CNRFC Mobile Logo

 

Short-Rng Pks

10D Prob

10 Accum

4x5D Prob

Mnth Prob

Seas Trnd

WY Trend

WY Accum

Multi-Yr Accum

Historical

Verification

Custom

Prev. Point

Next Point

Back to Points

Back to Home

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: Jan 08 2026 at 2:25 PM PST
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.
Short-Range Peak Exceedance Plot   Product Info.   CSV Ensemble Files (Data in kcfs): Forecast Group | CLAC1
Cursor readout:
Show:






What information is considered in this forecast?
Verification / Historical Plots
<-- Previous Forecast  Forecast Date:   Forecast Cycle:  
Select up to 2 thresholds to use to calculate exceedance probabilities.

Threshold 1:


Threshold 2:



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)
Tonight: Mostly clear. Lows 33 to 39. North winds 10 to 15 mph.

Friday: Areas of frost in the morning. Mostly sunny. Highs 48 to 54. North winds up to 10 mph with gusts to around 20 mph.

Friday Night: Mostly clear. Patchy frost after midnight. Lows around 35. Light winds.

Saturday: Areas of frost in the morning. Mostly cloudy. Highs around 51. Light winds.

Saturday Night: Mostly cloudy. Lows around 37. Light winds.

Sunday: Mostly cloudy. Highs 50 to 56.

Sunday Night: Mostly clear. Lows around 38.

Monday: Partly cloudy. Highs 51 to 59.

Monday Night: Mostly clear. Lows 38 to 44.

Tuesday: Partly cloudy. Highs 54 to 62.

Tuesday Night through Thursday: Mostly clear. Lows 41 to 49. Highs 57 to 67.

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.