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: Aug 14 2026 at 7:22 AM PDTNext Issuance: Aug 15 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:  08/14/2026 at 07:22 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  08/10/2026 at 01:00 PM PDT
# Maximum Observed Stage:                       76.74 Feet
# Maximum Observed Flow:                        9026 cfs
#
# Earliest Date & Time of Maximum Forecast:     08/14/2026 at 08:00 AM PDT
# Maximum Forecast Stage:                       76.41 Feet
# Maximum Forecast Flow:                        8276 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  08/09/2026 07 AM PDT           76.73           9003                        Normal
  08/09/2026 08 AM PDT           76.72           8980         -              Normal
  08/09/2026 09 AM PDT           76.73           9003         +              Normal
  08/09/2026 10 AM PDT           76.71           8957         -              Normal
  08/09/2026 11 AM PDT           76.73           9003         +              Normal
  08/09/2026 12 PM PDT           76.73           9003         0              Normal
  08/09/2026 01 PM PDT           76.71           8957         -              Normal
  08/09/2026 02 PM PDT           76.73           9003         +              Normal
  08/09/2026 03 PM PDT           76.70           8934         -              Normal
  08/09/2026 04 PM PDT           76.71           8957         +              Normal
  08/09/2026 05 PM PDT           76.72           8980         +              Normal
  08/09/2026 06 PM PDT           76.70           8934         -              Normal
  08/09/2026 07 PM PDT           76.72           8980         +              Normal
  08/09/2026 08 PM PDT           76.70           8934         -              Normal
  08/09/2026 09 PM PDT           76.71           8957         +              Normal
  08/09/2026 10 PM PDT           76.72           8980         +              Normal
  08/09/2026 11 PM PDT           76.69           8911         -              Normal
  08/10/2026 12 AM PDT           76.71           8957         +              Normal
  08/10/2026 01 AM PDT           76.71           8957         0              Normal
  08/10/2026 02 AM PDT           76.72           8980         +              Normal
  08/10/2026 03 AM PDT           76.72           8980         0              Normal
  08/10/2026 04 AM PDT           76.73           9003         +              Normal
  08/10/2026 05 AM PDT           76.71           8957         -              Normal
  08/10/2026 06 AM PDT           76.72           8980         +              Normal
  08/10/2026 07 AM PDT           76.71           8957         -              Normal
  08/10/2026 08 AM PDT           76.72           8980         +              Normal
  08/10/2026 09 AM PDT           76.71           8957         -              Normal
  08/10/2026 10 AM PDT           76.72           8980         +              Normal
  08/10/2026 11 AM PDT           76.73           9003         +              Normal
  08/10/2026 12 PM PDT           76.74           9026         +              Normal
  08/10/2026 01 PM PDT           76.74           9026         0              Normal
  08/10/2026 02 PM PDT           76.73           9003         -              Normal
  08/10/2026 03 PM PDT           76.73           9003         0              Normal
  08/10/2026 04 PM PDT           76.71           8957         -              Normal
  08/10/2026 05 PM PDT           76.72           8980         +              Normal
  08/10/2026 06 PM PDT           76.69           8911         -              Normal
  08/10/2026 07 PM PDT           76.72           8980         +              Normal
  08/10/2026 08 PM PDT           76.71           8957         -              Normal
  08/10/2026 09 PM PDT           76.70           8934         -              Normal
  08/10/2026 10 PM PDT           76.71           8957         +              Normal
  08/10/2026 11 PM PDT           76.72           8980         +              Normal
  08/11/2026 12 AM PDT           76.70           8934         -              Normal
  08/11/2026 01 AM PDT           76.72           8980         +              Normal
  08/11/2026 02 AM PDT           76.71           8957         -              Normal
  08/11/2026 03 AM PDT           76.71           8957         0              Normal
  08/11/2026 04 AM PDT           76.72           8980         +              Normal
  08/11/2026 05 AM PDT           76.72           8980         0              Normal
  08/11/2026 06 AM PDT           76.73           9003         +              Normal
  08/11/2026 07 AM PDT           76.73           9003         0              Normal
  08/11/2026 08 AM PDT           76.72           8980         -              Normal
  08/11/2026 09 AM PDT           76.72           8980         0              Normal
  08/11/2026 10 AM PDT           76.71           8957         -              Normal
  08/11/2026 11 AM PDT           76.73           9003         +              Normal
  08/11/2026 12 PM PDT           76.71           8957         -              Normal
  08/11/2026 01 PM PDT           76.72           8980         +              Normal
  08/11/2026 02 PM PDT           76.72           8980         0              Normal
  08/11/2026 03 PM PDT           76.71           8957         -              Normal
  08/11/2026 04 PM PDT           76.70           8934         -              Normal
  08/11/2026 05 PM PDT           76.69           8911         -              Normal
  08/11/2026 06 PM PDT           76.72           8980         +              Normal
  08/11/2026 07 PM PDT           76.71           8957         -              Normal
  08/11/2026 08 PM PDT           76.68           8888         -              Normal
  08/11/2026 09 PM PDT           76.72           8980         +              Normal
  08/11/2026 10 PM PDT           76.71           8957         -              Normal
  08/11/2026 11 PM PDT           76.72           8980         +              Normal
  08/12/2026 12 AM PDT           76.71           8957         -              Normal
  08/12/2026 01 AM PDT           76.73           9003         +              Normal
  08/12/2026 02 AM PDT           76.71           8957         -              Normal
  08/12/2026 03 AM PDT           76.73           9003         +              Normal
  08/12/2026 04 AM PDT           76.73           9003         0              Normal
  08/12/2026 05 AM PDT           76.73           9003         0              Normal
  08/12/2026 06 AM PDT           76.70           8934         -              Normal
  08/12/2026 07 AM PDT           76.70           8934         0              Normal
  08/12/2026 08 AM PDT           76.71           8957         +              Normal
  08/12/2026 09 AM PDT           76.70           8934         -              Normal
  08/12/2026 10 AM PDT           76.68           8888         -              Normal
  08/12/2026 11 AM PDT           76.71           8957         +              Normal
  08/12/2026 12 PM PDT           76.68           8888         -              Normal
  08/12/2026 01 PM PDT           76.71           8957         +              Normal
  08/12/2026 02 PM PDT           76.63           8772         -              Normal
  08/12/2026 03 PM PDT           76.56           8613         -              Normal
  08/12/2026 04 PM PDT           76.52           8523         -              Normal
  08/12/2026 05 PM PDT           76.48           8433         -              Normal
  08/12/2026 06 PM PDT           76.46           8388         -              Normal
  08/12/2026 07 PM PDT           76.46           8388         0              Normal
  08/12/2026 08 PM PDT           76.44           8343         -              Normal
  08/12/2026 09 PM PDT           76.45           8365         +              Normal
  08/12/2026 10 PM PDT           76.47           8410         +              Normal
  08/12/2026 11 PM PDT           76.44           8343         -              Normal
  08/13/2026 12 AM PDT           76.45           8365         +              Normal
  08/13/2026 01 AM PDT           76.44           8343         -              Normal
  08/13/2026 02 AM PDT           76.45           8365         +              Normal
  08/13/2026 03 AM PDT           76.45           8365         0              Normal
  08/13/2026 04 AM PDT           76.46           8388         +              Normal
  08/13/2026 05 AM PDT           76.46           8388         0              Normal
  08/13/2026 06 AM PDT           76.44           8343         -              Normal
  08/13/2026 07 AM PDT           76.46           8388         +              Normal
  08/13/2026 08 AM PDT           76.46           8388         0              Normal
  08/13/2026 09 AM PDT           76.47           8410         +              Normal
  08/13/2026 10 AM PDT           76.46           8388         -              Normal
  08/13/2026 11 AM PDT           76.44           8343         -              Normal
  08/13/2026 12 PM PDT           76.47           8410         +              Normal
  08/13/2026 01 PM PDT           76.46           8388         -              Normal
  08/13/2026 02 PM PDT           76.45           8365         -              Normal
  08/13/2026 03 PM PDT           76.44           8343         -              Normal
  08/13/2026 04 PM PDT           76.46           8388         +              Normal
  08/13/2026 05 PM PDT           76.44           8343         -              Normal
  08/13/2026 06 PM PDT           76.44           8343         0              Normal
  08/13/2026 07 PM PDT           76.45           8365         +              Normal
  08/13/2026 08 PM PDT           76.45           8365         0              Normal
  08/13/2026 09 PM PDT           76.46           8388         +              Normal
  08/13/2026 10 PM PDT           76.46           8388         0              Normal
  08/13/2026 11 PM PDT           76.47           8410         +              Normal
  08/14/2026 12 AM PDT           76.48           8433         +              Normal
  08/14/2026 01 AM PDT           76.47           8410         -              Normal
  08/14/2026 02 AM PDT           76.45           8365         -              Normal
  08/14/2026 03 AM PDT           76.43           8321         -              Normal
  08/14/2026 04 AM PDT           76.44           8343         +              Normal
  08/14/2026 05 AM PDT           76.41           8276         -              Normal
  08/14/2026 06 AM PDT           76.41           8276         0              Normal
  08/14/2026 07 AM PDT           76.41           8276         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  08/14/2026 08 AM PDT           76.41           8276                        Normal
  08/14/2026 09 AM PDT           76.41           8276         0              Normal
  08/14/2026 10 AM PDT           76.41           8276         0              Normal
  08/14/2026 11 AM PDT           76.41           8276         0              Normal
  08/14/2026 12 PM PDT           76.41           8276         0              Normal
  08/14/2026 01 PM PDT           76.41           8276         0              Normal
  08/14/2026 02 PM PDT           76.41           8276         0              Normal
  08/14/2026 03 PM PDT           76.41           8276         0              Normal
  08/14/2026 04 PM PDT           76.41           8276         0              Normal
  08/14/2026 05 PM PDT           76.41           8276         0              Normal
  08/14/2026 06 PM PDT           76.41           8276         0              Normal
  08/14/2026 07 PM PDT           76.41           8276         0              Normal
  08/14/2026 08 PM PDT           76.41           8276         0              Normal
  08/14/2026 09 PM PDT           76.41           8276         0              Normal
  08/14/2026 10 PM PDT           76.41           8276         0              Normal
  08/14/2026 11 PM PDT           76.41           8276         0              Normal
  08/15/2026 12 AM PDT           76.41           8276         0              Normal
  08/15/2026 01 AM PDT           76.41           8276         0              Normal
  08/15/2026 02 AM PDT           76.41           8276         0              Normal
  08/15/2026 03 AM PDT           76.41           8276         0              Normal
  08/15/2026 04 AM PDT           76.41           8276         0              Normal
  08/15/2026 05 AM PDT           76.41           8276         0              Normal
  08/15/2026 06 AM PDT           76.41           8276         0              Normal
  08/15/2026 07 AM PDT           76.41           8276         0              Normal
  08/15/2026 08 AM PDT           76.41           8276         0              Normal
  08/15/2026 09 AM PDT           76.41           8276         0              Normal
  08/15/2026 10 AM PDT           76.41           8276         0              Normal
  08/15/2026 11 AM PDT           76.41           8276         0              Normal
  08/15/2026 12 PM PDT           76.41           8276         0              Normal
  08/15/2026 01 PM PDT           76.41           8276         0              Normal
  08/15/2026 02 PM PDT           76.41           8276         0              Normal
  08/15/2026 03 PM PDT           76.41           8276         0              Normal
  08/15/2026 04 PM PDT           76.41           8276         0              Normal
  08/15/2026 05 PM PDT           76.41           8276         0              Normal
  08/15/2026 06 PM PDT           76.41           8276         0              Normal
  08/15/2026 07 PM PDT           76.41           8276         0              Normal
  08/15/2026 08 PM PDT           76.41           8276         0              Normal
  08/15/2026 09 PM PDT           76.41           8276         0              Normal
  08/15/2026 10 PM PDT           76.41           8276         0              Normal
  08/15/2026 11 PM PDT           76.41           8276         0              Normal
  08/16/2026 12 AM PDT           76.41           8276         0              Normal
  08/16/2026 01 AM PDT           76.41           8276         0              Normal
  08/16/2026 02 AM PDT           76.41           8276         0              Normal
  08/16/2026 03 AM PDT           76.41           8276         0              Normal
  08/16/2026 04 AM PDT           76.41           8276         0              Normal
  08/16/2026 05 AM PDT           76.41           8276         0              Normal
  08/16/2026 06 AM PDT           76.41           8276         0              Normal
  08/16/2026 07 AM PDT           76.41           8276         0              Normal
  08/16/2026 08 AM PDT           76.41           8276         0              Normal
  08/16/2026 09 AM PDT           76.41           8276         0              Normal
  08/16/2026 10 AM PDT           76.41           8276         0              Normal
  08/16/2026 11 AM PDT           76.41           8276         0              Normal
  08/16/2026 12 PM PDT           76.41           8276         0              Normal
  08/16/2026 01 PM PDT           76.41           8276         0              Normal
  08/16/2026 02 PM PDT           76.41           8276         0              Normal
  08/16/2026 03 PM PDT           76.41           8276         0              Normal
  08/16/2026 04 PM PDT           76.41           8276         0              Normal
  08/16/2026 05 PM PDT           76.41           8276         0              Normal
  08/16/2026 06 PM PDT           76.41           8276         0              Normal
  08/16/2026 07 PM PDT           76.41           8276         0              Normal
  08/16/2026 08 PM PDT           76.41           8276         0              Normal
  08/16/2026 09 PM PDT           76.41           8276         0              Normal
  08/16/2026 10 PM PDT           76.41           8276         0              Normal
  08/16/2026 11 PM PDT           76.41           8276         0              Normal
  08/17/2026 12 AM PDT           76.41           8276         0              Normal
  08/17/2026 01 AM PDT           76.41           8276         0              Normal
  08/17/2026 02 AM PDT           76.41           8276         0              Normal
  08/17/2026 03 AM PDT           76.41           8276         0              Normal
  08/17/2026 04 AM PDT           76.41           8276         0              Normal
  08/17/2026 05 AM PDT           76.41           8276         0              Normal
  08/17/2026 06 AM PDT           76.41           8276         0              Normal
  08/17/2026 07 AM PDT           76.41           8276         0              Normal
  08/17/2026 08 AM PDT           76.41           8276         0              Normal
  08/17/2026 09 AM PDT           76.41           8276         0              Normal
  08/17/2026 10 AM PDT           76.41           8276         0              Normal
  08/17/2026 11 AM PDT           76.41           8276         0              Normal
  08/17/2026 12 PM PDT           76.41           8276         0              Normal
  08/17/2026 01 PM PDT           76.41           8276         0              Normal
  08/17/2026 02 PM PDT           76.41           8276         0              Normal
  08/17/2026 03 PM PDT           76.41           8276         0              Normal
  08/17/2026 04 PM PDT           76.41           8276         0              Normal
  08/17/2026 05 PM PDT           76.41           8276         0              Normal
  08/17/2026 06 PM PDT           76.41           8276         0              Normal
  08/17/2026 07 PM PDT           76.41           8276         0              Normal
  08/17/2026 08 PM PDT           76.41           8276         0              Normal
  08/17/2026 09 PM PDT           76.41           8276         0              Normal
  08/17/2026 10 PM PDT           76.40           8254         -              Normal
  08/17/2026 11 PM PDT           76.40           8254         0              Normal
  08/18/2026 12 AM PDT           76.40           8254         0              Normal
  08/18/2026 01 AM PDT           76.40           8254         0              Normal
  08/18/2026 02 AM PDT           76.40           8254         0              Normal
  08/18/2026 03 AM PDT           76.40           8254         0              Normal
  08/18/2026 04 AM PDT           76.40           8254         0              Normal
  08/18/2026 05 AM PDT           76.40           8254         0              Normal
  08/18/2026 06 AM PDT           76.40           8254         0              Normal
  08/18/2026 07 AM PDT           76.40           8254         0              Normal
  08/18/2026 08 AM PDT           76.40           8254         0              Normal
  08/18/2026 09 AM PDT           76.40           8254         0              Normal
  08/18/2026 10 AM PDT           76.40           8254         0              Normal
  08/18/2026 11 AM PDT           76.40           8254         0              Normal
  08/18/2026 12 PM PDT           76.40           8254         0              Normal
  08/18/2026 01 PM PDT           76.40           8254         0              Normal
  08/18/2026 02 PM PDT           76.40           8254         0              Normal
  08/18/2026 03 PM PDT           76.40           8254         0              Normal
  08/18/2026 04 PM PDT           76.40           8254         0              Normal
  08/18/2026 05 PM PDT           76.40           8254         0              Normal
  08/18/2026 06 PM PDT           76.40           8254         0              Normal
  08/18/2026 07 PM PDT           76.40           8254         0              Normal
  08/18/2026 08 PM PDT           76.40           8254         0              Normal
  08/18/2026 09 PM PDT           76.40           8254         0              Normal
  08/18/2026 10 PM PDT           76.40           8254         0              Normal
  08/18/2026 11 PM PDT           76.40           8254         0              Normal
  08/19/2026 12 AM PDT           76.40           8254         0              Normal
  08/19/2026 01 AM PDT           76.40           8254         0              Normal
  08/19/2026 02 AM PDT           76.40           8254         0              Normal
  08/19/2026 03 AM PDT           76.40           8254         0              Normal
  08/19/2026 04 AM PDT           76.40           8254         0              Normal
  08/19/2026 05 AM PDT           76.40           8254         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.