CNRFC Ensemble Plot for NHGC1

Short-Rng Pks	10D Prob	10 Accum
4x5D Prob	Mnth Prob	Seas Trnd
WY Trend	WY Accum	Multi-Yr Accum
Historical	Verification	Custom

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CALAVERAS RIVER - NEW HOGAN RESERVOIR (NHGC1)

Latitude:
38.16º N

Longitude:
120.81º W

Elevation:
554 Feet

Location: Calaveras County in CA

River Group: San Joaquin

Issuance Time:

Jan 09 2026 at 1:53 PM PST

Please Note:

Ensemble forecasts produced by CNRFC only consider meteorological uncertainty and do not account for hydrologic uncertainty.

10-Day Accumulated Volume Plot

Tabular 10-Day Streamflow Volume Accumulation (1000s of Acre-Feet) Data Updated: Jan 09 2026 at 1:58 PM PST
Prob	Jan 10	Jan 11	Jan 12	Jan 13	Jan 14
10% (Max)	0.6	1.1	1.5	1.8	2.2
25%	0.6	1.1	1.5	1.8	2.2
50% (Prob)	0.6	1.1	1.5	1.8	2.2
75%	0.6	1.1	1.5	1.8	2.2
90% (Min)	0.6	1.1	1.5	1.8	2.2
RFC FCST	0.6	1.1	1.5	1.8	2.2
Prob	Jan 15	Jan 16	Jan 17	Jan 18	Jan 19
10% (Max)	2.5	2.8	3.2	3.5	3.9
25%	2.5	2.8	3.2	3.5	3.8
50% (Prob)	2.5	2.8	3.2	3.5	3.8
75%	2.5	2.8	3.2	3.5	3.8
90% (Min)	2.5	2.8	3.2	3.5	3.8

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Official 7 Day National Weather Service Forecast (CAZ067)

Tonight: Clear. Areas of frost late in the night. Lows 32 to 38. Light winds.

Saturday: Mostly sunny in the morning then becoming partly cloudy. Areas of frost in the morning. Highs 51 to 57. Light winds.

Saturday Night: Mostly cloudy. Lows 35 to 43. Light winds.

Sunday: Mostly cloudy in the morning then becoming mostly sunny. Areas of fog and locally dense in the morning. Highs 51 to 61. Light winds.

Sunday Night: Mostly clear. Lows 35 to 43. Light winds.

Monday: Mostly sunny. Highs 52 to 64.

Monday Night: Clear. Lows 39 to 47.

Tuesday: Sunny. Highs 56 to 68.

Tuesday Night: Mostly clear. Lows 40 to 50.

Wednesday through Friday: Clear. Highs 58 to 70. Lows 40 to 51.