain showers after midnight. Lows 43 to 49. Southeast winds up to 15 mph. Gusts up to 30 mph in the evening.

Saturday: Mostly cloudy. A slight chance of rain showers in the morning. Highs around 63. Light winds.

Saturday Night: Mostly cloudy. Lows around 46. Light winds.

Sunday: Mostly cloudy with a chance of rain. Highs around 57.

Sunday Night: Rain. Lows 44 to 50.

Monday: Mostly cloudy with a chance of rain showers and a slight chance of thunderstorms. Highs around 63.

Monday Night: Partly cloudy with a slight chance of rain showers. Lows 43 to 49.

Tuesday and Tuesday Night: Partly cloudy. Highs around 70. Lows 43 to 52.

Wednesday: Mostly sunny. Highs around 73.

Wednesday Night: Mostly cloudy with a slight chance of rain showers. Lows around 49.

Thursday: Mostly sunny. Highs 64 to 69.
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.