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

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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: Dec 28 2025 at 8:15 AM PSTNext Issuance: Dec 29 2025 at 9:00 AM PST
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:  12/28/2025 at 08:17 AM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  12/24/2025 at 10:00 AM PST
# Maximum Observed Stage:                       1610.56 Feet
# Maximum Observed Flow:                        10541 cfs
#
# Earliest Date & Time of Maximum Forecast:     12/28/2025 at 08:00 AM PST
# Maximum Forecast Stage:                       1608.41 Feet
# Maximum Forecast Flow:                        5563 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  12/23/2025 08 AM PST         1609.05           6877                Not Applicable
  12/23/2025 09 AM PST         1608.94           6640         -      Not Applicable
  12/23/2025 10 AM PST         1608.87           6492         -      Not Applicable
  12/23/2025 11 AM PST         1608.74           6221         -      Not Applicable
  12/23/2025 12 PM PST         1608.65           6037         -      Not Applicable
  12/23/2025 01 PM PST         1608.59           5917         -      Not Applicable
  12/23/2025 02 PM PST         1608.50           5738         -      Not Applicable
  12/23/2025 03 PM PST         1608.48           5699         -      Not Applicable
  12/23/2025 04 PM PST         1608.33           5407         -      Not Applicable
  12/23/2025 05 PM PST         1608.29           5330         -      Not Applicable
  12/23/2025 06 PM PST         1608.22           5190         -      Not Applicable
  12/23/2025 07 PM PST         1608.18           5111         -      Not Applicable
  12/23/2025 08 PM PST         1608.08           4917         -      Not Applicable
  12/23/2025 09 PM PST         1608.08           4917         0      Not Applicable
  12/23/2025 10 PM PST         1608.05           4860         -      Not Applicable
  12/23/2025 11 PM PST         1608.08           4917         +      Not Applicable
  12/24/2025 12 AM PST         1608.10           4956         +      Not Applicable
  12/24/2025 01 AM PST         1608.23           5210         +      Not Applicable
  12/24/2025 02 AM PST         1608.39           5524         +      Not Applicable
  12/24/2025 03 AM PST         1608.58           5897         +      Not Applicable
  12/24/2025 04 AM PST         1608.76           6262         +      Not Applicable
  12/24/2025 05 AM PST         1608.87           6492         +      Not Applicable
  12/24/2025 06 AM PST         1609.18           7164         +      Not Applicable
  12/24/2025 07 AM PST         1609.55           8001         +      Not Applicable
  12/24/2025 08 AM PST         1610.05           9209         +      Not Applicable
  12/24/2025 09 AM PST         1610.45          10244         +      Not Applicable
  12/24/2025 10 AM PST         1610.56          10541         +      Not Applicable
  12/24/2025 11 AM PST         1610.50          10380         -      Not Applicable
  12/24/2025 12 PM PST         1610.55          10514         +      Not Applicable
  12/24/2025 01 PM PST         1610.44          10217         -      Not Applicable
  12/24/2025 02 PM PST         1610.41          10137         -      Not Applicable
  12/24/2025 03 PM PST         1610.44          10217         +      Not Applicable
  12/24/2025 04 PM PST         1610.46          10271         +      Not Applicable
  12/24/2025 05 PM PST         1610.44          10217         -      Not Applicable
  12/24/2025 06 PM PST         1610.44          10217         0      Not Applicable
  12/24/2025 07 PM PST         1610.31           9874         -      Not Applicable
  12/24/2025 08 PM PST         1610.18           9538         -      Not Applicable
  12/24/2025 09 PM PST         1610.09           9310         -      Not Applicable
  12/24/2025 10 PM PST         1609.90           8837         -      Not Applicable
  12/24/2025 11 PM PST         1609.82           8642         -      Not Applicable
  12/25/2025 12 AM PST         1609.76           8497         -      Not Applicable
  12/25/2025 01 AM PST         1609.82           8642         +      Not Applicable
  12/25/2025 02 AM PST         1609.82           8642         0      Not Applicable
  12/25/2025 03 AM PST         1609.79           8570         -      Not Applicable
  12/25/2025 04 AM PST         1609.75           8473         -      Not Applicable
  12/25/2025 05 AM PST         1609.78           8545         +      Not Applicable
  12/25/2025 06 AM PST         1609.81           8618         +      Not Applicable
  12/25/2025 07 AM PST         1610.05           9209         +      Not Applicable
  12/25/2025 08 AM PST         1610.28           9796         +      Not Applicable
  12/25/2025 09 AM PST         1610.32           9900         +      Not Applicable
  12/25/2025 10 AM PST         1610.24           9692         -      Not Applicable
  12/25/2025 11 AM PST         1610.21           9615         -      Not Applicable
  12/25/2025 12 PM PST         1610.19           9564         -      Not Applicable
  12/25/2025 01 PM PST         1610.17           9513         -      Not Applicable
  12/25/2025 02 PM PST         1610.14           9436         -      Not Applicable
  12/25/2025 03 PM PST         1610.20           9590         +      Not Applicable
  12/25/2025 04 PM PST         1610.28           9796         +      Not Applicable
  12/25/2025 05 PM PST         1610.34           9952         +      Not Applicable
  12/25/2025 06 PM PST         1610.30           9848         -      Not Applicable
  12/25/2025 07 PM PST         1610.23           9667         -      Not Applicable
  12/25/2025 08 PM PST         1610.17           9513         -      Not Applicable
  12/25/2025 09 PM PST         1610.30           9848         +      Not Applicable
  12/25/2025 10 PM PST         1610.29           9822         -      Not Applicable
  12/25/2025 11 PM PST         1610.38          10057         +      Not Applicable
  12/26/2025 12 AM PST         1610.44          10217         +      Not Applicable
  12/26/2025 01 AM PST         1610.46          10271         +      Not Applicable
  12/26/2025 02 AM PST         1610.40          10110         -      Not Applicable
  12/26/2025 03 AM PST         1610.34           9952         -      Not Applicable
  12/26/2025 04 AM PST         1610.25           9718         -      Not Applicable
  12/26/2025 05 AM PST         1610.20           9590         -      Not Applicable
  12/26/2025 06 AM PST         1610.14           9436         -      Not Applicable
  12/26/2025 07 AM PST         1610.05           9209         -      Not Applicable
  12/26/2025 08 AM PST         1610.05           9209         0      Not Applicable
  12/26/2025 09 AM PST         1609.94           8935         -      Not Applicable
  12/26/2025 10 AM PST         1609.85           8715         -      Not Applicable
  12/26/2025 11 AM PST         1609.78           8545         -      Not Applicable
  12/26/2025 12 PM PST         1609.61           8141         -      Not Applicable
  12/26/2025 01 PM PST         1609.54           7978         -      Not Applicable
  12/26/2025 02 PM PST         1609.48           7840         -      Not Applicable
  12/26/2025 03 PM PST         1609.41           7681         -      Not Applicable
  12/26/2025 04 PM PST         1609.38           7612         -      Not Applicable
  12/26/2025 05 PM PST         1609.37           7589         -      Not Applicable
  12/26/2025 06 PM PST         1609.37           7589         0      Not Applicable
  12/26/2025 07 PM PST         1609.32           7477         -      Not Applicable
  12/26/2025 08 PM PST         1609.25           7320         -      Not Applicable
  12/26/2025 09 PM PST         1609.22           7253         -      Not Applicable
  12/26/2025 10 PM PST         1609.17           7142         -      Not Applicable
  12/26/2025 11 PM PST         1609.17           7142         0      Not Applicable
  12/27/2025 12 AM PST         1609.14           7075         -      Not Applicable
  12/27/2025 01 AM PST         1609.09           6965         -      Not Applicable
  12/27/2025 02 AM PST         1609.07           6921         -      Not Applicable
  12/27/2025 03 AM PST         1609.10           6987         +      Not Applicable
  12/27/2025 04 AM PST         1609.06           6899         -      Not Applicable
  12/27/2025 05 AM PST         1609.01           6790         -      Not Applicable
  12/27/2025 06 AM PST         1608.93           6619         -      Not Applicable
  12/27/2025 07 AM PST         1608.89           6535         -      Not Applicable
  12/27/2025 08 AM PST         1608.88           6513         -      Not Applicable
  12/27/2025 09 AM PST         1608.85           6450         -      Not Applicable
  12/27/2025 10 AM PST         1608.82           6387         -      Not Applicable
  12/27/2025 11 AM PST         1608.76           6262         -      Not Applicable
  12/27/2025 12 PM PST         1608.80           6346         +      Not Applicable
  12/27/2025 01 PM PST         1608.79           6325         -      Not Applicable
  12/27/2025 02 PM PST         1608.75           6242         -      Not Applicable
  12/27/2025 03 PM PST         1608.77           6283         +      Not Applicable
  12/27/2025 04 PM PST         1608.73           6200         -      Not Applicable
  12/27/2025 05 PM PST         1608.75           6242         +      Not Applicable
  12/27/2025 06 PM PST         1608.72           6180         -      Not Applicable
  12/27/2025 07 PM PST         1608.69           6118         -      Not Applicable
  12/27/2025 08 PM PST         1608.65           6037         -      Not Applicable
  12/27/2025 09 PM PST         1608.67           6078         +      Not Applicable
  12/27/2025 10 PM PST         1608.64           6017         -      Not Applicable
  12/27/2025 11 PM PST         1608.63           5997         -      Not Applicable
  12/28/2025 12 AM PST         1608.61           5957         -      Not Applicable
  12/28/2025 01 AM PST         1608.59           5917         -      Not Applicable
  12/28/2025 02 AM PST         1608.64           6017         +      Not Applicable
  12/28/2025 03 AM PST         1608.56           5857         -      Not Applicable
  12/28/2025 04 AM PST         1608.54           5817         -      Not Applicable
  12/28/2025 05 AM PST         1608.54           5817         0      Not Applicable
  12/28/2025 06 AM PST         1608.50           5738         -      Not Applicable
  12/28/2025 07 AM PST         1608.46           5660         -      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  12/28/2025 08 AM PST         1608.41           5563                Not Applicable
  12/28/2025 09 AM PST         1608.37           5485         -      Not Applicable
  12/28/2025 10 AM PST         1608.33           5407         -      Not Applicable
  12/28/2025 11 AM PST         1608.28           5310         -      Not Applicable
  12/28/2025 12 PM PST         1608.24           5230         -      Not Applicable
  12/28/2025 01 PM PST         1608.20           5151         -      Not Applicable
  12/28/2025 02 PM PST         1608.15           5053         -      Not Applicable
  12/28/2025 03 PM PST         1608.11           4975         -      Not Applicable
  12/28/2025 04 PM PST         1608.07           4898         -      Not Applicable
  12/28/2025 05 PM PST         1608.03           4822         -      Not Applicable
  12/28/2025 06 PM PST         1607.99           4747         -      Not Applicable
  12/28/2025 07 PM PST         1607.96           4690         -      Not Applicable
  12/28/2025 08 PM PST         1607.92           4616         -      Not Applicable
  12/28/2025 09 PM PST         1607.88           4542         -      Not Applicable
  12/28/2025 10 PM PST         1607.84           4469         -      Not Applicable
  12/28/2025 11 PM PST         1607.79           4379         -      Not Applicable
  12/29/2025 12 AM PST         1607.75           4308         -      Not Applicable
  12/29/2025 01 AM PST         1607.71           4237         -      Not Applicable
  12/29/2025 02 AM PST         1607.68           4185         -      Not Applicable
  12/29/2025 03 AM PST         1607.66           4150         -      Not Applicable
  12/29/2025 04 AM PST         1607.63           4098         -      Not Applicable
  12/29/2025 05 AM PST         1607.61           4064         -      Not Applicable
  12/29/2025 06 AM PST         1607.59           4030         -      Not Applicable
  12/29/2025 07 AM PST         1607.56           3979         -      Not Applicable
  12/29/2025 08 AM PST         1607.53           3929         -      Not Applicable
  12/29/2025 09 AM PST         1607.51           3895         -      Not Applicable
  12/29/2025 10 AM PST         1607.48           3845         -      Not Applicable
  12/29/2025 11 AM PST         1607.46           3812         -      Not Applicable
  12/29/2025 12 PM PST         1607.43           3763         -      Not Applicable
  12/29/2025 01 PM PST         1607.41           3730         -      Not Applicable
  12/29/2025 02 PM PST         1607.39           3697         -      Not Applicable
  12/29/2025 03 PM PST         1607.36           3645         -      Not Applicable
  12/29/2025 04 PM PST         1607.34           3611         -      Not Applicable
  12/29/2025 05 PM PST         1607.33           3594         -      Not Applicable
  12/29/2025 06 PM PST         1607.31           3561         -      Not Applicable
  12/29/2025 07 PM PST         1607.29           3523         -      Not Applicable
  12/29/2025 08 PM PST         1607.28           3503         -      Not Applicable
  12/29/2025 09 PM PST         1607.26           3462         -      Not Applicable
  12/29/2025 10 PM PST         1607.24           3422         -      Not Applicable
  12/29/2025 11 PM PST         1607.23           3402         -      Not Applicable
  12/30/2025 12 AM PST         1607.21           3363         -      Not Applicable
  12/30/2025 01 AM PST         1607.19           3323         -      Not Applicable
  12/30/2025 02 AM PST         1607.18           3303         -      Not Applicable
  12/30/2025 03 AM PST         1607.16           3264         -      Not Applicable
  12/30/2025 04 AM PST         1607.14           3225         -      Not Applicable
  12/30/2025 05 AM PST         1607.12           3187         -      Not Applicable
  12/30/2025 06 AM PST         1607.11           3168         -      Not Applicable
  12/30/2025 07 AM PST         1607.09           3130         -      Not Applicable
  12/30/2025 08 AM PST         1607.07           3092         -      Not Applicable
  12/30/2025 09 AM PST         1607.05           3055         -      Not Applicable
  12/30/2025 10 AM PST         1607.03           3018         -      Not Applicable
  12/30/2025 11 AM PST         1607.02           2999         -      Not Applicable
  12/30/2025 12 PM PST         1607.00           2963         -      Not Applicable
  12/30/2025 01 PM PST         1606.98           2927         -      Not Applicable
  12/30/2025 02 PM PST         1606.96           2891         -      Not Applicable
  12/30/2025 03 PM PST         1606.94           2855         -      Not Applicable
  12/30/2025 04 PM PST         1606.92           2821         -      Not Applicable
  12/30/2025 05 PM PST         1606.91           2803         -      Not Applicable
  12/30/2025 06 PM PST         1606.90           2786         -      Not Applicable
  12/30/2025 07 PM PST         1606.89           2768         -      Not Applicable
  12/30/2025 08 PM PST         1606.87           2734         -      Not Applicable
  12/30/2025 09 PM PST         1606.86           2716         -      Not Applicable
  12/30/2025 10 PM PST         1606.85           2699         -      Not Applicable
  12/30/2025 11 PM PST         1606.84           2682         -      Not Applicable
  12/31/2025 12 AM PST         1606.82           2648         -      Not Applicable
  12/31/2025 01 AM PST         1606.81           2632         -      Not Applicable
  12/31/2025 02 AM PST         1606.80           2615         -      Not Applicable
  12/31/2025 03 AM PST         1606.79           2598         -      Not Applicable
  12/31/2025 04 AM PST         1606.78           2581         -      Not Applicable
  12/31/2025 05 AM PST         1606.77           2565         -      Not Applicable
  12/31/2025 06 AM PST         1606.76           2548         -      Not Applicable
  12/31/2025 07 AM PST         1606.75           2532         -      Not Applicable
  12/31/2025 08 AM PST         1606.74           2515         -      Not Applicable
  12/31/2025 09 AM PST         1606.73           2499         -      Not Applicable
  12/31/2025 10 AM PST         1606.72           2483         -      Not Applicable
  12/31/2025 11 AM PST         1606.71           2467         -      Not Applicable
  12/31/2025 12 PM PST         1606.70           2451         -      Not Applicable
  12/31/2025 01 PM PST         1606.69           2435         -      Not Applicable
  12/31/2025 02 PM PST         1606.68           2419         -      Not Applicable
  12/31/2025 03 PM PST         1606.67           2403         -      Not Applicable
  12/31/2025 04 PM PST         1606.66           2387         -      Not Applicable
  12/31/2025 05 PM PST         1606.66           2387         0      Not Applicable
  12/31/2025 06 PM PST         1606.66           2387         0      Not Applicable
  12/31/2025 07 PM PST         1606.65           2372         -      Not Applicable
  12/31/2025 08 PM PST         1606.65           2372         0      Not Applicable
  12/31/2025 09 PM PST         1606.64           2356         -      Not Applicable
  12/31/2025 10 PM PST         1606.64           2356         0      Not Applicable
  12/31/2025 11 PM PST         1606.64           2356         0      Not Applicable
  01/01/2026 12 AM PST         1606.65           2372         +      Not Applicable
  01/01/2026 01 AM PST         1606.65           2372         0      Not Applicable
  01/01/2026 02 AM PST         1606.65           2372         0      Not Applicable
  01/01/2026 03 AM PST         1606.66           2387         +      Not Applicable
  01/01/2026 04 AM PST         1606.66           2387         0      Not Applicable
  01/01/2026 05 AM PST         1606.68           2419         +      Not Applicable
  01/01/2026 06 AM PST         1606.70           2451         +      Not Applicable
  01/01/2026 07 AM PST         1606.71           2467         +      Not Applicable
  01/01/2026 08 AM PST         1606.73           2499         +      Not Applicable
  01/01/2026 09 AM PST         1606.75           2532         +      Not Applicable
  01/01/2026 10 AM PST         1606.77           2565         +      Not Applicable
  01/01/2026 11 AM PST         1606.82           2648         +      Not Applicable
  01/01/2026 12 PM PST         1606.87           2734         +      Not Applicable
  01/01/2026 01 PM PST         1606.91           2803         +      Not Applicable
  01/01/2026 02 PM PST         1606.96           2891         +      Not Applicable
  01/01/2026 03 PM PST         1607.01           2981         +      Not Applicable
  01/01/2026 04 PM PST         1607.05           3055         +      Not Applicable
  01/01/2026 05 PM PST         1607.11           3168         +      Not Applicable
  01/01/2026 06 PM PST         1607.16           3264         +      Not Applicable
  01/01/2026 07 PM PST         1607.21           3363         +      Not Applicable
  01/01/2026 08 PM PST         1607.26           3462         +      Not Applicable
  01/01/2026 09 PM PST         1607.31           3561         +      Not Applicable
  01/01/2026 10 PM PST         1607.37           3662         +      Not Applicable
  01/01/2026 11 PM PST         1607.43           3763         +      Not Applicable
  01/02/2026 12 AM PST         1607.48           3845         +      Not Applicable
  01/02/2026 01 AM PST         1607.54           3945         +      Not Applicable
  01/02/2026 02 AM PST         1607.59           4030         +      Not Applicable
  01/02/2026 03 AM PST         1607.64           4115         +      Not Applicable
  01/02/2026 04 AM PST         1607.69           4202         +      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.