National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service
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TRINITY RIVER - HOOPA (HOOC1)
Latitude: 41.05º NLongitude: 123.68º WElevation: 333 Feet
Location: Humboldt County in CaliforniaRiver Group: North Coast
Monitor Stage: 44.0 FeetFlood Stage: 48.0 Feet

Observed Data Credit
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Raw streamflow data is provided by the US Geological Survey (USGS).
View USGS Data for this station location.

Historical Stage/Flow Data
Water Year
Peak Discharge (cfs)
Stage (feet)
Date
 Most Recent 5 Years
2015*
58,200
31.59
Feb 7, 2015
2014*
23,400
22.92
Mar 10, 2014
2013*
25,100
23.69
Dec 2, 2012
2012*
41,600
27.94
Mar 30, 2012
2011*
30,700
25.24
Dec 29, 2010
 Historical High Stage/Flow Events (Period of Record - Oct 1931 to Present)**
1965*
231,000
57.00
Dec 22, 1964
1956
190,000
36.90
Dec 22, 1955
1974*
145,000
45.98
Jan 16, 1974
1983*
122,000
43.16
Jan 27, 1983
1997*
122,000
42.97
Jan 01, 1997
1986*
116,000
42.43
Feb 18, 1986
 * Discharge affected by regulation or diversion
 ** Most recent continuous record back to Oct 1931 with segmented periods back to Oct 1911
Location Photographs
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ105)
Today: Rain in the morning, then rain showers and snow showers likely in the afternoon. Windy. Snow level 4500 to 5000 feet. Snow accumulations of 2 to 4 inches. Highs 44 to 54. Southeast wind 20 to 30 mph in the morning.

Tonight: Mostly cloudy. Slight chance of thunderstorms in the evening. Chance of rain showers through the night. Chance of snow showers overnight. Snow level 4000 to 4500 feet. Lows 35 to 45.

Saturday: Mostly cloudy. Chance of rain showers in the morning. Slight chance of snow showers through the day. Slight chance of rain showers in the afternoon. Snow level 3500 to 4000 feet. Highs 43 to 53.

Saturday Night: Mostly cloudy. Slight chance of rain and snow. Snow level 3500 to 4000 feet. Lows 34 to 44.

Sunday: Rain and snow. Snow level 3500 feet rising to 4500 feet in the afternoon. Highs 43 to 53.

Sunday Night: Rain showers. Lows 34 to 44.

Monday: Rain showers and snow showers likely. Highs 43 to 53.

Monday Night: Mostly cloudy. Slight chance of rain showers and snow showers. Lows 32 to 42.

Tuesday: Mostly cloudy. Highs 49 to 59.

Tuesday Night: Mostly cloudy. Slight chance of rain showers. Lows 36 to 46.

Wednesday: Rain showers likely. Highs 49 to 59.

Wednesday Night: Mostly cloudy. Chance of rain showers. Lows 32 to 42.

Thursday: Partly cloudy. Slight chance of rain showers and snow showers. Highs 46 to 56.
Impacts - E19 Information
44.0 FeetMinor flooding of the lowest lying areas may occur.
46.0 FeetFlooding of many low-lying areas near the river is likely. Minor flooding may occur over Highway 96 between Willow Creek and Hoopa.
48.0 FeetConsiderable flooding of low-lying areas adjacent to the river including Highway 96 is likely. Significant damage to structures in these areas is possible.
51.0 FeetExtensive flooding of all low-lying areas adjacent to the river including Highway 96 both north and south of Hoopa is likely. Significant damage to structures in these areas is possible.
53.0 FeetExtensive flooding of all low-lying areas adjacent to the river, including Highway 96 north and south of Hoopa. Significant damage to structures in these areas likely.
55.0 FeetExtensive and severe flooding between Willow Creek and Weitchpec and flooding of many homes and businesses in the valley areas. Expect closure of Highway 96 between Willow Creek and Weitchpec.
57.0 FeetSevere flooding of roads, bridges and structures in and around low areas of the river. Many road closures are likely including Highway 96 at several locations between Willow Creek and Weitchpec. Many homes and businesses in valley areas will be inundated.
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 Eureka 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.