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
Monitor Stage: 142.0 FeetFlood Stage: 147.0 Feet

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.

Historical Stage/Flow Data
Water Year
Peak Discharge (cfs)
Stage (feet)
Date
 Most Recent 5 Years
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
2018
61,600
140.70
Apr 8, 2018
 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
Impacts - E19 Information
137.7 FeetWest Sacramento Avenue and River Road north of Big Chico Creek flood on the east side of the river 1.5 hours after the Hamilton City gage reaches 138.5 and 138.8 feet.
144.0 FeetCounty Road 23 in Glenn County closes east of RD 2140 levee.
145.1 FeetWater inundates Phase 2A restoration area north of Hwy 32 bridge inside of levee; touches toe of levee.
146.8 FeetWater at top of Irvine Finch boat ramp.
147.2 FeetOverflow begins on the east bank of the river, from near Wilson Landing Road to Highway 32.
Official 7 Day National Weather Service Forecast   (CAZ016)
Today: A chance of rain showers in the morning, then rain showers in the afternoon. Windy. Highs 51 to 58. South winds 20 to 30 mph with gusts to around 45 mph.

Tonight: Rain showers and a slight chance of thunderstorms in the evening, then rain showers likely after midnight. Windy. Lows 38 to 44. South winds 25 to 35 mph with gusts to around 45 mph.

Saturday: Mostly cloudy. A chance of rain showers in the morning, then rain showers and a slight chance of thunderstorms in the afternoon. Breezy. Highs 48 to 53. South winds 15 to 25 mph with gusts to around 35 mph.

Saturday Night: Mostly cloudy. Rain showers likely and a slight chance of thunderstorms in the evening, then a chance of rain showers after midnight. Lows 35 to 40. South winds 10 to 20 mph with gusts to around 30 mph.

Sunday: Mostly cloudy with a chance of rain showers. Highs 50 to 55. South winds 10 to 15 mph with gusts to around 25 mph.

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

Monday: Partly cloudy with a slight chance of rain showers. Highs 52 to 58.

Monday Night through Wednesday: Mostly cloudy with a chance of rain showers. Lows around 42. Highs 53 to 59.

Wednesday Night: Partly cloudy with a slight chance of rain showers. Lows around 40.

Thursday: Mostly sunny. Highs 56 to 61.
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.