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 - HAMILTON CITY (HAMC1)
Latitude: 39.75º NLongitude: 122.00º WElevation: 125 Feet
Location: Glenn County in CaliforniaBulletin Group: Upper SacramentoRiver Group: Upper Sacramento
Action/Monitor: 142.0 FeetMinor Flood: 147.0 FeetModerate Flood: 149.2 FeetMajor Flood: 150.2 Feet

Observed Data Credit
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Raw streamflow data is provided by the California Department of Water Resources.
View California Department of Water Resources Data for this station location.

Historical Stage/Flow Data
Water Year
Peak Discharge (cfs)
Stage (feet)
Date
 Most Recent 5 Years
2023
105,300
146.79
Mar 15, 2023
2022
47,500
137.98
Oct 25, 2021
2021
13,300
130.71
Jan 29, 2021
2020
28,100
134.20
Jan 27, 2020
2019
117,800
147.87
Feb 27, 2019
 Historical High Stage/Flow Events (Period of Record - January 1927 to Present) - Ranked by Flow
1986
160,900
150.53
Feb 18, 1986
1970
160,700
150.80
Jan 24, 1970
1983
159,600
150.77
Mar 1, 1983
1997
155,300
150.92
Jan 2, 1997
1995
--
150.65
Jan 10, 1995
 * Datum changed from USED to NAVD88 on 10/01/2019. The difference is -0.8 ft and must be applied to all data before date to convert to NAVD88
Location Photographs
ESRI™ Locator Map
Flood Impacts
147.2 FeetOverflow begins on the east bank of the river, from near Wilson Landing Road to Highway 32.
146.8 FeetWater at top of Irvine Finch boat ramp.
145.1 FeetWater inundates Phase 2A restoration area north of Hwy 32 bridge inside of levee; touches toe of levee.
144.0 FeetCounty Road 23 in Glenn County closes east of RD 2140 levee as a result of water on roadway.
137.7 FeetWest Sacramento Avenue and River Road north of Big Chico Creek flood 1.5 hours after the Hamilton City gage reaches 137.7-138.0 feet.
Official 7 Day National Weather Service Forecast   (CAZ016)
Tonight: Clear. Lows 31 to 39. Northwest winds 10 to 15 mph. Gusts up to 30 mph after midnight.

Sunday: Sunny. Highs around 56. North winds 10 to 20 mph with gusts to around 35 mph.

Sunday Night: Clear. Lows 30 to 36. Northwest winds 10 to 15 mph with gusts to around 30 mph.

Monday: Widespread frost in the morning. Mostly sunny. Highs around 55. North winds 10 to 15 mph with gusts to around 25 mph.

Monday Night: Mostly clear. Areas of frost after midnight. Lows 30 to 36. North winds up to 10 mph.

Tuesday: Mostly sunny. Widespread frost. Highs around 53.

Tuesday Night: Mostly cloudy with a chance of rain showers. Lows around 37.

Wednesday and Wednesday Night: Rain showers. Highs 46 to 52. Lows 36 to 44.

Thursday: Rain showers. Highs 49 to 55.

Thursday Night: Rain showers. Lows 39 to 47.

Friday: Mostly cloudy with a chance of rain showers. Highs 52 to 58.

Friday Night: Partly cloudy with a slight chance of rain showers. Lows 38 to 44.

Saturday: Mostly cloudy with a slight chance of rain showers. Highs around 57.
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.