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: Oct 16 2026 at 7:24 AM PDTNext Issuance: Oct 17 2026 at 9:00 AM PDT
Action: 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:  10/16/2026 at 07:24 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  10/11/2026 at 12:00 PM PDT
# Maximum Observed Stage:                       73.69 Feet
# Maximum Observed Flow:                        3245 cfs
#
# Earliest Date & Time of Maximum Forecast:     10/18/2026 at 04:00 AM PDT
# Maximum Forecast Stage:                       72.89 Feet
# Maximum Forecast Flow:                        2174 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  10/11/2026 07 AM PDT           73.68           3230                        Normal
  10/11/2026 08 AM PDT           73.68           3230         0              Normal
  10/11/2026 09 AM PDT           73.68           3230         0              Normal
  10/11/2026 10 AM PDT           73.68           3230         0              Normal
  10/11/2026 11 AM PDT           73.68           3230         0              Normal
  10/11/2026 12 PM PDT           73.69           3245         +              Normal
  10/11/2026 01 PM PDT           73.68           3230         -              Normal
  10/11/2026 02 PM PDT           73.63           3158         -              Normal
  10/11/2026 03 PM PDT           73.52           3001         -              Normal
  10/11/2026 04 PM PDT           73.45           2903         -              Normal
  10/11/2026 05 PM PDT           73.41           2849         -              Normal
  10/11/2026 06 PM PDT           73.41           2849         0              Normal
  10/11/2026 07 PM PDT           73.40           2835         -              Normal
  10/11/2026 08 PM PDT           73.39           2821         -              Normal
  10/11/2026 09 PM PDT           73.39           2821         0              Normal
  10/11/2026 10 PM PDT           73.38           2807         -              Normal
  10/11/2026 11 PM PDT           73.40           2835         +              Normal
  10/12/2026 12 AM PDT           73.38           2807         -              Normal
  10/12/2026 01 AM PDT           73.38           2807         0              Normal
  10/12/2026 02 AM PDT           73.38           2807         0              Normal
  10/12/2026 03 AM PDT           73.38           2807         0              Normal
  10/12/2026 04 AM PDT           73.38           2807         0              Normal
  10/12/2026 05 AM PDT           73.37           2794         -              Normal
  10/12/2026 06 AM PDT           73.39           2821         +              Normal
  10/12/2026 07 AM PDT           73.38           2807         -              Normal
  10/12/2026 08 AM PDT           73.38           2807         0              Normal
  10/12/2026 09 AM PDT           73.39           2821         +              Normal
  10/12/2026 10 AM PDT           73.39           2821         0              Normal
  10/12/2026 11 AM PDT           73.38           2807         -              Normal
  10/12/2026 12 PM PDT           73.38           2807         0              Normal
  10/12/2026 01 PM PDT           73.37           2794         -              Normal
  10/12/2026 02 PM PDT           73.37           2794         0              Normal
  10/12/2026 03 PM PDT           73.38           2807         +              Normal
  10/12/2026 04 PM PDT           73.39           2821         +              Normal
  10/12/2026 05 PM PDT           73.39           2821         0              Normal
  10/12/2026 06 PM PDT           73.39           2821         0              Normal
  10/12/2026 07 PM PDT           73.39           2821         0              Normal
  10/12/2026 08 PM PDT           73.38           2807         -              Normal
  10/12/2026 09 PM PDT           73.38           2807         0              Normal
  10/12/2026 10 PM PDT           73.38           2807         0              Normal
  10/12/2026 11 PM PDT           73.38           2807         0              Normal
  10/13/2026 12 AM PDT           73.38           2807         0              Normal
  10/13/2026 01 AM PDT           73.37           2794         -              Normal
  10/13/2026 02 AM PDT           73.38           2807         +              Normal
  10/13/2026 03 AM PDT           73.38           2807         0              Normal
  10/13/2026 04 AM PDT           73.38           2807         0              Normal
  10/13/2026 05 AM PDT           73.38           2807         0              Normal
  10/13/2026 06 AM PDT           73.38           2807         0              Normal
  10/13/2026 07 AM PDT           73.38           2807         0              Normal
  10/13/2026 08 AM PDT           73.38           2807         0              Normal
  10/13/2026 09 AM PDT           73.39           2821         +              Normal
  10/13/2026 10 AM PDT           73.38           2807         -              Normal
  10/13/2026 11 AM PDT           73.38           2807         0              Normal
  10/13/2026 12 PM PDT           73.37           2794         -              Normal
  10/13/2026 01 PM PDT           73.37           2794         0              Normal
  10/13/2026 02 PM PDT           73.33           2739         -              Normal
  10/13/2026 03 PM PDT           73.19           2553         -              Normal
  10/13/2026 04 PM PDT           73.10           2437         -              Normal
  10/13/2026 05 PM PDT           73.05           2373         -              Normal
  10/13/2026 06 PM PDT           73.04           2360         -              Normal
  10/13/2026 07 PM PDT           73.03           2347         -              Normal
  10/13/2026 08 PM PDT           73.03           2347         0              Normal
  10/13/2026 09 PM PDT           73.03           2347         0              Normal
  10/13/2026 10 PM PDT           73.03           2347         0              Normal
  10/13/2026 11 PM PDT           73.03           2347         0              Normal
  10/14/2026 12 AM PDT           73.02           2335         -              Normal
  10/14/2026 01 AM PDT           73.02           2335         0              Normal
  10/14/2026 02 AM PDT           73.02           2335         0              Normal
  10/14/2026 03 AM PDT           73.02           2335         0              Normal
  10/14/2026 04 AM PDT           73.02           2335         0              Normal
  10/14/2026 05 AM PDT           73.02           2335         0              Normal
  10/14/2026 06 AM PDT           73.02           2335         0              Normal
  10/14/2026 07 AM PDT           73.02           2335         0              Normal
  10/14/2026 08 AM PDT           73.02           2335         0              Normal
  10/14/2026 09 AM PDT           73.03           2347         +              Normal
  10/14/2026 10 AM PDT           73.03           2347         0              Normal
  10/14/2026 11 AM PDT           73.02           2335         -              Normal
  10/14/2026 12 PM PDT           73.02           2335         0              Normal
  10/14/2026 01 PM PDT           73.03           2347         +              Normal
  10/14/2026 02 PM PDT           72.99           2297         -              Normal
  10/14/2026 03 PM PDT           72.93           2223         -              Normal
  10/14/2026 04 PM PDT           72.92           2210         -              Normal
  10/14/2026 05 PM PDT           72.91           2198         -              Normal
  10/14/2026 06 PM PDT           72.90           2186         -              Normal
  10/14/2026 07 PM PDT           72.90           2186         0              Normal
  10/14/2026 08 PM PDT           72.89           2174         -              Normal
  10/14/2026 09 PM PDT           72.89           2174         0              Normal
  10/14/2026 10 PM PDT           72.90           2186         +              Normal
  10/14/2026 11 PM PDT           72.89           2174         -              Normal
  10/15/2026 12 AM PDT           72.89           2174         0              Normal
  10/15/2026 01 AM PDT           72.89           2174         0              Normal
  10/15/2026 02 AM PDT           72.89           2174         0              Normal
  10/15/2026 03 AM PDT           72.89           2174         0              Normal
  10/15/2026 04 AM PDT           72.89           2174         0              Normal
  10/15/2026 05 AM PDT           72.89           2174         0              Normal
  10/15/2026 06 AM PDT           72.89           2174         0              Normal
  10/15/2026 07 AM PDT           72.90           2186         +              Normal
  10/15/2026 08 AM PDT           72.93           2223         +              Normal
  10/15/2026 09 AM PDT           72.89           2174         -              Normal
  10/15/2026 10 AM PDT           72.89           2174         0              Normal
  10/15/2026 11 AM PDT           72.88           2161         -              Normal
  10/15/2026 12 PM PDT           72.88           2161         0              Normal
  10/15/2026 01 PM PDT           72.88           2161         0              Normal
  10/15/2026 02 PM PDT           72.89           2174         +              Normal
  10/15/2026 03 PM PDT           72.88           2161         -              Normal
  10/15/2026 04 PM PDT           72.87           2149         -              Normal
  10/15/2026 05 PM PDT           72.88           2161         +              Normal
  10/15/2026 06 PM PDT           72.88           2161         0              Normal
  10/15/2026 07 PM PDT           72.88           2161         0              Normal
  10/15/2026 08 PM PDT           72.89           2174         +              Normal
  10/15/2026 09 PM PDT           72.89           2174         0              Normal
  10/15/2026 10 PM PDT           72.88           2161         -              Normal
  10/15/2026 11 PM PDT           72.89           2174         +              Normal
  10/16/2026 12 AM PDT           72.89           2174         0              Normal
  10/16/2026 01 AM PDT           72.88           2161         -              Normal
  10/16/2026 02 AM PDT           72.88           2161         0              Normal
  10/16/2026 03 AM PDT           72.87           2149         -              Normal
  10/16/2026 04 AM PDT           72.87           2149         0              Normal
  10/16/2026 05 AM PDT           72.88           2161         +              Normal
  10/16/2026 06 AM PDT           72.88           2161         0              Normal
  10/16/2026 07 AM PDT           72.88           2161         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  10/16/2026 08 AM PDT           72.88           2161                        Normal
  10/16/2026 09 AM PDT           72.88           2161         0              Normal
  10/16/2026 10 AM PDT           72.88           2161         0              Normal
  10/16/2026 11 AM PDT           72.88           2161         0              Normal
  10/16/2026 12 PM PDT           72.88           2161         0              Normal
  10/16/2026 01 PM PDT           72.88           2161         0              Normal
  10/16/2026 02 PM PDT           72.88           2161         0              Normal
  10/16/2026 03 PM PDT           72.88           2161         0              Normal
  10/16/2026 04 PM PDT           72.88           2161         0              Normal
  10/16/2026 05 PM PDT           72.88           2161         0              Normal
  10/16/2026 06 PM PDT           72.88           2161         0              Normal
  10/16/2026 07 PM PDT           72.88           2161         0              Normal
  10/16/2026 08 PM PDT           72.88           2161         0              Normal
  10/16/2026 09 PM PDT           72.88           2161         0              Normal
  10/16/2026 10 PM PDT           72.88           2161         0              Normal
  10/16/2026 11 PM PDT           72.88           2161         0              Normal
  10/17/2026 12 AM PDT           72.88           2161         0              Normal
  10/17/2026 01 AM PDT           72.88           2161         0              Normal
  10/17/2026 02 AM PDT           72.88           2161         0              Normal
  10/17/2026 03 AM PDT           72.88           2161         0              Normal
  10/17/2026 04 AM PDT           72.88           2161         0              Normal
  10/17/2026 05 AM PDT           72.88           2161         0              Normal
  10/17/2026 06 AM PDT           72.88           2161         0              Normal
  10/17/2026 07 AM PDT           72.88           2161         0              Normal
  10/17/2026 08 AM PDT           72.88           2161         0              Normal
  10/17/2026 09 AM PDT           72.88           2161         0              Normal
  10/17/2026 10 AM PDT           72.88           2161         0              Normal
  10/17/2026 11 AM PDT           72.88           2161         0              Normal
  10/17/2026 12 PM PDT           72.88           2161         0              Normal
  10/17/2026 01 PM PDT           72.88           2161         0              Normal
  10/17/2026 02 PM PDT           72.88           2161         0              Normal
  10/17/2026 03 PM PDT           72.88           2161         0              Normal
  10/17/2026 04 PM PDT           72.88           2161         0              Normal
  10/17/2026 05 PM PDT           72.88           2161         0              Normal
  10/17/2026 06 PM PDT           72.88           2161         0              Normal
  10/17/2026 07 PM PDT           72.88           2161         0              Normal
  10/17/2026 08 PM PDT           72.88           2161         0              Normal
  10/17/2026 09 PM PDT           72.88           2161         0              Normal
  10/17/2026 10 PM PDT           72.88           2161         0              Normal
  10/17/2026 11 PM PDT           72.88           2161         0              Normal
  10/18/2026 12 AM PDT           72.88           2161         0              Normal
  10/18/2026 01 AM PDT           72.88           2161         0              Normal
  10/18/2026 02 AM PDT           72.88           2161         0              Normal
  10/18/2026 03 AM PDT           72.88           2161         0              Normal
  10/18/2026 04 AM PDT           72.89           2174         +              Normal
  10/18/2026 05 AM PDT           72.89           2174         0              Normal
  10/18/2026 06 AM PDT           72.89           2174         0              Normal
  10/18/2026 07 AM PDT           72.89           2174         0              Normal
  10/18/2026 08 AM PDT           72.89           2174         0              Normal
  10/18/2026 09 AM PDT           72.89           2174         0              Normal
  10/18/2026 10 AM PDT           72.89           2174         0              Normal
  10/18/2026 11 AM PDT           72.89           2174         0              Normal
  10/18/2026 12 PM PDT           72.89           2174         0              Normal
  10/18/2026 01 PM PDT           72.89           2174         0              Normal
  10/18/2026 02 PM PDT           72.89           2174         0              Normal
  10/18/2026 03 PM PDT           72.89           2174         0              Normal
  10/18/2026 04 PM PDT           72.89           2174         0              Normal
  10/18/2026 05 PM PDT           72.89           2174         0              Normal
  10/18/2026 06 PM PDT           72.89           2174         0              Normal
  10/18/2026 07 PM PDT           72.89           2174         0              Normal
  10/18/2026 08 PM PDT           72.89           2174         0              Normal
  10/18/2026 09 PM PDT           72.89           2174         0              Normal
  10/18/2026 10 PM PDT           72.89           2174         0              Normal
  10/18/2026 11 PM PDT           72.89           2174         0              Normal
  10/19/2026 12 AM PDT           72.89           2174         0              Normal
  10/19/2026 01 AM PDT           72.89           2174         0              Normal
  10/19/2026 02 AM PDT           72.89           2174         0              Normal
  10/19/2026 03 AM PDT           72.89           2174         0              Normal
  10/19/2026 04 AM PDT           72.89           2174         0              Normal
  10/19/2026 05 AM PDT           72.89           2174         0              Normal
  10/19/2026 06 AM PDT           72.89           2174         0              Normal
  10/19/2026 07 AM PDT           72.89           2174         0              Normal
  10/19/2026 08 AM PDT           72.89           2174         0              Normal
  10/19/2026 09 AM PDT           72.89           2174         0              Normal
  10/19/2026 10 AM PDT           72.89           2174         0              Normal
  10/19/2026 11 AM PDT           72.89           2174         0              Normal
  10/19/2026 12 PM PDT           72.89           2174         0              Normal
  10/19/2026 01 PM PDT           72.89           2174         0              Normal
  10/19/2026 02 PM PDT           72.89           2174         0              Normal
  10/19/2026 03 PM PDT           72.89           2174         0              Normal
  10/19/2026 04 PM PDT           72.89           2174         0              Normal
  10/19/2026 05 PM PDT           72.89           2174         0              Normal
  10/19/2026 06 PM PDT           72.89           2174         0              Normal
  10/19/2026 07 PM PDT           72.89           2174         0              Normal
  10/19/2026 08 PM PDT           72.89           2174         0              Normal
  10/19/2026 09 PM PDT           72.89           2174         0              Normal
  10/19/2026 10 PM PDT           72.89           2174         0              Normal
  10/19/2026 11 PM PDT           72.89           2174         0              Normal
  10/20/2026 12 AM PDT           72.89           2174         0              Normal
  10/20/2026 01 AM PDT           72.89           2174         0              Normal
  10/20/2026 02 AM PDT           72.89           2174         0              Normal
  10/20/2026 03 AM PDT           72.89           2174         0              Normal
  10/20/2026 04 AM PDT           72.89           2174         0              Normal
  10/20/2026 05 AM PDT           72.89           2174         0              Normal
  10/20/2026 06 AM PDT           72.89           2174         0              Normal
  10/20/2026 07 AM PDT           72.89           2174         0              Normal
  10/20/2026 08 AM PDT           72.89           2174         0              Normal
  10/20/2026 09 AM PDT           72.89           2174         0              Normal
  10/20/2026 10 AM PDT           72.89           2174         0              Normal
  10/20/2026 11 AM PDT           72.89           2174         0              Normal
  10/20/2026 12 PM PDT           72.89           2174         0              Normal
  10/20/2026 01 PM PDT           72.89           2174         0              Normal
  10/20/2026 02 PM PDT           72.89           2174         0              Normal
  10/20/2026 03 PM PDT           72.89           2174         0              Normal
  10/20/2026 04 PM PDT           72.89           2174         0              Normal
  10/20/2026 05 PM PDT           72.89           2174         0              Normal
  10/20/2026 06 PM PDT           72.89           2174         0              Normal
  10/20/2026 07 PM PDT           72.89           2174         0              Normal
  10/20/2026 08 PM PDT           72.89           2174         0              Normal
  10/20/2026 09 PM PDT           72.89           2174         0              Normal
  10/20/2026 10 PM PDT           72.89           2174         0              Normal
  10/20/2026 11 PM PDT           72.89           2174         0              Normal
  10/21/2026 12 AM PDT           72.89           2174         0              Normal
  10/21/2026 01 AM PDT           72.89           2174         0              Normal
  10/21/2026 02 AM PDT           72.89           2174         0              Normal
  10/21/2026 03 AM PDT           72.89           2174         0              Normal
  10/21/2026 04 AM PDT           72.89           2174         0              Normal
  10/21/2026 05 AM PDT           72.89           2174         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.