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 01 2025 at 7:50 AM PDTNext Issuance: Jun 02 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:  06/01/2025 at 07:52 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  05/27/2025 at 08:00 AM PDT
# Maximum Observed Stage:                       1605.46 Feet
# Maximum Observed Flow:                        1031 cfs
#
# Earliest Date & Time of Maximum Forecast:     06/01/2025 at 08:00 AM PDT
# Maximum Forecast Stage:                       1605.30 Feet
# Maximum Forecast Flow:                        915 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  05/27/2025 07 AM PDT         1605.44           1016                Not Applicable
  05/27/2025 08 AM PDT         1605.46           1031         +      Not Applicable
  05/27/2025 09 AM PDT         1605.45           1023         -      Not Applicable
  05/27/2025 10 AM PDT         1605.44           1016         -      Not Applicable
  05/27/2025 11 AM PDT         1605.44           1016         0      Not Applicable
  05/27/2025 12 PM PDT         1605.44           1016         0      Not Applicable
  05/27/2025 01 PM PDT         1605.44           1016         0      Not Applicable
  05/27/2025 02 PM PDT         1605.44           1016         0      Not Applicable
  05/27/2025 03 PM PDT         1605.43           1009         -      Not Applicable
  05/27/2025 04 PM PDT         1605.42           1001         -      Not Applicable
  05/27/2025 05 PM PDT         1605.42           1001         0      Not Applicable
  05/27/2025 06 PM PDT         1605.41            994         -      Not Applicable
  05/27/2025 07 PM PDT         1605.39            980         -      Not Applicable
  05/27/2025 08 PM PDT         1605.39            980         0      Not Applicable
  05/27/2025 09 PM PDT         1605.38            972         -      Not Applicable
  05/27/2025 10 PM PDT         1605.38            972         0      Not Applicable
  05/27/2025 11 PM PDT         1605.38            972         0      Not Applicable
  05/28/2025 12 AM PDT         1605.38            972         0      Not Applicable
  05/28/2025 01 AM PDT         1605.37            965         -      Not Applicable
  05/28/2025 02 AM PDT         1605.39            980         +      Not Applicable
  05/28/2025 03 AM PDT         1605.38            972         -      Not Applicable
  05/28/2025 04 AM PDT         1605.41            994         +      Not Applicable
  05/28/2025 05 AM PDT         1605.41            994         0      Not Applicable
  05/28/2025 06 AM PDT         1605.42           1001         +      Not Applicable
  05/28/2025 07 AM PDT         1605.44           1016         +      Not Applicable
  05/28/2025 08 AM PDT         1605.45           1023         +      Not Applicable
  05/28/2025 09 AM PDT         1605.44           1016         -      Not Applicable
  05/28/2025 10 AM PDT         1605.44           1016         0      Not Applicable
  05/28/2025 11 AM PDT         1605.45           1023         +      Not Applicable
  05/28/2025 12 PM PDT         1605.45           1023         0      Not Applicable
  05/28/2025 01 PM PDT         1605.45           1023         0      Not Applicable
  05/28/2025 02 PM PDT         1605.45           1023         0      Not Applicable
  05/28/2025 03 PM PDT         1605.44           1016         -      Not Applicable
  05/28/2025 04 PM PDT         1605.45           1023         +      Not Applicable
  05/28/2025 05 PM PDT         1605.43           1009         -      Not Applicable
  05/28/2025 06 PM PDT         1605.42           1001         -      Not Applicable
  05/28/2025 07 PM PDT         1605.41            994         -      Not Applicable
  05/28/2025 08 PM PDT         1605.41            994         0      Not Applicable
  05/28/2025 09 PM PDT         1605.40            987         -      Not Applicable
  05/28/2025 10 PM PDT         1605.40            987         0      Not Applicable
  05/28/2025 11 PM PDT         1605.39            980         -      Not Applicable
  05/29/2025 12 AM PDT         1605.38            972         -      Not Applicable
  05/29/2025 01 AM PDT         1605.39            980         +      Not Applicable
  05/29/2025 02 AM PDT         1605.40            987         +      Not Applicable
  05/29/2025 03 AM PDT         1605.40            987         0      Not Applicable
  05/29/2025 04 AM PDT         1605.40            987         0      Not Applicable
  05/29/2025 05 AM PDT         1605.42           1001         +      Not Applicable
  05/29/2025 06 AM PDT         1605.43           1009         +      Not Applicable
  05/29/2025 07 AM PDT         1605.45           1023         +      Not Applicable
  05/29/2025 08 AM PDT         1605.43           1009         -      Not Applicable
  05/29/2025 09 AM PDT         1605.44           1016         +      Not Applicable
  05/29/2025 10 AM PDT         1605.44           1016         0      Not Applicable
  05/29/2025 11 AM PDT         1605.44           1016         0      Not Applicable
  05/29/2025 12 PM PDT         1605.43           1009         -      Not Applicable
  05/29/2025 01 PM PDT         1605.44           1016         +      Not Applicable
  05/29/2025 02 PM PDT         1605.43           1009         -      Not Applicable
  05/29/2025 03 PM PDT         1605.43           1009         0      Not Applicable
  05/29/2025 04 PM PDT         1605.42           1001         -      Not Applicable
  05/29/2025 05 PM PDT         1605.41            994         -      Not Applicable
  05/29/2025 06 PM PDT         1605.40            987         -      Not Applicable
  05/29/2025 07 PM PDT         1605.38            972         -      Not Applicable
  05/29/2025 08 PM PDT         1605.38            972         0      Not Applicable
  05/29/2025 09 PM PDT         1605.38            972         0      Not Applicable
  05/29/2025 10 PM PDT         1605.36            958         -      Not Applicable
  05/29/2025 11 PM PDT         1605.36            958         0      Not Applicable
  05/30/2025 12 AM PDT         1605.35            950         -      Not Applicable
  05/30/2025 01 AM PDT         1605.35            950         0      Not Applicable
  05/30/2025 02 AM PDT         1605.34            943         -      Not Applicable
  05/30/2025 03 AM PDT         1605.34            943         0      Not Applicable
  05/30/2025 04 AM PDT         1605.36            958         +      Not Applicable
  05/30/2025 05 AM PDT         1605.37            965         +      Not Applicable
  05/30/2025 06 AM PDT         1605.38            972         +      Not Applicable
  05/30/2025 07 AM PDT         1605.37            965         -      Not Applicable
  05/30/2025 08 AM PDT         1605.38            972         +      Not Applicable
  05/30/2025 09 AM PDT         1605.38            972         0      Not Applicable
  05/30/2025 10 AM PDT         1605.38            972         0      Not Applicable
  05/30/2025 11 AM PDT         1605.38            972         0      Not Applicable
  05/30/2025 12 PM PDT         1605.38            972         0      Not Applicable
  05/30/2025 01 PM PDT         1605.38            972         0      Not Applicable
  05/30/2025 02 PM PDT         1605.37            965         -      Not Applicable
  05/30/2025 03 PM PDT         1605.37            965         0      Not Applicable
  05/30/2025 04 PM PDT         1605.37            965         0      Not Applicable
  05/30/2025 05 PM PDT         1605.34            943         -      Not Applicable
  05/30/2025 06 PM PDT         1605.35            950         +      Not Applicable
  05/30/2025 07 PM PDT         1605.34            943         -      Not Applicable
  05/30/2025 08 PM PDT         1605.33            936         -      Not Applicable
  05/30/2025 09 PM PDT         1605.32            929         -      Not Applicable
  05/30/2025 10 PM PDT         1605.32            929         0      Not Applicable
  05/30/2025 11 PM PDT         1605.31            922         -      Not Applicable
  05/31/2025 12 AM PDT         1605.31            922         0      Not Applicable
  05/31/2025 01 AM PDT         1605.32            929         +      Not Applicable
  05/31/2025 02 AM PDT         1605.32            929         0      Not Applicable
  05/31/2025 03 AM PDT         1605.32            929         0      Not Applicable
  05/31/2025 04 AM PDT         1605.33            936         +      Not Applicable
  05/31/2025 05 AM PDT         1605.34            943         +      Not Applicable
  05/31/2025 06 AM PDT         1605.34            943         0      Not Applicable
  05/31/2025 07 AM PDT         1605.36            958         +      Not Applicable
  05/31/2025 08 AM PDT         1605.37            965         +      Not Applicable
  05/31/2025 09 AM PDT         1605.37            965         0      Not Applicable
  05/31/2025 10 AM PDT         1605.37            965         0      Not Applicable
  05/31/2025 11 AM PDT         1605.37            965         0      Not Applicable
  05/31/2025 12 PM PDT         1605.36            958         -      Not Applicable
  05/31/2025 01 PM PDT         1605.37            965         +      Not Applicable
  05/31/2025 02 PM PDT         1605.36            958         -      Not Applicable
  05/31/2025 03 PM PDT         1605.35            950         -      Not Applicable
  05/31/2025 04 PM PDT         1605.35            950         0      Not Applicable
  05/31/2025 05 PM PDT         1605.35            950         0      Not Applicable
  05/31/2025 06 PM PDT         1605.34            943         -      Not Applicable
  05/31/2025 07 PM PDT         1605.33            936         -      Not Applicable
  05/31/2025 08 PM PDT         1605.32            929         -      Not Applicable
  05/31/2025 09 PM PDT         1605.31            922         -      Not Applicable
  05/31/2025 10 PM PDT         1605.30            915         -      Not Applicable
  05/31/2025 11 PM PDT         1605.29            908         -      Not Applicable
  06/01/2025 12 AM PDT         1605.29            908         0      Not Applicable
  06/01/2025 01 AM PDT         1605.28            901         -      Not Applicable
  06/01/2025 02 AM PDT         1605.29            908         +      Not Applicable
  06/01/2025 03 AM PDT         1605.30            915         +      Not Applicable
  06/01/2025 04 AM PDT         1605.30            915         0      Not Applicable
  06/01/2025 05 AM PDT         1605.30            915         0      Not Applicable
  06/01/2025 06 AM PDT         1605.31            922         +      Not Applicable
  06/01/2025 07 AM PDT         1605.31            922         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  06/01/2025 08 AM PDT         1605.30            915                Not Applicable
  06/01/2025 09 AM PDT         1605.30            915         0      Not Applicable
  06/01/2025 10 AM PDT         1605.29            908         -      Not Applicable
  06/01/2025 11 AM PDT         1605.29            908         0      Not Applicable
  06/01/2025 12 PM PDT         1605.29            908         0      Not Applicable
  06/01/2025 01 PM PDT         1605.28            901         -      Not Applicable
  06/01/2025 02 PM PDT         1605.27            894         -      Not Applicable
  06/01/2025 03 PM PDT         1605.27            894         0      Not Applicable
  06/01/2025 04 PM PDT         1605.26            887         -      Not Applicable
  06/01/2025 05 PM PDT         1605.26            887         0      Not Applicable
  06/01/2025 06 PM PDT         1605.26            887         0      Not Applicable
  06/01/2025 07 PM PDT         1605.25            880         -      Not Applicable
  06/01/2025 08 PM PDT         1605.25            880         0      Not Applicable
  06/01/2025 09 PM PDT         1605.25            880         0      Not Applicable
  06/01/2025 10 PM PDT         1605.24            873         -      Not Applicable
  06/01/2025 11 PM PDT         1605.24            873         0      Not Applicable
  06/02/2025 12 AM PDT         1605.24            873         0      Not Applicable
  06/02/2025 01 AM PDT         1605.24            873         0      Not Applicable
  06/02/2025 02 AM PDT         1605.24            873         0      Not Applicable
  06/02/2025 03 AM PDT         1605.24            873         0      Not Applicable
  06/02/2025 04 AM PDT         1605.24            873         0      Not Applicable
  06/02/2025 05 AM PDT         1605.24            873         0      Not Applicable
  06/02/2025 06 AM PDT         1605.24            873         0      Not Applicable
  06/02/2025 07 AM PDT         1605.24            873         0      Not Applicable
  06/02/2025 08 AM PDT         1605.24            873         0      Not Applicable
  06/02/2025 09 AM PDT         1605.24            873         0      Not Applicable
  06/02/2025 10 AM PDT         1605.23            866         -      Not Applicable
  06/02/2025 11 AM PDT         1605.23            866         0      Not Applicable
  06/02/2025 12 PM PDT         1605.23            866         0      Not Applicable
  06/02/2025 01 PM PDT         1605.22            859         -      Not Applicable
  06/02/2025 02 PM PDT         1605.22            859         0      Not Applicable
  06/02/2025 03 PM PDT         1605.21            853         -      Not Applicable
  06/02/2025 04 PM PDT         1605.21            853         0      Not Applicable
  06/02/2025 05 PM PDT         1605.20            846         -      Not Applicable
  06/02/2025 06 PM PDT         1605.20            846         0      Not Applicable
  06/02/2025 07 PM PDT         1605.20            846         0      Not Applicable
  06/02/2025 08 PM PDT         1605.19            839         -      Not Applicable
  06/02/2025 09 PM PDT         1605.19            839         0      Not Applicable
  06/02/2025 10 PM PDT         1605.19            839         0      Not Applicable
  06/02/2025 11 PM PDT         1605.18            832         -      Not Applicable
  06/03/2025 12 AM PDT         1605.18            832         0      Not Applicable
  06/03/2025 01 AM PDT         1605.18            832         0      Not Applicable
  06/03/2025 02 AM PDT         1605.18            832         0      Not Applicable
  06/03/2025 03 AM PDT         1605.18            832         0      Not Applicable
  06/03/2025 04 AM PDT         1605.18            832         0      Not Applicable
  06/03/2025 05 AM PDT         1605.18            832         0      Not Applicable
  06/03/2025 06 AM PDT         1605.18            832         0      Not Applicable
  06/03/2025 07 AM PDT         1605.17            826         -      Not Applicable
  06/03/2025 08 AM PDT         1605.17            826         0      Not Applicable
  06/03/2025 09 AM PDT         1605.17            826         0      Not Applicable
  06/03/2025 10 AM PDT         1605.17            826         0      Not Applicable
  06/03/2025 11 AM PDT         1605.17            826         0      Not Applicable
  06/03/2025 12 PM PDT         1605.16            819         -      Not Applicable
  06/03/2025 01 PM PDT         1605.16            819         0      Not Applicable
  06/03/2025 02 PM PDT         1605.16            819         0      Not Applicable
  06/03/2025 03 PM PDT         1605.15            812         -      Not Applicable
  06/03/2025 04 PM PDT         1605.15            812         0      Not Applicable
  06/03/2025 05 PM PDT         1605.15            812         0      Not Applicable
  06/03/2025 06 PM PDT         1605.14            806         -      Not Applicable
  06/03/2025 07 PM PDT         1605.14            806         0      Not Applicable
  06/03/2025 08 PM PDT         1605.14            806         0      Not Applicable
  06/03/2025 09 PM PDT         1605.13            799         -      Not Applicable
  06/03/2025 10 PM PDT         1605.13            799         0      Not Applicable
  06/03/2025 11 PM PDT         1605.13            799         0      Not Applicable
  06/04/2025 12 AM PDT         1605.13            799         0      Not Applicable
  06/04/2025 01 AM PDT         1605.13            799         0      Not Applicable
  06/04/2025 02 AM PDT         1605.12            793         -      Not Applicable
  06/04/2025 03 AM PDT         1605.12            793         0      Not Applicable
  06/04/2025 04 AM PDT         1605.12            793         0      Not Applicable
  06/04/2025 05 AM PDT         1605.12            793         0      Not Applicable
  06/04/2025 06 AM PDT         1605.12            793         0      Not Applicable
  06/04/2025 07 AM PDT         1605.12            793         0      Not Applicable
  06/04/2025 08 AM PDT         1605.12            793         0      Not Applicable
  06/04/2025 09 AM PDT         1605.11            786         -      Not Applicable
  06/04/2025 10 AM PDT         1605.11            786         0      Not Applicable
  06/04/2025 11 AM PDT         1605.11            786         0      Not Applicable
  06/04/2025 12 PM PDT         1605.11            786         0      Not Applicable
  06/04/2025 01 PM PDT         1605.10            780         -      Not Applicable
  06/04/2025 02 PM PDT         1605.10            780         0      Not Applicable
  06/04/2025 03 PM PDT         1605.10            780         0      Not Applicable
  06/04/2025 04 PM PDT         1605.09            774         -      Not Applicable
  06/04/2025 05 PM PDT         1605.09            774         0      Not Applicable
  06/04/2025 06 PM PDT         1605.09            774         0      Not Applicable
  06/04/2025 07 PM PDT         1605.08            767         -      Not Applicable
  06/04/2025 08 PM PDT         1605.08            767         0      Not Applicable
  06/04/2025 09 PM PDT         1605.08            767         0      Not Applicable
  06/04/2025 10 PM PDT         1605.08            767         0      Not Applicable
  06/04/2025 11 PM PDT         1605.07            761         -      Not Applicable
  06/05/2025 12 AM PDT         1605.07            761         0      Not Applicable
  06/05/2025 01 AM PDT         1605.07            761         0      Not Applicable
  06/05/2025 02 AM PDT         1605.07            761         0      Not Applicable
  06/05/2025 03 AM PDT         1605.06            755         -      Not Applicable
  06/05/2025 04 AM PDT         1605.06            755         0      Not Applicable
  06/05/2025 05 AM PDT         1605.06            755         0      Not Applicable
  06/05/2025 06 AM PDT         1605.06            755         0      Not Applicable
  06/05/2025 07 AM PDT         1605.05            748         -      Not Applicable
  06/05/2025 08 AM PDT         1605.05            748         0      Not Applicable
  06/05/2025 09 AM PDT         1605.05            748         0      Not Applicable
  06/05/2025 10 AM PDT         1605.05            748         0      Not Applicable
  06/05/2025 11 AM PDT         1605.05            748         0      Not Applicable
  06/05/2025 12 PM PDT         1605.04            742         -      Not Applicable
  06/05/2025 01 PM PDT         1605.04            742         0      Not Applicable
  06/05/2025 02 PM PDT         1605.04            742         0      Not Applicable
  06/05/2025 03 PM PDT         1605.03            736         -      Not Applicable
  06/05/2025 04 PM PDT         1605.03            736         0      Not Applicable
  06/05/2025 05 PM PDT         1605.03            736         0      Not Applicable
  06/05/2025 06 PM PDT         1605.03            736         0      Not Applicable
  06/05/2025 07 PM PDT         1605.02            730         -      Not Applicable
  06/05/2025 08 PM PDT         1605.02            730         0      Not Applicable
  06/05/2025 09 PM PDT         1605.02            730         0      Not Applicable
  06/05/2025 10 PM PDT         1605.02            730         0      Not Applicable
  06/05/2025 11 PM PDT         1605.01            724         -      Not Applicable
  06/06/2025 12 AM PDT         1605.01            724         0      Not Applicable
  06/06/2025 01 AM PDT         1605.01            724         0      Not Applicable
  06/06/2025 02 AM PDT         1605.01            724         0      Not Applicable
  06/06/2025 03 AM PDT         1605.01            724         0      Not Applicable
  06/06/2025 04 AM PDT         1605.00            718         -      Not Applicable
  06/06/2025 05 AM PDT         1605.00            718         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.