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
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
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: Sunny, breezy. Highs around 83. Northwest winds 10 to 25 mph with gusts to around 40 mph.

Tonight: Clear. Lows 57 to 63. Northwest winds 10 to 15 mph with gusts to around 30 mph.

Tuesday: Sunny. Highs around 89. Northwest winds 10 to 15 mph with gusts to around 25 mph.

Tuesday Night: Clear. Lows 55 to 61. West winds up to 10 mph shifting to the northeast after midnight.

Juneteenth: Mostly sunny. Highs around 91. Light winds.

Wednesday Night: Mostly clear. Lows 56 to 62.

Thursday: Sunny. Highs 91 to 97.

Thursday Night and Friday: Clear. Lows 57 to 65. Highs 92 to 102.

Friday Night through Sunday: Clear. Lows 64 to 70. Highs 97 to 103.
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.