FEATHER RIVER - GRIDLEY (GRIC1)
Latitude: 39.37º NLongitude: 121.65º WElevation: 92 FeetForecast Type: Official Location
Location: Butte County in CaliforniaBulletin Group: Lower SacramentoRiver Group: Feather Yuba
Issuance Time: Mar 18 2026 at 1:00 PM PDTNext Issuance: Mar 19 2026 at 9:00 AM PDT
Action/Monitor: 94.0 FeetMinor Flood: 103.0 FeetModerate Flood: 105.6 FeetMajor Flood: 106.6 Feet

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Feather River - Gridley (GRIC1)
#
# File Generation Time:  03/18/2026 at 01:00 PM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  03/13/2026 at 10:00 PM PDT
# Maximum Observed Stage:                       75.69 Feet
# Maximum Observed Flow:                        6638 cfs
#
# Earliest Date & Time of Maximum Forecast:     03/20/2026 at 08:00 PM PDT
# Maximum Forecast Stage:                       74.90 Feet
# Maximum Forecast Flow:                        5118 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  03/13/2026 01 PM PDT           75.69           6638                        Normal
  03/13/2026 02 PM PDT           75.66           6577         -              Normal
  03/13/2026 03 PM PDT           75.65           6557         -              Normal
  03/13/2026 04 PM PDT           75.68           6618         +              Normal
  03/13/2026 05 PM PDT           75.69           6638         +              Normal
  03/13/2026 06 PM PDT           75.67           6597         -              Normal
  03/13/2026 07 PM PDT           75.68           6618         +              Normal
  03/13/2026 08 PM PDT           75.69           6638         +              Normal
  03/13/2026 09 PM PDT           75.68           6618         -              Normal
  03/13/2026 10 PM PDT           75.69           6638         +              Normal
  03/13/2026 11 PM PDT           75.68           6618         -              Normal
  03/14/2026 12 AM PDT           75.68           6618         0              Normal
  03/14/2026 01 AM PDT           75.67           6597         -              Normal
  03/14/2026 02 AM PDT           75.67           6597         0              Normal
  03/14/2026 03 AM PDT           75.68           6618         +              Normal
  03/14/2026 04 AM PDT           75.67           6597         -              Normal
  03/14/2026 05 AM PDT           75.68           6618         +              Normal
  03/14/2026 06 AM PDT           75.67           6597         -              Normal
  03/14/2026 07 AM PDT           75.67           6597         0              Normal
  03/14/2026 08 AM PDT           75.68           6618         +              Normal
  03/14/2026 09 AM PDT           75.67           6597         -              Normal
  03/14/2026 10 AM PDT           75.67           6597         0              Normal
  03/14/2026 11 AM PDT           75.67           6597         0              Normal
  03/14/2026 12 PM PDT           75.67           6597         0              Normal
  03/14/2026 01 PM PDT           75.67           6597         0              Normal
  03/14/2026 02 PM PDT           75.62           6496         -              Normal
  03/14/2026 03 PM PDT           75.53           6315         -              Normal
  03/14/2026 04 PM PDT           75.48           6216         -              Normal
  03/14/2026 05 PM PDT           75.44           6138         -              Normal
  03/14/2026 06 PM PDT           75.44           6138         0              Normal
  03/14/2026 07 PM PDT           75.46           6177         +              Normal
  03/14/2026 08 PM PDT           75.45           6157         -              Normal
  03/14/2026 09 PM PDT           75.42           6099         -              Normal
  03/14/2026 10 PM PDT           75.44           6138         +              Normal
  03/14/2026 11 PM PDT           75.44           6138         0              Normal
  03/15/2026 12 AM PDT           75.43           6118         -              Normal
  03/15/2026 01 AM PDT           75.44           6138         +              Normal
  03/15/2026 02 AM PDT           75.43           6118         -              Normal
  03/15/2026 03 AM PDT           75.44           6138         +              Normal
  03/15/2026 04 AM PDT           75.43           6118         -              Normal
  03/15/2026 05 AM PDT           75.43           6118         0              Normal
  03/15/2026 06 AM PDT           75.41           6079         -              Normal
  03/15/2026 07 AM PDT           75.43           6118         +              Normal
  03/15/2026 08 AM PDT           75.42           6099         -              Normal
  03/15/2026 09 AM PDT           75.42           6099         0              Normal
  03/15/2026 10 AM PDT           75.43           6118         +              Normal
  03/15/2026 11 AM PDT           75.42           6099         -              Normal
  03/15/2026 12 PM PDT           75.43           6118         +              Normal
  03/15/2026 01 PM PDT           75.43           6118         0              Normal
  03/15/2026 02 PM PDT           75.41           6079         -              Normal
  03/15/2026 03 PM PDT           75.43           6118         +              Normal
  03/15/2026 04 PM PDT           75.42           6099         -              Normal
  03/15/2026 05 PM PDT           75.43           6118         +              Normal
  03/15/2026 06 PM PDT           75.42           6099         -              Normal
  03/15/2026 07 PM PDT           75.44           6138         +              Normal
  03/15/2026 08 PM PDT           75.43           6118         -              Normal
  03/15/2026 09 PM PDT           75.42           6099         -              Normal
  03/15/2026 10 PM PDT           75.44           6138         +              Normal
  03/15/2026 11 PM PDT           75.43           6118         -              Normal
  03/16/2026 12 AM PDT           75.45           6157         +              Normal
  03/16/2026 01 AM PDT           75.44           6138         -              Normal
  03/16/2026 02 AM PDT           75.43           6118         -              Normal
  03/16/2026 03 AM PDT           75.41           6079         -              Normal
  03/16/2026 04 AM PDT           75.44           6138         +              Normal
  03/16/2026 05 AM PDT           75.43           6118         -              Normal
  03/16/2026 06 AM PDT           75.43           6118         0              Normal
  03/16/2026 07 AM PDT           75.44           6138         +              Normal
  03/16/2026 08 AM PDT           75.43           6118         -              Normal
  03/16/2026 09 AM PDT           75.43           6118         0              Normal
  03/16/2026 10 AM PDT           75.42           6099         -              Normal
  03/16/2026 11 AM PDT           75.43           6118         +              Normal
  03/16/2026 12 PM PDT           75.42           6099         -              Normal
  03/16/2026 01 PM PDT           75.41           6079         -              Normal
  03/16/2026 02 PM PDT           75.42           6099         +              Normal
  03/16/2026 03 PM PDT           75.39           6040         -              Normal
  03/16/2026 04 PM PDT           75.40           6060         +              Normal
  03/16/2026 05 PM PDT           75.40           6060         0              Normal
  03/16/2026 06 PM PDT           75.41           6079         +              Normal
  03/16/2026 07 PM PDT           75.43           6118         +              Normal
  03/16/2026 08 PM PDT           75.43           6118         0              Normal
  03/16/2026 09 PM PDT           75.42           6099         -              Normal
  03/16/2026 10 PM PDT           75.41           6079         -              Normal
  03/16/2026 11 PM PDT           75.42           6099         +              Normal
  03/17/2026 12 AM PDT           75.43           6118         +              Normal
  03/17/2026 01 AM PDT           75.42           6099         -              Normal
  03/17/2026 02 AM PDT           75.42           6099         0              Normal
  03/17/2026 03 AM PDT           75.43           6118         +              Normal
  03/17/2026 04 AM PDT           75.42           6099         -              Normal
  03/17/2026 05 AM PDT           75.43           6118         +              Normal
  03/17/2026 06 AM PDT           75.42           6099         -              Normal
  03/17/2026 07 AM PDT           75.43           6118         +              Normal
  03/17/2026 08 AM PDT           75.42           6099         -              Normal
  03/17/2026 09 AM PDT           75.42           6099         0              Normal
  03/17/2026 10 AM PDT           75.43           6118         +              Normal
  03/17/2026 11 AM PDT           75.43           6118         0              Normal
  03/17/2026 12 PM PDT           75.42           6099         -              Normal
  03/17/2026 01 PM PDT           75.36           5982         -              Normal
  03/17/2026 02 PM PDT           75.21           5693         -              Normal
  03/17/2026 03 PM PDT           75.06           5411         -              Normal
  03/17/2026 04 PM PDT           74.97           5245         -              Normal
  03/17/2026 05 PM PDT           74.95           5208         -              Normal
  03/17/2026 06 PM PDT           74.93           5172         -              Normal
  03/17/2026 07 PM PDT           74.91           5136         -              Normal
  03/17/2026 08 PM PDT           74.91           5136         0              Normal
  03/17/2026 09 PM PDT           74.91           5136         0              Normal
  03/17/2026 10 PM PDT           74.92           5154         +              Normal
  03/17/2026 11 PM PDT           74.92           5154         0              Normal
  03/18/2026 12 AM PDT           74.91           5136         -              Normal
  03/18/2026 01 AM PDT           74.91           5136         0              Normal
  03/18/2026 02 AM PDT           74.91           5136         0              Normal
  03/18/2026 03 AM PDT           74.90           5118         -              Normal
  03/18/2026 04 AM PDT           74.89           5100         -              Normal
  03/18/2026 05 AM PDT           74.90           5118         +              Normal
  03/18/2026 06 AM PDT           74.90           5118         0              Normal
  03/18/2026 07 AM PDT           74.89           5100         -              Normal
  03/18/2026 08 AM PDT           74.90           5118         +              Normal
  03/18/2026 09 AM PDT           74.87           5063         -              Normal
  03/18/2026 10 AM PDT           74.89           5100         +              Normal
  03/18/2026 11 AM PDT           74.89           5100         0              Normal
  03/18/2026 12 PM PDT           74.89           5100         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  03/18/2026 01 PM PDT           74.89           5100                        Normal
  03/18/2026 02 PM PDT           74.89           5100         0              Normal
  03/18/2026 03 PM PDT           74.89           5100         0              Normal
  03/18/2026 04 PM PDT           74.89           5100         0              Normal
  03/18/2026 05 PM PDT           74.89           5100         0              Normal
  03/18/2026 06 PM PDT           74.89           5100         0              Normal
  03/18/2026 07 PM PDT           74.89           5100         0              Normal
  03/18/2026 08 PM PDT           74.89           5100         0              Normal
  03/18/2026 09 PM PDT           74.89           5100         0              Normal
  03/18/2026 10 PM PDT           74.89           5100         0              Normal
  03/18/2026 11 PM PDT           74.89           5100         0              Normal
  03/19/2026 12 AM PDT           74.89           5100         0              Normal
  03/19/2026 01 AM PDT           74.89           5100         0              Normal
  03/19/2026 02 AM PDT           74.89           5100         0              Normal
  03/19/2026 03 AM PDT           74.89           5100         0              Normal
  03/19/2026 04 AM PDT           74.89           5100         0              Normal
  03/19/2026 05 AM PDT           74.89           5100         0              Normal
  03/19/2026 06 AM PDT           74.89           5100         0              Normal
  03/19/2026 07 AM PDT           74.89           5100         0              Normal
  03/19/2026 08 AM PDT           74.89           5100         0              Normal
  03/19/2026 09 AM PDT           74.89           5100         0              Normal
  03/19/2026 10 AM PDT           74.89           5100         0              Normal
  03/19/2026 11 AM PDT           74.89           5100         0              Normal
  03/19/2026 12 PM PDT           74.89           5100         0              Normal
  03/19/2026 01 PM PDT           74.89           5100         0              Normal
  03/19/2026 02 PM PDT           74.89           5100         0              Normal
  03/19/2026 03 PM PDT           74.89           5100         0              Normal
  03/19/2026 04 PM PDT           74.89           5100         0              Normal
  03/19/2026 05 PM PDT           74.89           5100         0              Normal
  03/19/2026 06 PM PDT           74.89           5100         0              Normal
  03/19/2026 07 PM PDT           74.89           5100         0              Normal
  03/19/2026 08 PM PDT           74.89           5100         0              Normal
  03/19/2026 09 PM PDT           74.89           5100         0              Normal
  03/19/2026 10 PM PDT           74.89           5100         0              Normal
  03/19/2026 11 PM PDT           74.89           5100         0              Normal
  03/20/2026 12 AM PDT           74.89           5100         0              Normal
  03/20/2026 01 AM PDT           74.89           5100         0              Normal
  03/20/2026 02 AM PDT           74.89           5100         0              Normal
  03/20/2026 03 AM PDT           74.89           5100         0              Normal
  03/20/2026 04 AM PDT           74.89           5100         0              Normal
  03/20/2026 05 AM PDT           74.89           5100         0              Normal
  03/20/2026 06 AM PDT           74.89           5100         0              Normal
  03/20/2026 07 AM PDT           74.89           5100         0              Normal
  03/20/2026 08 AM PDT           74.89           5100         0              Normal
  03/20/2026 09 AM PDT           74.89           5100         0              Normal
  03/20/2026 10 AM PDT           74.89           5100         0              Normal
  03/20/2026 11 AM PDT           74.89           5100         0              Normal
  03/20/2026 12 PM PDT           74.89           5100         0              Normal
  03/20/2026 01 PM PDT           74.89           5100         0              Normal
  03/20/2026 02 PM PDT           74.89           5100         0              Normal
  03/20/2026 03 PM PDT           74.89           5100         0              Normal
  03/20/2026 04 PM PDT           74.89           5100         0              Normal
  03/20/2026 05 PM PDT           74.89           5100         0              Normal
  03/20/2026 06 PM PDT           74.89           5100         0              Normal
  03/20/2026 07 PM PDT           74.89           5100         0              Normal
  03/20/2026 08 PM PDT           74.90           5118         +              Normal
  03/20/2026 09 PM PDT           74.90           5118         0              Normal
  03/20/2026 10 PM PDT           74.90           5118         0              Normal
  03/20/2026 11 PM PDT           74.90           5118         0              Normal
  03/21/2026 12 AM PDT           74.90           5118         0              Normal
  03/21/2026 01 AM PDT           74.90           5118         0              Normal
  03/21/2026 02 AM PDT           74.90           5118         0              Normal
  03/21/2026 03 AM PDT           74.90           5118         0              Normal
  03/21/2026 04 AM PDT           74.90           5118         0              Normal
  03/21/2026 05 AM PDT           74.90           5118         0              Normal
  03/21/2026 06 AM PDT           74.90           5118         0              Normal
  03/21/2026 07 AM PDT           74.90           5118         0              Normal
  03/21/2026 08 AM PDT           74.90           5118         0              Normal
  03/21/2026 09 AM PDT           74.90           5118         0              Normal
  03/21/2026 10 AM PDT           74.90           5118         0              Normal
  03/21/2026 11 AM PDT           74.90           5118         0              Normal
  03/21/2026 12 PM PDT           74.90           5118         0              Normal
  03/21/2026 01 PM PDT           74.90           5118         0              Normal
  03/21/2026 02 PM PDT           74.90           5118         0              Normal
  03/21/2026 03 PM PDT           74.90           5118         0              Normal
  03/21/2026 04 PM PDT           74.90           5118         0              Normal
  03/21/2026 05 PM PDT           74.90           5118         0              Normal
  03/21/2026 06 PM PDT           74.90           5118         0              Normal
  03/21/2026 07 PM PDT           74.90           5118         0              Normal
  03/21/2026 08 PM PDT           74.90           5118         0              Normal
  03/21/2026 09 PM PDT           74.90           5118         0              Normal
  03/21/2026 10 PM PDT           74.90           5118         0              Normal
  03/21/2026 11 PM PDT           74.90           5118         0              Normal
  03/22/2026 12 AM PDT           74.90           5118         0              Normal
  03/22/2026 01 AM PDT           74.90           5118         0              Normal
  03/22/2026 02 AM PDT           74.90           5118         0              Normal
  03/22/2026 03 AM PDT           74.90           5118         0              Normal
  03/22/2026 04 AM PDT           74.90           5118         0              Normal
  03/22/2026 05 AM PDT           74.90           5118         0              Normal
  03/22/2026 06 AM PDT           74.90           5118         0              Normal
  03/22/2026 07 AM PDT           74.90           5118         0              Normal
  03/22/2026 08 AM PDT           74.90           5118         0              Normal
  03/22/2026 09 AM PDT           74.90           5118         0              Normal
  03/22/2026 10 AM PDT           74.90           5118         0              Normal
  03/22/2026 11 AM PDT           74.90           5118         0              Normal
  03/22/2026 12 PM PDT           74.90           5118         0              Normal
  03/22/2026 01 PM PDT           74.90           5118         0              Normal
  03/22/2026 02 PM PDT           74.90           5118         0              Normal
  03/22/2026 03 PM PDT           74.90           5118         0              Normal
  03/22/2026 04 PM PDT           74.90           5118         0              Normal
  03/22/2026 05 PM PDT           74.90           5118         0              Normal
  03/22/2026 06 PM PDT           74.90           5118         0              Normal
  03/22/2026 07 PM PDT           74.90           5118         0              Normal
  03/22/2026 08 PM PDT           74.90           5118         0              Normal
  03/22/2026 09 PM PDT           74.90           5118         0              Normal
  03/22/2026 10 PM PDT           74.90           5118         0              Normal
  03/22/2026 11 PM PDT           74.90           5118         0              Normal
  03/23/2026 12 AM PDT           74.90           5118         0              Normal
  03/23/2026 01 AM PDT           74.90           5118         0              Normal
  03/23/2026 02 AM PDT           74.90           5118         0              Normal
  03/23/2026 03 AM PDT           74.90           5118         0              Normal
  03/23/2026 04 AM PDT           74.90           5118         0              Normal
  03/23/2026 05 AM PDT           74.90           5118         0              Normal
#
# 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.