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SACRAMENTO RIVER - COLUSA WEIR (CLAC1)
Latitude:
39.24º N		Longitude:
121.99º W		Elevation:
62 Feet
Location: Colusa County in CA
River Group: Upper Sacramento
Issuance Time: Jun 16 2025 at 6:21 AM PDT
Action/
Monitor:
60.9 Ft		Minor
Flood:
70.1 Ft		Moderate
Flood:
72.9 Ft		Major
Flood:
73.9 Ft
Please Note:Ensemble forecasts produced by CNRFC only consider meteorological uncertainty and do not account for hydrologic uncertainty.
Threshold Exceedance Plot                  Product Information        CSV Ensemble Files (Data in kcfs):  Forecast Group  |  CLAC1
Created with Highcharts 9.2.1Date/Time (Pacific)River Level (Feet)Flow (CFS)Probability of Threshold Exceedance​(%)Hourly River Level Threshold Exceedance Probabilities​SACRAMENTO RIVER - COLUSA WEIR (CLAC1)​Created: 06/16/2025 at 6:21 AM PDTJun 17​Tue​12amJun 18​Wed​12amJun 19​Thu​12amJun 20​Fri​12amJun 21​Sat​12amJun 16​Mon​12pmJun 17​Tue​12pmJun 18​Wed​12pmJun 19​Thu​12pmJun 20​Fri​12pm6062646668707203735,52120,48044,41080,140129,200025507510060.9 ft Action/Monitor Stage70.1 ft Minor Flood Stage
Created with Highcharts 9.2.1Duration of Peak River​Level Threshold​ExceedanceForecast Period:​06/16/2025 12 pm - 06/21/2025​12 pm​Period Length: 121 Hours2%​2%0 Hours​0 Hours5%​5%0 Hours​0 Hours10%​10%0 Hours​0 Hours25%​25%0 Hours​0 Hours50%​50%0 Hours​0 Hours75%​75%0 Hours​0 Hours90%​90%0 Hours​0 Hours95%​95%0 Hours​0 Hours98%​98%0 Hours​0 Hours
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What information is considered in this forecast?
Verification / Historical Plots
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Location Photographs

ESRI™ Locator Map
Flood Impacts
73.9 FeetStages above 73.9 feet result in major flooding. Top of levee.
60.9 FeetColusa Weir crest elevation. Overflow begins into the Sutter Bypass.
Official 7 Day National Weather Service Forecast   (CAZ016)
Today: Sunny. Highs around 89. Southeast winds up to 10 mph.

Tonight: Clear. Lows 55 to 61. Southeast winds up to 10 mph.

Tuesday: Sunny. Highs around 93. Light winds becoming west up to 10 mph in the afternoon.

Tuesday Night: Clear. Lows 60 to 66. South winds up to 10 mph in the evening becoming light.

Wednesday: Sunny. Highs around 98. Light winds becoming west around 10 mph in the afternoon.

Wednesday Night: Clear. Lows 60 to 66.

juneteenth: Sunny. Highs around 93.

Thursday Night through Friday Night: Clear. Lows around 55. Highs 87 to 93.

Saturday and Saturday Night: Clear. Highs around 81. Lows around 56.

Sunday: Sunny. Highs around 86.

Flood Impacts
73.9 FeetStages above 73.9 feet result in major flooding. Top of levee.
60.9 FeetColusa Weir crest elevation. Overflow begins into the Sutter Bypass.