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: Sep 19 2026 at 8:14 AM PDTNext Issuance: Sep 20 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:  09/19/2026 at 08:14 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  09/19/2026 at 02:00 AM PDT
# Maximum Observed Stage:                       76.04 Feet
# Maximum Observed Flow:                        7470 cfs
#
# Earliest Date & Time of Maximum Forecast:     09/23/2026 at 09:00 AM PDT
# Maximum Forecast Stage:                       76.25 Feet
# Maximum Forecast Flow:                        7923 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  09/14/2026 08 AM PDT           75.51           6381                        Normal
  09/14/2026 09 AM PDT           75.52           6401         +              Normal
  09/14/2026 10 AM PDT           75.51           6381         -              Normal
  09/14/2026 11 AM PDT           75.52           6401         +              Normal
  09/14/2026 12 PM PDT           75.50           6361         -              Normal
  09/14/2026 01 PM PDT           75.52           6401         +              Normal
  09/14/2026 02 PM PDT           75.49           6341         -              Normal
  09/14/2026 03 PM PDT           75.50           6361         +              Normal
  09/14/2026 04 PM PDT           75.48           6321         -              Normal
  09/14/2026 05 PM PDT           75.46           6282         -              Normal
  09/14/2026 06 PM PDT           75.48           6321         +              Normal
  09/14/2026 07 PM PDT           75.47           6302         -              Normal
  09/14/2026 08 PM PDT           75.49           6341         +              Normal
  09/14/2026 09 PM PDT           75.48           6321         -              Normal
  09/14/2026 10 PM PDT           75.48           6321         0              Normal
  09/14/2026 11 PM PDT           75.47           6302         -              Normal
  09/15/2026 12 AM PDT           75.48           6321         +              Normal
  09/15/2026 01 AM PDT           75.48           6321         0              Normal
  09/15/2026 02 AM PDT           75.49           6341         +              Normal
  09/15/2026 03 AM PDT           75.49           6341         0              Normal
  09/15/2026 04 AM PDT           75.51           6381         +              Normal
  09/15/2026 05 AM PDT           75.50           6361         -              Normal
  09/15/2026 06 AM PDT           75.51           6381         +              Normal
  09/15/2026 07 AM PDT           75.52           6401         +              Normal
  09/15/2026 08 AM PDT           75.51           6381         -              Normal
  09/15/2026 09 AM PDT           75.50           6361         -              Normal
  09/15/2026 10 AM PDT           75.58           6521         +              Normal
  09/15/2026 11 AM PDT           75.56           6480         -              Normal
  09/15/2026 12 PM PDT           75.57           6500         +              Normal
  09/15/2026 01 PM PDT           75.57           6500         0              Normal
  09/15/2026 02 PM PDT           75.58           6521         +              Normal
  09/15/2026 03 PM PDT           75.58           6521         0              Normal
  09/15/2026 04 PM PDT           75.56           6480         -              Normal
  09/15/2026 05 PM PDT           75.58           6521         +              Normal
  09/15/2026 06 PM PDT           75.57           6500         -              Normal
  09/15/2026 07 PM PDT           75.59           6541         +              Normal
  09/15/2026 08 PM PDT           75.59           6541         0              Normal
  09/15/2026 09 PM PDT           75.59           6541         0              Normal
  09/15/2026 10 PM PDT           75.56           6480         -              Normal
  09/15/2026 11 PM PDT           75.58           6521         +              Normal
  09/16/2026 12 AM PDT           75.59           6541         +              Normal
  09/16/2026 01 AM PDT           75.59           6541         0              Normal
  09/16/2026 02 AM PDT           75.61           6581         +              Normal
  09/16/2026 03 AM PDT           75.63           6621         +              Normal
  09/16/2026 04 AM PDT           75.61           6581         -              Normal
  09/16/2026 05 AM PDT           75.60           6561         -              Normal
  09/16/2026 06 AM PDT           75.62           6601         +              Normal
  09/16/2026 07 AM PDT           75.60           6561         -              Normal
  09/16/2026 08 AM PDT           75.61           6581         +              Normal
  09/16/2026 09 AM PDT           75.63           6621         +              Normal
  09/16/2026 10 AM PDT           75.61           6581         -              Normal
  09/16/2026 11 AM PDT           75.61           6581         0              Normal
  09/16/2026 12 PM PDT           75.59           6541         -              Normal
  09/16/2026 01 PM PDT           75.59           6541         0              Normal
  09/16/2026 02 PM PDT           75.62           6601         +              Normal
  09/16/2026 03 PM PDT           75.70           6763         +              Normal
  09/16/2026 04 PM PDT           75.78           6926         +              Normal
  09/16/2026 05 PM PDT           75.80           6967         +              Normal
  09/16/2026 06 PM PDT           75.82           7008         +              Normal
  09/16/2026 07 PM PDT           75.80           6967         -              Normal
  09/16/2026 08 PM PDT           75.82           7008         +              Normal
  09/16/2026 09 PM PDT           75.82           7008         0              Normal
  09/16/2026 10 PM PDT           75.82           7008         0              Normal
  09/16/2026 11 PM PDT           75.83           7029         +              Normal
  09/17/2026 12 AM PDT           75.84           7049         +              Normal
  09/17/2026 01 AM PDT           75.84           7049         0              Normal
  09/17/2026 02 AM PDT           75.85           7070         +              Normal
  09/17/2026 03 AM PDT           75.86           7091         +              Normal
  09/17/2026 04 AM PDT           75.85           7070         -              Normal
  09/17/2026 05 AM PDT           75.84           7049         -              Normal
  09/17/2026 06 AM PDT           75.82           7008         -              Normal
  09/17/2026 07 AM PDT           75.85           7070         +              Normal
  09/17/2026 08 AM PDT           75.83           7029         -              Normal
  09/17/2026 09 AM PDT           75.80           6967         -              Normal
  09/17/2026 10 AM PDT           75.81           6988         +              Normal
  09/17/2026 11 AM PDT           75.81           6988         0              Normal
  09/17/2026 12 PM PDT           75.80           6967         -              Normal
  09/17/2026 01 PM PDT           75.81           6988         +              Normal
  09/17/2026 02 PM PDT           75.81           6988         0              Normal
  09/17/2026 03 PM PDT           75.80           6967         -              Normal
  09/17/2026 04 PM PDT           75.80           6967         0              Normal
  09/17/2026 05 PM PDT           75.81           6988         +              Normal
  09/17/2026 06 PM PDT           75.80           6967         -              Normal
  09/17/2026 07 PM PDT           75.81           6988         +              Normal
  09/17/2026 08 PM PDT           75.81           6988         0              Normal
  09/17/2026 09 PM PDT           75.82           7008         +              Normal
  09/17/2026 10 PM PDT           75.81           6988         -              Normal
  09/17/2026 11 PM PDT           75.83           7029         +              Normal
  09/18/2026 12 AM PDT           75.81           6988         -              Normal
  09/18/2026 01 AM PDT           75.81           6988         0              Normal
  09/18/2026 02 AM PDT           75.80           6967         -              Normal
  09/18/2026 03 AM PDT           75.82           7008         +              Normal
  09/18/2026 04 AM PDT           75.80           6967         -              Normal
  09/18/2026 05 AM PDT           75.81           6988         +              Normal
  09/18/2026 06 AM PDT           75.82           7008         +              Normal
  09/18/2026 07 AM PDT           75.82           7008         0              Normal
  09/18/2026 08 AM PDT           75.80           6967         -              Normal
  09/18/2026 09 AM PDT           75.83           7029         +              Normal
  09/18/2026 10 AM PDT           75.82           7008         -              Normal
  09/18/2026 11 AM PDT           75.83           7029         +              Normal
  09/18/2026 12 PM PDT           75.82           7008         -              Normal
  09/18/2026 01 PM PDT           75.81           6988         -              Normal
  09/18/2026 02 PM PDT           75.84           7049         +              Normal
  09/18/2026 03 PM PDT           75.84           7049         0              Normal
  09/18/2026 04 PM PDT           75.85           7070         +              Normal
  09/18/2026 05 PM PDT           75.93           7237         +              Normal
  09/18/2026 06 PM PDT           76.00           7385         +              Normal
  09/18/2026 07 PM PDT           76.01           7406         +              Normal
  09/18/2026 08 PM PDT           75.98           7343         -              Normal
  09/18/2026 09 PM PDT           76.03           7448         +              Normal
  09/18/2026 10 PM PDT           76.03           7448         0              Normal
  09/18/2026 11 PM PDT           76.03           7448         0              Normal
  09/19/2026 12 AM PDT           76.04           7470         +              Normal
  09/19/2026 01 AM PDT           76.04           7470         0              Normal
  09/19/2026 02 AM PDT           76.04           7470         0              Normal
  09/19/2026 03 AM PDT           76.02           7427         -              Normal
  09/19/2026 04 AM PDT           76.01           7406         -              Normal
  09/19/2026 05 AM PDT           76.01           7406         0              Normal
  09/19/2026 06 AM PDT           76.01           7406         0              Normal
  09/19/2026 07 AM PDT           76.01           7406         0              Normal
  09/19/2026 08 AM PDT           76.01           7406         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  09/19/2026 09 AM PDT           76.01           7406                        Normal
  09/19/2026 10 AM PDT           76.01           7406         0              Normal
  09/19/2026 11 AM PDT           76.01           7406         0              Normal
  09/19/2026 12 PM PDT           76.01           7406         0              Normal
  09/19/2026 01 PM PDT           76.01           7406         0              Normal
  09/19/2026 02 PM PDT           76.09           7576         +              Normal
  09/19/2026 03 PM PDT           76.19           7792         +              Normal
  09/19/2026 04 PM PDT           76.23           7879         +              Normal
  09/19/2026 05 PM PDT           76.24           7901         +              Normal
  09/19/2026 06 PM PDT           76.24           7901         0              Normal
  09/19/2026 07 PM PDT           76.24           7901         0              Normal
  09/19/2026 08 PM PDT           76.24           7901         0              Normal
  09/19/2026 09 PM PDT           76.24           7901         0              Normal
  09/19/2026 10 PM PDT           76.24           7901         0              Normal
  09/19/2026 11 PM PDT           76.24           7901         0              Normal
  09/20/2026 12 AM PDT           76.24           7901         0              Normal
  09/20/2026 01 AM PDT           76.24           7901         0              Normal
  09/20/2026 02 AM PDT           76.24           7901         0              Normal
  09/20/2026 03 AM PDT           76.24           7901         0              Normal
  09/20/2026 04 AM PDT           76.24           7901         0              Normal
  09/20/2026 05 AM PDT           76.24           7901         0              Normal
  09/20/2026 06 AM PDT           76.24           7901         0              Normal
  09/20/2026 07 AM PDT           76.24           7901         0              Normal
  09/20/2026 08 AM PDT           76.24           7901         0              Normal
  09/20/2026 09 AM PDT           76.24           7901         0              Normal
  09/20/2026 10 AM PDT           76.24           7901         0              Normal
  09/20/2026 11 AM PDT           76.24           7901         0              Normal
  09/20/2026 12 PM PDT           76.24           7901         0              Normal
  09/20/2026 01 PM PDT           76.24           7901         0              Normal
  09/20/2026 02 PM PDT           76.24           7901         0              Normal
  09/20/2026 03 PM PDT           76.24           7901         0              Normal
  09/20/2026 04 PM PDT           76.24           7901         0              Normal
  09/20/2026 05 PM PDT           76.24           7901         0              Normal
  09/20/2026 06 PM PDT           76.24           7901         0              Normal
  09/20/2026 07 PM PDT           76.24           7901         0              Normal
  09/20/2026 08 PM PDT           76.24           7901         0              Normal
  09/20/2026 09 PM PDT           76.24           7901         0              Normal
  09/20/2026 10 PM PDT           76.24           7901         0              Normal
  09/20/2026 11 PM PDT           76.24           7901         0              Normal
  09/21/2026 12 AM PDT           76.24           7901         0              Normal
  09/21/2026 01 AM PDT           76.24           7901         0              Normal
  09/21/2026 02 AM PDT           76.24           7901         0              Normal
  09/21/2026 03 AM PDT           76.24           7901         0              Normal
  09/21/2026 04 AM PDT           76.24           7901         0              Normal
  09/21/2026 05 AM PDT           76.24           7901         0              Normal
  09/21/2026 06 AM PDT           76.24           7901         0              Normal
  09/21/2026 07 AM PDT           76.24           7901         0              Normal
  09/21/2026 08 AM PDT           76.24           7901         0              Normal
  09/21/2026 09 AM PDT           76.24           7901         0              Normal
  09/21/2026 10 AM PDT           76.24           7901         0              Normal
  09/21/2026 11 AM PDT           76.24           7901         0              Normal
  09/21/2026 12 PM PDT           76.24           7901         0              Normal
  09/21/2026 01 PM PDT           76.24           7901         0              Normal
  09/21/2026 02 PM PDT           76.24           7901         0              Normal
  09/21/2026 03 PM PDT           76.24           7901         0              Normal
  09/21/2026 04 PM PDT           76.24           7901         0              Normal
  09/21/2026 05 PM PDT           76.24           7901         0              Normal
  09/21/2026 06 PM PDT           76.24           7901         0              Normal
  09/21/2026 07 PM PDT           76.24           7901         0              Normal
  09/21/2026 08 PM PDT           76.24           7901         0              Normal
  09/21/2026 09 PM PDT           76.24           7901         0              Normal
  09/21/2026 10 PM PDT           76.24           7901         0              Normal
  09/21/2026 11 PM PDT           76.24           7901         0              Normal
  09/22/2026 12 AM PDT           76.24           7901         0              Normal
  09/22/2026 01 AM PDT           76.24           7901         0              Normal
  09/22/2026 02 AM PDT           76.24           7901         0              Normal
  09/22/2026 03 AM PDT           76.24           7901         0              Normal
  09/22/2026 04 AM PDT           76.24           7901         0              Normal
  09/22/2026 05 AM PDT           76.24           7901         0              Normal
  09/22/2026 06 AM PDT           76.24           7901         0              Normal
  09/22/2026 07 AM PDT           76.24           7901         0              Normal
  09/22/2026 08 AM PDT           76.24           7901         0              Normal
  09/22/2026 09 AM PDT           76.24           7901         0              Normal
  09/22/2026 10 AM PDT           76.24           7901         0              Normal
  09/22/2026 11 AM PDT           76.24           7901         0              Normal
  09/22/2026 12 PM PDT           76.24           7901         0              Normal
  09/22/2026 01 PM PDT           76.24           7901         0              Normal
  09/22/2026 02 PM PDT           76.24           7901         0              Normal
  09/22/2026 03 PM PDT           76.24           7901         0              Normal
  09/22/2026 04 PM PDT           76.24           7901         0              Normal
  09/22/2026 05 PM PDT           76.24           7901         0              Normal
  09/22/2026 06 PM PDT           76.24           7901         0              Normal
  09/22/2026 07 PM PDT           76.24           7901         0              Normal
  09/22/2026 08 PM PDT           76.24           7901         0              Normal
  09/22/2026 09 PM PDT           76.24           7901         0              Normal
  09/22/2026 10 PM PDT           76.24           7901         0              Normal
  09/22/2026 11 PM PDT           76.24           7901         0              Normal
  09/23/2026 12 AM PDT           76.24           7901         0              Normal
  09/23/2026 01 AM PDT           76.24           7901         0              Normal
  09/23/2026 02 AM PDT           76.24           7901         0              Normal
  09/23/2026 03 AM PDT           76.24           7901         0              Normal
  09/23/2026 04 AM PDT           76.24           7901         0              Normal
  09/23/2026 05 AM PDT           76.24           7901         0              Normal
  09/23/2026 06 AM PDT           76.24           7901         0              Normal
  09/23/2026 07 AM PDT           76.24           7901         0              Normal
  09/23/2026 08 AM PDT           76.24           7901         0              Normal
  09/23/2026 09 AM PDT           76.25           7923         +              Normal
  09/23/2026 10 AM PDT           76.25           7923         0              Normal
  09/23/2026 11 AM PDT           76.25           7923         0              Normal
  09/23/2026 12 PM PDT           76.25           7923         0              Normal
  09/23/2026 01 PM PDT           76.25           7923         0              Normal
  09/23/2026 02 PM PDT           76.25           7923         0              Normal
  09/23/2026 03 PM PDT           76.25           7923         0              Normal
  09/23/2026 04 PM PDT           76.25           7923         0              Normal
  09/23/2026 05 PM PDT           76.25           7923         0              Normal
  09/23/2026 06 PM PDT           76.25           7923         0              Normal
  09/23/2026 07 PM PDT           76.25           7923         0              Normal
  09/23/2026 08 PM PDT           76.25           7923         0              Normal
  09/23/2026 09 PM PDT           76.25           7923         0              Normal
  09/23/2026 10 PM PDT           76.25           7923         0              Normal
  09/23/2026 11 PM PDT           76.25           7923         0              Normal
  09/24/2026 12 AM PDT           76.25           7923         0              Normal
  09/24/2026 01 AM PDT           76.25           7923         0              Normal
  09/24/2026 02 AM PDT           76.25           7923         0              Normal
  09/24/2026 03 AM PDT           76.25           7923         0              Normal
  09/24/2026 04 AM PDT           76.25           7923         0              Normal
  09/24/2026 05 AM PDT           76.25           7923         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.