CNRFC - Ensemble Products

*** IMPORTANT *** Week of June 16 - Website Data Outage - Due to a major computer upgrade the week of June 16, nearly all data on the CNRFC web site will not be updated. We anticipate the down time to be approximately 4 days. The latest deterministic hydrologic forecasts for official forecast points will continue to be available at the National Water Prediction Service during this time.

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RUBICON RIVER - HELL HOLE RESERVOIR (HLLC1)

Latitude: 39.07º N	Longitude: 120.41º W	Elevation: 4850 Feet
Location: Placer County in California		Bulletin Group: Lower Sacramento		River Group: American

Issuance Time:

Jun 07, 2025 at 7:54 AM PDT

Please Note:

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

Flow data on this product are unregulated / full natural flow.

2025 Water Year Trend Plot

Tabular View | Select a Different Water Year:

Text Products (RNOHFSOSV and RNOHFSWYV)

Raw ESP Water Year Streamflow Volumes Tracker
Water Year Streamflow Volume Accumulation Forecast

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Official 7 Day National Weather Service Forecast (CAZ069)

Tonight: Mostly clear. A slight chance of showers and thunderstorms early in the evening. Lows 47 to 62 higher elevations and 58 to 69 lower elevations. Prevailing northwest winds up to 10 mph in the evening becoming light.

Sunday: Sunny in the morning, then partly cloudy with a slight chance of showers and thunderstorms in the afternoon. Highs 70 to 85 higher elevations and 80 to 90 lower elevations. Light winds becoming west up to 10 mph in the afternoon.

Sunday Night: Mostly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows 48 to 63 higher elevations and 59 to 71 lower elevations. Prevailing west winds up to 10 mph shifting to the northeast after midnight.

Monday: Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs 71 to 86 higher elevations and 82 to 92 lower elevations. Light winds becoming west up to 10 mph in the afternoon.

Monday Night: Mostly clear. Lows 49 to 64 higher elevations and 60 to 72 lower elevations. Prevailing west winds up to 10 mph in the evening becoming light.

Tuesday: Sunny. Highs 73 to 88.

Tuesday Night: Mostly clear. Cooler. Lows 48 to 63.

Wednesday through Saturday: Clear. Highs 66 to 81. Lows 45 to 60.

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