FEATHER RIVER - GRIDLEY (GRIC1)
Latitude: 39.37º NLongitude: 121.65º WElevation: 92 Feet
Location: Butte County in CaliforniaBulletin Group: Lower SacramentoRiver Group: Feather Yuba
Issuance Time: Jan 20 2026 at 7:11 AM PSTNext Issuance: Jan 20 2026 at 3:00 PM PST
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:  01/20/2026 at 07:11 AM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  01/17/2026 at 12:00 AM PST
# Maximum Observed Stage:                       74.68 Feet
# Maximum Observed Flow:                        4726 cfs
#
# Earliest Date & Time of Maximum Forecast:     01/20/2026 at 07:00 AM PST
# Maximum Forecast Stage:                       73.33 Feet
# Maximum Forecast Flow:                        2632 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  01/15/2026 07 AM PST           74.66           4691                        Normal
  01/15/2026 08 AM PST           74.66           4691         0              Normal
  01/15/2026 09 AM PST           74.66           4691         0              Normal
  01/15/2026 10 AM PST           74.66           4691         0              Normal
  01/15/2026 11 AM PST           74.66           4691         0              Normal
  01/15/2026 12 PM PST           74.66           4691         0              Normal
  01/15/2026 01 PM PST           74.66           4691         0              Normal
  01/15/2026 02 PM PST           74.66           4691         0              Normal
  01/15/2026 03 PM PST           74.66           4691         0              Normal
  01/15/2026 04 PM PST           74.66           4691         0              Normal
  01/15/2026 05 PM PST           74.66           4691         0              Normal
  01/15/2026 06 PM PST           74.66           4691         0              Normal
  01/15/2026 07 PM PST           74.67           4708         +              Normal
  01/15/2026 08 PM PST           74.66           4691         -              Normal
  01/15/2026 09 PM PST           74.65           4673         -              Normal
  01/15/2026 10 PM PST           74.67           4708         +              Normal
  01/15/2026 11 PM PST           74.65           4673         -              Normal
  01/16/2026 12 AM PST           74.67           4708         +              Normal
  01/16/2026 01 AM PST           74.66           4691         -              Normal
  01/16/2026 02 AM PST           74.68           4726         +              Normal
  01/16/2026 03 AM PST           74.68           4726         0              Normal
  01/16/2026 04 AM PST           74.67           4708         -              Normal
  01/16/2026 05 AM PST           74.68           4726         +              Normal
  01/16/2026 06 AM PST           74.67           4708         -              Normal
  01/16/2026 07 AM PST           74.68           4726         +              Normal
  01/16/2026 08 AM PST           74.68           4726         0              Normal
  01/16/2026 09 AM PST           74.67           4708         -              Normal
  01/16/2026 10 AM PST           74.68           4726         +              Normal
  01/16/2026 11 AM PST           74.66           4691         -              Normal
  01/16/2026 12 PM PST           74.67           4708         +              Normal
  01/16/2026 01 PM PST           74.67           4708         0              Normal
  01/16/2026 02 PM PST           74.67           4708         0              Normal
  01/16/2026 03 PM PST           74.66           4691         -              Normal
  01/16/2026 04 PM PST           74.66           4691         0              Normal
  01/16/2026 05 PM PST           74.66           4691         0              Normal
  01/16/2026 06 PM PST           74.65           4673         -              Normal
  01/16/2026 07 PM PST           74.66           4691         +              Normal
  01/16/2026 08 PM PST           74.66           4691         0              Normal
  01/16/2026 09 PM PST           74.65           4673         -              Normal
  01/16/2026 10 PM PST           74.67           4708         +              Normal
  01/16/2026 11 PM PST           74.66           4691         -              Normal
  01/17/2026 12 AM PST           74.68           4726         +              Normal
  01/17/2026 01 AM PST           74.67           4708         -              Normal
  01/17/2026 02 AM PST           74.67           4708         0              Normal
  01/17/2026 03 AM PST           74.67           4708         0              Normal
  01/17/2026 04 AM PST           74.67           4708         0              Normal
  01/17/2026 05 AM PST           74.66           4691         -              Normal
  01/17/2026 06 AM PST           74.64           4656         -              Normal
  01/17/2026 07 AM PST           74.67           4708         +              Normal
  01/17/2026 08 AM PST           74.67           4708         0              Normal
  01/17/2026 09 AM PST           74.66           4691         -              Normal
  01/17/2026 10 AM PST           74.67           4708         +              Normal
  01/17/2026 11 AM PST           74.65           4673         -              Normal
  01/17/2026 12 PM PST           74.66           4691         +              Normal
  01/17/2026 01 PM PST           74.64           4656         -              Normal
  01/17/2026 02 PM PST           74.47           4365         -              Normal
  01/17/2026 03 PM PST           74.23           3967         -              Normal
  01/17/2026 04 PM PST           74.09           3744         -              Normal
  01/17/2026 05 PM PST           74.03           3649         -              Normal
  01/17/2026 06 PM PST           74.00           3603         -              Normal
  01/17/2026 07 PM PST           73.98           3572         -              Normal
  01/17/2026 08 PM PST           73.99           3587         +              Normal
  01/17/2026 09 PM PST           73.98           3572         -              Normal
  01/17/2026 10 PM PST           73.96           3541         -              Normal
  01/17/2026 11 PM PST           73.96           3541         0              Normal
  01/18/2026 12 AM PST           73.96           3541         0              Normal
  01/18/2026 01 AM PST           73.96           3541         0              Normal
  01/18/2026 02 AM PST           73.97           3556         +              Normal
  01/18/2026 03 AM PST           73.97           3556         0              Normal
  01/18/2026 04 AM PST           73.96           3541         -              Normal
  01/18/2026 05 AM PST           73.97           3556         +              Normal
  01/18/2026 06 AM PST           73.96           3541         -              Normal
  01/18/2026 07 AM PST           73.96           3541         0              Normal
  01/18/2026 08 AM PST           73.96           3541         0              Normal
  01/18/2026 09 AM PST           73.96           3541         0              Normal
  01/18/2026 10 AM PST           73.95           3526         -              Normal
  01/18/2026 11 AM PST           73.95           3526         0              Normal
  01/18/2026 12 PM PST           73.94           3510         -              Normal
  01/18/2026 01 PM PST           73.93           3495         -              Normal
  01/18/2026 02 PM PST           73.87           3404         -              Normal
  01/18/2026 03 PM PST           73.76           3239         -              Normal
  01/18/2026 04 PM PST           73.71           3166         -              Normal
  01/18/2026 05 PM PST           73.68           3122         -              Normal
  01/18/2026 06 PM PST           73.68           3122         0              Normal
  01/18/2026 07 PM PST           73.68           3122         0              Normal
  01/18/2026 08 PM PST           73.67           3108         -              Normal
  01/18/2026 09 PM PST           73.67           3108         0              Normal
  01/18/2026 10 PM PST           73.68           3122         +              Normal
  01/18/2026 11 PM PST           73.67           3108         -              Normal
  01/19/2026 12 AM PST           73.68           3122         +              Normal
  01/19/2026 01 AM PST           73.67           3108         -              Normal
  01/19/2026 02 AM PST           73.68           3122         +              Normal
  01/19/2026 03 AM PST           73.67           3108         -              Normal
  01/19/2026 04 AM PST           73.67           3108         0              Normal
  01/19/2026 05 AM PST           73.68           3122         +              Normal
  01/19/2026 06 AM PST           73.67           3108         -              Normal
  01/19/2026 07 AM PST           73.67           3108         0              Normal
  01/19/2026 08 AM PST           73.67           3108         0              Normal
  01/19/2026 09 AM PST           73.67           3108         0              Normal
  01/19/2026 10 AM PST           73.66           3093         -              Normal
  01/19/2026 11 AM PST           73.67           3108         +              Normal
  01/19/2026 12 PM PST           73.67           3108         0              Normal
  01/19/2026 01 PM PST           73.67           3108         0              Normal
  01/19/2026 02 PM PST           73.62           3035         -              Normal
  01/19/2026 03 PM PST           73.50           2865         -              Normal
  01/19/2026 04 PM PST           73.42           2754         -              Normal
  01/19/2026 05 PM PST           73.38           2699         -              Normal
  01/19/2026 06 PM PST           73.36           2672         -              Normal
  01/19/2026 07 PM PST           73.35           2659         -              Normal
  01/19/2026 08 PM PST           73.34           2645         -              Normal
  01/19/2026 09 PM PST           73.35           2659         +              Normal
  01/19/2026 10 PM PST           73.34           2645         -              Normal
  01/19/2026 11 PM PST           73.33           2632         -              Normal
  01/20/2026 12 AM PST           73.34           2645         +              Normal
  01/20/2026 01 AM PST           73.33           2632         -              Normal
  01/20/2026 02 AM PST           73.33           2632         0              Normal
  01/20/2026 03 AM PST           73.33           2632         0              Normal
  01/20/2026 04 AM PST           73.33           2632         0              Normal
  01/20/2026 05 AM PST           73.33           2632         0              Normal
  01/20/2026 06 AM PST           73.33           2632         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  01/20/2026 07 AM PST           73.33           2632                        Normal
  01/20/2026 08 AM PST           73.33           2632         0              Normal
  01/20/2026 09 AM PST           73.33           2632         0              Normal
  01/20/2026 10 AM PST           73.33           2632         0              Normal
  01/20/2026 11 AM PST           73.33           2632         0              Normal
  01/20/2026 12 PM PST           73.33           2632         0              Normal
  01/20/2026 01 PM PST           73.33           2632         0              Normal
  01/20/2026 02 PM PST           73.21           2472         -              Normal
  01/20/2026 03 PM PST           73.03           2241         -              Normal
  01/20/2026 04 PM PST           72.97           2166         -              Normal
  01/20/2026 05 PM PST           72.95           2142         -              Normal
  01/20/2026 06 PM PST           72.95           2142         0              Normal
  01/20/2026 07 PM PST           72.94           2129         -              Normal
  01/20/2026 08 PM PST           72.94           2129         0              Normal
  01/20/2026 09 PM PST           72.94           2129         0              Normal
  01/20/2026 10 PM PST           72.94           2129         0              Normal
  01/20/2026 11 PM PST           72.94           2129         0              Normal
  01/21/2026 12 AM PST           72.94           2129         0              Normal
  01/21/2026 01 AM PST           72.94           2129         0              Normal
  01/21/2026 02 AM PST           72.94           2129         0              Normal
  01/21/2026 03 AM PST           72.94           2129         0              Normal
  01/21/2026 04 AM PST           72.94           2129         0              Normal
  01/21/2026 05 AM PST           72.94           2129         0              Normal
  01/21/2026 06 AM PST           72.94           2129         0              Normal
  01/21/2026 07 AM PST           72.94           2129         0              Normal
  01/21/2026 08 AM PST           72.94           2129         0              Normal
  01/21/2026 09 AM PST           72.94           2129         0              Normal
  01/21/2026 10 AM PST           72.95           2142         +              Normal
  01/21/2026 11 AM PST           72.95           2142         0              Normal
  01/21/2026 12 PM PST           72.95           2142         0              Normal
  01/21/2026 01 PM PST           72.95           2142         0              Normal
  01/21/2026 02 PM PST           72.95           2142         0              Normal
  01/21/2026 03 PM PST           72.95           2142         0              Normal
  01/21/2026 04 PM PST           72.95           2142         0              Normal
  01/21/2026 05 PM PST           72.95           2142         0              Normal
  01/21/2026 06 PM PST           72.95           2142         0              Normal
  01/21/2026 07 PM PST           72.95           2142         0              Normal
  01/21/2026 08 PM PST           72.95           2142         0              Normal
  01/21/2026 09 PM PST           72.95           2142         0              Normal
  01/21/2026 10 PM PST           72.95           2142         0              Normal
  01/21/2026 11 PM PST           72.95           2142         0              Normal
  01/22/2026 12 AM PST           72.95           2142         0              Normal
  01/22/2026 01 AM PST           72.95           2142         0              Normal
  01/22/2026 02 AM PST           72.95           2142         0              Normal
  01/22/2026 03 AM PST           72.95           2142         0              Normal
  01/22/2026 04 AM PST           72.95           2142         0              Normal
  01/22/2026 05 AM PST           72.95           2142         0              Normal
  01/22/2026 06 AM PST           72.95           2142         0              Normal
  01/22/2026 07 AM PST           72.95           2142         0              Normal
  01/22/2026 08 AM PST           72.95           2142         0              Normal
  01/22/2026 09 AM PST           72.95           2142         0              Normal
  01/22/2026 10 AM PST           72.95           2142         0              Normal
  01/22/2026 11 AM PST           72.95           2142         0              Normal
  01/22/2026 12 PM PST           72.95           2142         0              Normal
  01/22/2026 01 PM PST           72.95           2142         0              Normal
  01/22/2026 02 PM PST           72.95           2142         0              Normal
  01/22/2026 03 PM PST           72.95           2142         0              Normal
  01/22/2026 04 PM PST           72.95           2142         0              Normal
  01/22/2026 05 PM PST           72.95           2142         0              Normal
  01/22/2026 06 PM PST           72.95           2142         0              Normal
  01/22/2026 07 PM PST           72.95           2142         0              Normal
  01/22/2026 08 PM PST           72.95           2142         0              Normal
  01/22/2026 09 PM PST           72.95           2142         0              Normal
  01/22/2026 10 PM PST           72.95           2142         0              Normal
  01/22/2026 11 PM PST           72.95           2142         0              Normal
  01/23/2026 12 AM PST           72.95           2142         0              Normal
  01/23/2026 01 AM PST           72.95           2142         0              Normal
  01/23/2026 02 AM PST           72.95           2142         0              Normal
  01/23/2026 03 AM PST           72.95           2142         0              Normal
  01/23/2026 04 AM PST           72.95           2142         0              Normal
  01/23/2026 05 AM PST           72.95           2142         0              Normal
  01/23/2026 06 AM PST           72.95           2142         0              Normal
  01/23/2026 07 AM PST           72.95           2142         0              Normal
  01/23/2026 08 AM PST           72.95           2142         0              Normal
  01/23/2026 09 AM PST           72.95           2142         0              Normal
  01/23/2026 10 AM PST           72.95           2142         0              Normal
  01/23/2026 11 AM PST           72.95           2142         0              Normal
  01/23/2026 12 PM PST           72.95           2142         0              Normal
  01/23/2026 01 PM PST           72.95           2142         0              Normal
  01/23/2026 02 PM PST           72.95           2142         0              Normal
  01/23/2026 03 PM PST           72.95           2142         0              Normal
  01/23/2026 04 PM PST           72.95           2142         0              Normal
  01/23/2026 05 PM PST           72.95           2142         0              Normal
  01/23/2026 06 PM PST           72.95           2142         0              Normal
  01/23/2026 07 PM PST           72.95           2142         0              Normal
  01/23/2026 08 PM PST           72.95           2142         0              Normal
  01/23/2026 09 PM PST           72.95           2142         0              Normal
  01/23/2026 10 PM PST           72.95           2142         0              Normal
  01/23/2026 11 PM PST           72.95           2142         0              Normal
  01/24/2026 12 AM PST           72.95           2142         0              Normal
  01/24/2026 01 AM PST           72.95           2142         0              Normal
  01/24/2026 02 AM PST           72.95           2142         0              Normal
  01/24/2026 03 AM PST           72.95           2142         0              Normal
  01/24/2026 04 AM PST           72.95           2142         0              Normal
  01/24/2026 05 AM PST           72.95           2142         0              Normal
  01/24/2026 06 AM PST           72.95           2142         0              Normal
  01/24/2026 07 AM PST           72.95           2142         0              Normal
  01/24/2026 08 AM PST           72.95           2142         0              Normal
  01/24/2026 09 AM PST           72.95           2142         0              Normal
  01/24/2026 10 AM PST           72.95           2142         0              Normal
  01/24/2026 11 AM PST           72.95           2142         0              Normal
  01/24/2026 12 PM PST           72.95           2142         0              Normal
  01/24/2026 01 PM PST           72.95           2142         0              Normal
  01/24/2026 02 PM PST           72.95           2142         0              Normal
  01/24/2026 03 PM PST           72.95           2142         0              Normal
  01/24/2026 04 PM PST           72.95           2142         0              Normal
  01/24/2026 05 PM PST           72.95           2142         0              Normal
  01/24/2026 06 PM PST           72.95           2142         0              Normal
  01/24/2026 07 PM PST           72.96           2154         +              Normal
  01/24/2026 08 PM PST           72.96           2154         0              Normal
  01/24/2026 09 PM PST           72.96           2154         0              Normal
  01/24/2026 10 PM PST           72.96           2154         0              Normal
  01/24/2026 11 PM PST           72.96           2154         0              Normal
  01/25/2026 12 AM PST           72.96           2154         0              Normal
  01/25/2026 01 AM PST           72.96           2154         0              Normal
  01/25/2026 02 AM PST           72.96           2154         0              Normal
  01/25/2026 03 AM PST           72.96           2154         0              Normal
  01/25/2026 04 AM PST           72.96           2154         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.