National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

*** 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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MIDDLE FORK FEATHER RIVER - MERRIMAC (MRMC1)
Latitude: 39.70º NLongitude: 121.27º WElevation: 1560 Feet
Location: Butte County in CaliforniaBulletin Group: Lower SacramentoRiver Group: Feather Yuba
Issuance Time: Jun 16 2025 at 6:13 AM PDTNext Issuance: Jun 17 2025 at 9:00 AM PDT
Action/Monitor: N/A Minor Flood: N/A Moderate Flood: N/A Major Flood: N/A


# Tabular Observed and Forecast Hydrograph Information
#
# Location: Middle Fork Feather River - Merrimac (MRMC1)
#
# File Generation Time:  06/16/2025 at 06:14 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  06/11/2025 at 03:00 PM PDT
# Maximum Observed Stage:                       1604.82 Feet
# Maximum Observed Flow:                        613 cfs
#
# Earliest Date & Time of Maximum Forecast:     06/16/2025 at 03:00 PM PDT
# Maximum Forecast Stage:                       1604.59 Feet
# Maximum Forecast Flow:                        486 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  06/11/2025 06 AM PDT         1604.81            607                Not Applicable
  06/11/2025 07 AM PDT         1604.81            607         0      Not Applicable
  06/11/2025 08 AM PDT         1604.81            607         0      Not Applicable
  06/11/2025 09 AM PDT         1604.81            607         0      Not Applicable
  06/11/2025 10 AM PDT         1604.82            613         +      Not Applicable
  06/11/2025 11 AM PDT         1604.81            607         -      Not Applicable
  06/11/2025 12 PM PDT         1604.82            613         +      Not Applicable
  06/11/2025 01 PM PDT         1604.81            607         -      Not Applicable
  06/11/2025 02 PM PDT         1604.82            613         +      Not Applicable
  06/11/2025 03 PM PDT         1604.82            613         0      Not Applicable
  06/11/2025 04 PM PDT         1604.81            607         -      Not Applicable
  06/11/2025 05 PM PDT         1604.81            607         0      Not Applicable
  06/11/2025 06 PM PDT         1604.81            607         0      Not Applicable
  06/11/2025 07 PM PDT         1604.80            602         -      Not Applicable
  06/11/2025 08 PM PDT         1604.80            602         0      Not Applicable
  06/11/2025 09 PM PDT         1604.80            602         0      Not Applicable
  06/11/2025 10 PM PDT         1604.79            596         -      Not Applicable
  06/11/2025 11 PM PDT         1604.79            596         0      Not Applicable
  06/12/2025 12 AM PDT         1604.78            590         -      Not Applicable
  06/12/2025 01 AM PDT         1604.77            584         -      Not Applicable
  06/12/2025 02 AM PDT         1604.77            584         0      Not Applicable
  06/12/2025 03 AM PDT         1604.77            584         0      Not Applicable
  06/12/2025 04 AM PDT         1604.76            579         -      Not Applicable
  06/12/2025 05 AM PDT         1604.76            579         0      Not Applicable
  06/12/2025 06 AM PDT         1604.75            573         -      Not Applicable
  06/12/2025 07 AM PDT         1604.75            573         0      Not Applicable
  06/12/2025 08 AM PDT         1604.75            573         0      Not Applicable
  06/12/2025 09 AM PDT         1604.75            573         0      Not Applicable
  06/12/2025 10 AM PDT         1604.75            573         0      Not Applicable
  06/12/2025 11 AM PDT         1604.75            573         0      Not Applicable
  06/12/2025 12 PM PDT         1604.75            573         0      Not Applicable
  06/12/2025 01 PM PDT         1604.76            579         +      Not Applicable
  06/12/2025 02 PM PDT         1604.75            573         -      Not Applicable
  06/12/2025 03 PM PDT         1604.76            579         +      Not Applicable
  06/12/2025 04 PM PDT         1604.75            573         -      Not Applicable
  06/12/2025 05 PM PDT         1604.75            573         0      Not Applicable
  06/12/2025 06 PM PDT         1604.74            567         -      Not Applicable
  06/12/2025 07 PM PDT         1604.73            562         -      Not Applicable
  06/12/2025 08 PM PDT         1604.73            562         0      Not Applicable
  06/12/2025 09 PM PDT         1604.73            562         0      Not Applicable
  06/12/2025 10 PM PDT         1604.72            556         -      Not Applicable
  06/12/2025 11 PM PDT         1604.72            556         0      Not Applicable
  06/13/2025 12 AM PDT         1604.72            556         0      Not Applicable
  06/13/2025 01 AM PDT         1604.71            550         -      Not Applicable
  06/13/2025 02 AM PDT         1604.71            550         0      Not Applicable
  06/13/2025 03 AM PDT         1604.71            550         0      Not Applicable
  06/13/2025 04 AM PDT         1604.70            545         -      Not Applicable
  06/13/2025 05 AM PDT         1604.69            539         -      Not Applicable
  06/13/2025 06 AM PDT         1604.70            545         +      Not Applicable
  06/13/2025 07 AM PDT         1604.69            539         -      Not Applicable
  06/13/2025 08 AM PDT         1604.69            539         0      Not Applicable
  06/13/2025 09 AM PDT         1604.69            539         0      Not Applicable
  06/13/2025 10 AM PDT         1604.69            539         0      Not Applicable
  06/13/2025 11 AM PDT         1604.69            539         0      Not Applicable
  06/13/2025 12 PM PDT         1604.69            539         0      Not Applicable
  06/13/2025 01 PM PDT         1604.68            534         -      Not Applicable
  06/13/2025 02 PM PDT         1604.69            539         +      Not Applicable
  06/13/2025 03 PM PDT         1604.69            539         0      Not Applicable
  06/13/2025 04 PM PDT         1604.68            534         -      Not Applicable
  06/13/2025 05 PM PDT         1604.68            534         0      Not Applicable
  06/13/2025 06 PM PDT         1604.67            528         -      Not Applicable
  06/13/2025 07 PM PDT         1604.67            528         0      Not Applicable
  06/13/2025 08 PM PDT         1604.68            534         +      Not Applicable
  06/13/2025 09 PM PDT         1604.68            534         0      Not Applicable
  06/13/2025 10 PM PDT         1604.67            528         -      Not Applicable
  06/13/2025 11 PM PDT         1604.66            523         -      Not Applicable
  06/14/2025 12 AM PDT         1604.66            523         0      Not Applicable
  06/14/2025 01 AM PDT         1604.65            517         -      Not Applicable
  06/14/2025 02 AM PDT         1604.65            517         0      Not Applicable
  06/14/2025 03 AM PDT         1604.65            517         0      Not Applicable
  06/14/2025 04 AM PDT         1604.65            517         0      Not Applicable
  06/14/2025 05 AM PDT         1604.64            512         -      Not Applicable
  06/14/2025 06 AM PDT         1604.64            512         0      Not Applicable
  06/14/2025 07 AM PDT         1604.64            512         0      Not Applicable
  06/14/2025 08 AM PDT         1604.63            507         -      Not Applicable
  06/14/2025 09 AM PDT         1604.63            507         0      Not Applicable
  06/14/2025 10 AM PDT         1604.63            507         0      Not Applicable
  06/14/2025 11 AM PDT         1604.64            512         +      Not Applicable
  06/14/2025 12 PM PDT         1604.64            512         0      Not Applicable
  06/14/2025 01 PM PDT         1604.64            512         0      Not Applicable
  06/14/2025 02 PM PDT         1604.64            512         0      Not Applicable
  06/14/2025 03 PM PDT         1604.64            512         0      Not Applicable
  06/14/2025 04 PM PDT         1604.64            512         0      Not Applicable
  06/14/2025 05 PM PDT         1604.63            507         -      Not Applicable
  06/14/2025 06 PM PDT         1604.63            507         0      Not Applicable
  06/14/2025 07 PM PDT         1604.63            507         0      Not Applicable
  06/14/2025 08 PM PDT         1604.63            507         0      Not Applicable
  06/14/2025 09 PM PDT         1604.63            507         0      Not Applicable
  06/14/2025 10 PM PDT         1604.63            507         0      Not Applicable
  06/14/2025 11 PM PDT         1604.62            501         -      Not Applicable
  06/15/2025 12 AM PDT         1604.61            496         -      Not Applicable
  06/15/2025 01 AM PDT         1604.61            496         0      Not Applicable
  06/15/2025 02 AM PDT         1604.61            496         0      Not Applicable
  06/15/2025 03 AM PDT         1604.61            496         0      Not Applicable
  06/15/2025 04 AM PDT         1604.60            491         -      Not Applicable
  06/15/2025 05 AM PDT         1604.60            491         0      Not Applicable
  06/15/2025 06 AM PDT         1604.60            491         0      Not Applicable
  06/15/2025 07 AM PDT         1604.59            486         -      Not Applicable
  06/15/2025 08 AM PDT         1604.59            486         0      Not Applicable
  06/15/2025 09 AM PDT         1604.59            486         0      Not Applicable
  06/15/2025 10 AM PDT         1604.59            486         0      Not Applicable
  06/15/2025 11 AM PDT         1604.60            491         +      Not Applicable
  06/15/2025 12 PM PDT         1604.59            486         -      Not Applicable
  06/15/2025 01 PM PDT         1604.60            491         +      Not Applicable
  06/15/2025 02 PM PDT         1604.59            486         -      Not Applicable
  06/15/2025 03 PM PDT         1604.60            491         +      Not Applicable
  06/15/2025 04 PM PDT         1604.60            491         0      Not Applicable
  06/15/2025 05 PM PDT         1604.60            491         0      Not Applicable
  06/15/2025 06 PM PDT         1604.59            486         -      Not Applicable
  06/15/2025 07 PM PDT         1604.59            486         0      Not Applicable
  06/15/2025 08 PM PDT         1604.59            486         0      Not Applicable
  06/15/2025 09 PM PDT         1604.59            486         0      Not Applicable
  06/15/2025 10 PM PDT         1604.58            480         -      Not Applicable
  06/15/2025 11 PM PDT         1604.58            480         0      Not Applicable
  06/16/2025 12 AM PDT         1604.58            480         0      Not Applicable
  06/16/2025 01 AM PDT         1604.57            475         -      Not Applicable
  06/16/2025 02 AM PDT         1604.57            475         0      Not Applicable
  06/16/2025 03 AM PDT         1604.57            475         0      Not Applicable
  06/16/2025 04 AM PDT         1604.57            475         0      Not Applicable
  06/16/2025 05 AM PDT         1604.57            475         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  06/16/2025 06 AM PDT         1604.57            475                Not Applicable
  06/16/2025 07 AM PDT         1604.57            475         0      Not Applicable
  06/16/2025 08 AM PDT         1604.58            480         +      Not Applicable
  06/16/2025 09 AM PDT         1604.58            480         0      Not Applicable
  06/16/2025 10 AM PDT         1604.58            480         0      Not Applicable
  06/16/2025 11 AM PDT         1604.58            480         0      Not Applicable
  06/16/2025 12 PM PDT         1604.58            480         0      Not Applicable
  06/16/2025 01 PM PDT         1604.58            480         0      Not Applicable
  06/16/2025 02 PM PDT         1604.58            480         0      Not Applicable
  06/16/2025 03 PM PDT         1604.59            486         +      Not Applicable
  06/16/2025 04 PM PDT         1604.59            486         0      Not Applicable
  06/16/2025 05 PM PDT         1604.59            486         0      Not Applicable
  06/16/2025 06 PM PDT         1604.58            480         -      Not Applicable
  06/16/2025 07 PM PDT         1604.58            480         0      Not Applicable
  06/16/2025 08 PM PDT         1604.58            480         0      Not Applicable
  06/16/2025 09 PM PDT         1604.58            480         0      Not Applicable
  06/16/2025 10 PM PDT         1604.58            480         0      Not Applicable
  06/16/2025 11 PM PDT         1604.58            480         0      Not Applicable
  06/17/2025 12 AM PDT         1604.58            480         0      Not Applicable
  06/17/2025 01 AM PDT         1604.58            480         0      Not Applicable
  06/17/2025 02 AM PDT         1604.58            480         0      Not Applicable
  06/17/2025 03 AM PDT         1604.57            475         -      Not Applicable
  06/17/2025 04 AM PDT         1604.57            475         0      Not Applicable
  06/17/2025 05 AM PDT         1604.57            475         0      Not Applicable
  06/17/2025 06 AM PDT         1604.57            475         0      Not Applicable
  06/17/2025 07 AM PDT         1604.57            475         0      Not Applicable
  06/17/2025 08 AM PDT         1604.57            475         0      Not Applicable
  06/17/2025 09 AM PDT         1604.57            475         0      Not Applicable
  06/17/2025 10 AM PDT         1604.56            470         -      Not Applicable
  06/17/2025 11 AM PDT         1604.56            470         0      Not Applicable
  06/17/2025 12 PM PDT         1604.56            470         0      Not Applicable
  06/17/2025 01 PM PDT         1604.56            470         0      Not Applicable
  06/17/2025 02 PM PDT         1604.56            470         0      Not Applicable
  06/17/2025 03 PM PDT         1604.56            470         0      Not Applicable
  06/17/2025 04 PM PDT         1604.56            470         0      Not Applicable
  06/17/2025 05 PM PDT         1604.56            470         0      Not Applicable
  06/17/2025 06 PM PDT         1604.55            465         -      Not Applicable
  06/17/2025 07 PM PDT         1604.55            465         0      Not Applicable
  06/17/2025 08 PM PDT         1604.55            465         0      Not Applicable
  06/17/2025 09 PM PDT         1604.55            465         0      Not Applicable
  06/17/2025 10 PM PDT         1604.55            465         0      Not Applicable
  06/17/2025 11 PM PDT         1604.55            465         0      Not Applicable
  06/18/2025 12 AM PDT         1604.55            465         0      Not Applicable
  06/18/2025 01 AM PDT         1604.55            465         0      Not Applicable
  06/18/2025 02 AM PDT         1604.55            465         0      Not Applicable
  06/18/2025 03 AM PDT         1604.54            460         -      Not Applicable
  06/18/2025 04 AM PDT         1604.54            460         0      Not Applicable
  06/18/2025 05 AM PDT         1604.54            460         0      Not Applicable
  06/18/2025 06 AM PDT         1604.54            460         0      Not Applicable
  06/18/2025 07 AM PDT         1604.54            460         0      Not Applicable
  06/18/2025 08 AM PDT         1604.54            460         0      Not Applicable
  06/18/2025 09 AM PDT         1604.54            460         0      Not Applicable
  06/18/2025 10 AM PDT         1604.53            455         -      Not Applicable
  06/18/2025 11 AM PDT         1604.53            455         0      Not Applicable
  06/18/2025 12 PM PDT         1604.53            455         0      Not Applicable
  06/18/2025 01 PM PDT         1604.53            455         0      Not Applicable
  06/18/2025 02 PM PDT         1604.53            455         0      Not Applicable
  06/18/2025 03 PM PDT         1604.53            455         0      Not Applicable
  06/18/2025 04 PM PDT         1604.53            455         0      Not Applicable
  06/18/2025 05 PM PDT         1604.53            455         0      Not Applicable
  06/18/2025 06 PM PDT         1604.53            455         0      Not Applicable
  06/18/2025 07 PM PDT         1604.52            450         -      Not Applicable
  06/18/2025 08 PM PDT         1604.52            450         0      Not Applicable
  06/18/2025 09 PM PDT         1604.52            450         0      Not Applicable
  06/18/2025 10 PM PDT         1604.52            450         0      Not Applicable
  06/18/2025 11 PM PDT         1604.52            450         0      Not Applicable
  06/19/2025 12 AM PDT         1604.52            450         0      Not Applicable
  06/19/2025 01 AM PDT         1604.52            450         0      Not Applicable
  06/19/2025 02 AM PDT         1604.52            450         0      Not Applicable
  06/19/2025 03 AM PDT         1604.52            450         0      Not Applicable
  06/19/2025 04 AM PDT         1604.51            445         -      Not Applicable
  06/19/2025 05 AM PDT         1604.51            445         0      Not Applicable
  06/19/2025 06 AM PDT         1604.51            445         0      Not Applicable
  06/19/2025 07 AM PDT         1604.51            445         0      Not Applicable
  06/19/2025 08 AM PDT         1604.51            445         0      Not Applicable
  06/19/2025 09 AM PDT         1604.51            445         0      Not Applicable
  06/19/2025 10 AM PDT         1604.51            445         0      Not Applicable
  06/19/2025 11 AM PDT         1604.50            440         -      Not Applicable
  06/19/2025 12 PM PDT         1604.50            440         0      Not Applicable
  06/19/2025 01 PM PDT         1604.50            440         0      Not Applicable
  06/19/2025 02 PM PDT         1604.50            440         0      Not Applicable
  06/19/2025 03 PM PDT         1604.50            440         0      Not Applicable
  06/19/2025 04 PM PDT         1604.50            440         0      Not Applicable
  06/19/2025 05 PM PDT         1604.50            440         0      Not Applicable
  06/19/2025 06 PM PDT         1604.50            440         0      Not Applicable
  06/19/2025 07 PM PDT         1604.49            435         -      Not Applicable
  06/19/2025 08 PM PDT         1604.49            435         0      Not Applicable
  06/19/2025 09 PM PDT         1604.49            435         0      Not Applicable
  06/19/2025 10 PM PDT         1604.49            435         0      Not Applicable
  06/19/2025 11 PM PDT         1604.49            435         0      Not Applicable
  06/20/2025 12 AM PDT         1604.49            435         0      Not Applicable
  06/20/2025 01 AM PDT         1604.49            435         0      Not Applicable
  06/20/2025 02 AM PDT         1604.49            435         0      Not Applicable
  06/20/2025 03 AM PDT         1604.48            430         -      Not Applicable
  06/20/2025 04 AM PDT         1604.48            430         0      Not Applicable
  06/20/2025 05 AM PDT         1604.48            430         0      Not Applicable
  06/20/2025 06 AM PDT         1604.48            430         0      Not Applicable
  06/20/2025 07 AM PDT         1604.48            430         0      Not Applicable
  06/20/2025 08 AM PDT         1604.48            430         0      Not Applicable
  06/20/2025 09 AM PDT         1604.48            430         0      Not Applicable
  06/20/2025 10 AM PDT         1604.48            430         0      Not Applicable
  06/20/2025 11 AM PDT         1604.47            425         -      Not Applicable
  06/20/2025 12 PM PDT         1604.47            425         0      Not Applicable
  06/20/2025 01 PM PDT         1604.47            425         0      Not Applicable
  06/20/2025 02 PM PDT         1604.47            425         0      Not Applicable
  06/20/2025 03 PM PDT         1604.47            425         0      Not Applicable
  06/20/2025 04 PM PDT         1604.47            425         0      Not Applicable
  06/20/2025 05 PM PDT         1604.47            425         0      Not Applicable
  06/20/2025 06 PM PDT         1604.47            425         0      Not Applicable
  06/20/2025 07 PM PDT         1604.46            421         -      Not Applicable
  06/20/2025 08 PM PDT         1604.46            421         0      Not Applicable
  06/20/2025 09 PM PDT         1604.46            421         0      Not Applicable
  06/20/2025 10 PM PDT         1604.46            421         0      Not Applicable
  06/20/2025 11 PM PDT         1604.46            421         0      Not Applicable
  06/21/2025 12 AM PDT         1604.46            421         0      Not Applicable
  06/21/2025 01 AM PDT         1604.46            421         0      Not Applicable
  06/21/2025 02 AM PDT         1604.46            421         0      Not Applicable
  06/21/2025 03 AM PDT         1604.45            416         -      Not Applicable
  06/21/2025 04 AM PDT         1604.45            416         0      Not Applicable
  06/21/2025 05 AM PDT         1604.45            416         0      Not Applicable
#
# NOTE 1: Stages are rounded to the nearest hundredth (.01) of a foot.
# NOTE 2: Flows are rounded to the nearest (1) cfs.
# NOTE 3: Trends are determined using hourly change in unrounded stage and flow.
# NOTE 4: Maximum Values are determined using unrounded stage and flow.