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: May 02 2026 at 8:10 AM PDTNext Issuance: May 03 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:  05/02/2026 at 08:10 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  04/27/2026 at 09:00 AM PDT
# Maximum Observed Stage:                       74.67 Feet
# Maximum Observed Flow:                        4816 cfs
#
# Earliest Date & Time of Maximum Forecast:     05/02/2026 at 08:00 AM PDT
# Maximum Forecast Stage:                       72.44 Feet
# Maximum Forecast Flow:                        1657 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  04/27/2026 08 AM PDT           74.67           4816                        Normal
  04/27/2026 09 AM PDT           74.67           4816         0              Normal
  04/27/2026 10 AM PDT           74.63           4747         -              Normal
  04/27/2026 11 AM PDT           74.47           4473         -              Normal
  04/27/2026 12 PM PDT           74.26           4124         -              Normal
  04/27/2026 01 PM PDT           74.00           3712         -              Normal
  04/27/2026 02 PM PDT           73.71           3275         -              Normal
  04/27/2026 03 PM PDT           73.44           2889         -              Normal
  04/27/2026 04 PM PDT           73.29           2685         -              Normal
  04/27/2026 05 PM PDT           73.22           2592         -              Normal
  04/27/2026 06 PM PDT           73.18           2540         -              Normal
  04/27/2026 07 PM PDT           73.17           2527         -              Normal
  04/27/2026 08 PM PDT           73.17           2527         0              Normal
  04/27/2026 09 PM PDT           73.16           2514         -              Normal
  04/27/2026 10 PM PDT           73.16           2514         0              Normal
  04/27/2026 11 PM PDT           73.14           2488         -              Normal
  04/28/2026 12 AM PDT           73.15           2501         +              Normal
  04/28/2026 01 AM PDT           73.15           2501         0              Normal
  04/28/2026 02 AM PDT           73.13           2475         -              Normal
  04/28/2026 03 AM PDT           73.14           2488         +              Normal
  04/28/2026 04 AM PDT           73.13           2475         -              Normal
  04/28/2026 05 AM PDT           73.13           2475         0              Normal
  04/28/2026 06 AM PDT           73.13           2475         0              Normal
  04/28/2026 07 AM PDT           73.14           2488         +              Normal
  04/28/2026 08 AM PDT           73.12           2462         -              Normal
  04/28/2026 09 AM PDT           73.12           2462         0              Normal
  04/28/2026 10 AM PDT           73.12           2462         0              Normal
  04/28/2026 11 AM PDT           73.13           2475         +              Normal
  04/28/2026 12 PM PDT           73.12           2462         -              Normal
  04/28/2026 01 PM PDT           73.13           2475         +              Normal
  04/28/2026 02 PM PDT           73.12           2462         -              Normal
  04/28/2026 03 PM PDT           73.07           2398         -              Normal
  04/28/2026 04 PM PDT           73.03           2347         -              Normal
  04/28/2026 05 PM PDT           73.02           2335         -              Normal
  04/28/2026 06 PM PDT           73.00           2310         -              Normal
  04/28/2026 07 PM PDT           72.99           2297         -              Normal
  04/28/2026 08 PM PDT           72.99           2297         0              Normal
  04/28/2026 09 PM PDT           73.00           2310         +              Normal
  04/28/2026 10 PM PDT           73.00           2310         0              Normal
  04/28/2026 11 PM PDT           72.99           2297         -              Normal
  04/29/2026 12 AM PDT           72.99           2297         0              Normal
  04/29/2026 01 AM PDT           72.98           2285         -              Normal
  04/29/2026 02 AM PDT           72.96           2260         -              Normal
  04/29/2026 03 AM PDT           72.96           2260         0              Normal
  04/29/2026 04 AM PDT           72.95           2247         -              Normal
  04/29/2026 05 AM PDT           72.95           2247         0              Normal
  04/29/2026 06 AM PDT           72.96           2260         +              Normal
  04/29/2026 07 AM PDT           72.96           2260         0              Normal
  04/29/2026 08 AM PDT           72.97           2272         +              Normal
  04/29/2026 09 AM PDT           72.97           2272         0              Normal
  04/29/2026 10 AM PDT           72.97           2272         0              Normal
  04/29/2026 11 AM PDT           72.97           2272         0              Normal
  04/29/2026 12 PM PDT           72.95           2247         -              Normal
  04/29/2026 01 PM PDT           72.95           2247         0              Normal
  04/29/2026 02 PM PDT           72.94           2235         -              Normal
  04/29/2026 03 PM PDT           72.89           2174         -              Normal
  04/29/2026 04 PM PDT           72.85           2125         -              Normal
  04/29/2026 05 PM PDT           72.83           2101         -              Normal
  04/29/2026 06 PM PDT           72.83           2101         0              Normal
  04/29/2026 07 PM PDT           72.82           2089         -              Normal
  04/29/2026 08 PM PDT           72.82           2089         0              Normal
  04/29/2026 09 PM PDT           72.82           2089         0              Normal
  04/29/2026 10 PM PDT           72.82           2089         0              Normal
  04/29/2026 11 PM PDT           72.81           2078         -              Normal
  04/30/2026 12 AM PDT           72.81           2078         0              Normal
  04/30/2026 01 AM PDT           72.82           2089         +              Normal
  04/30/2026 02 AM PDT           72.80           2066         -              Normal
  04/30/2026 03 AM PDT           72.81           2078         +              Normal
  04/30/2026 04 AM PDT           72.81           2078         0              Normal
  04/30/2026 05 AM PDT           72.82           2089         +              Normal
  04/30/2026 06 AM PDT           72.81           2078         -              Normal
  04/30/2026 07 AM PDT           72.80           2066         -              Normal
  04/30/2026 08 AM PDT           72.81           2078         +              Normal
  04/30/2026 09 AM PDT           72.81           2078         0              Normal
  04/30/2026 10 AM PDT           72.82           2089         +              Normal
  04/30/2026 11 AM PDT           72.81           2078         -              Normal
  04/30/2026 12 PM PDT           72.80           2066         -              Normal
  04/30/2026 01 PM PDT           72.82           2089         +              Normal
  04/30/2026 02 PM PDT           72.81           2078         -              Normal
  04/30/2026 03 PM PDT           72.77           2030         -              Normal
  04/30/2026 04 PM PDT           72.71           1959         -              Normal
  04/30/2026 05 PM PDT           72.69           1936         -              Normal
  04/30/2026 06 PM PDT           72.67           1913         -              Normal
  04/30/2026 07 PM PDT           72.67           1913         0              Normal
  04/30/2026 08 PM PDT           72.68           1925         +              Normal
  04/30/2026 09 PM PDT           72.66           1902         -              Normal
  04/30/2026 10 PM PDT           72.66           1902         0              Normal
  04/30/2026 11 PM PDT           72.65           1890         -              Normal
  05/01/2026 12 AM PDT           72.63           1867         -              Normal
  05/01/2026 01 AM PDT           72.64           1879         +              Normal
  05/01/2026 02 AM PDT           72.63           1867         -              Normal
  05/01/2026 03 AM PDT           72.64           1879         +              Normal
  05/01/2026 04 AM PDT           72.63           1867         -              Normal
  05/01/2026 05 AM PDT           72.62           1856         -              Normal
  05/01/2026 06 AM PDT           72.63           1867         +              Normal
  05/01/2026 07 AM PDT           72.63           1867         0              Normal
  05/01/2026 08 AM PDT           72.64           1879         +              Normal
  05/01/2026 09 AM PDT           72.64           1879         0              Normal
  05/01/2026 10 AM PDT           72.64           1879         0              Normal
  05/01/2026 11 AM PDT           72.62           1856         -              Normal
  05/01/2026 12 PM PDT           72.63           1867         +              Normal
  05/01/2026 01 PM PDT           72.63           1867         0              Normal
  05/01/2026 02 PM PDT           72.51           1734         -              Normal
  05/01/2026 03 PM PDT           72.57           1800         +              Normal
  05/01/2026 04 PM PDT           72.53           1756         -              Normal
  05/01/2026 05 PM PDT           72.50           1723         -              Normal
  05/01/2026 06 PM PDT           72.49           1712         -              Normal
  05/01/2026 07 PM PDT           72.49           1712         0              Normal
  05/01/2026 08 PM PDT           72.48           1701         -              Normal
  05/01/2026 09 PM PDT           72.48           1701         0              Normal
  05/01/2026 10 PM PDT           72.46           1679         -              Normal
  05/01/2026 11 PM PDT           72.45           1668         -              Normal
  05/02/2026 12 AM PDT           72.45           1668         0              Normal
  05/02/2026 01 AM PDT           72.44           1657         -              Normal
  05/02/2026 02 AM PDT           72.45           1668         +              Normal
  05/02/2026 03 AM PDT           72.44           1657         -              Normal
  05/02/2026 04 AM PDT           72.45           1668         +              Normal
  05/02/2026 05 AM PDT           72.44           1657         -              Normal
  05/02/2026 06 AM PDT           72.44           1657         0              Normal
  05/02/2026 07 AM PDT           72.44           1657         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  05/02/2026 08 AM PDT           72.44           1657                        Normal
  05/02/2026 09 AM PDT           72.44           1657         0              Normal
  05/02/2026 10 AM PDT           72.44           1657         0              Normal
  05/02/2026 11 AM PDT           72.44           1657         0              Normal
  05/02/2026 12 PM PDT           72.44           1657         0              Normal
  05/02/2026 01 PM PDT           72.44           1657         0              Normal
  05/02/2026 02 PM PDT           72.38           1593         -              Normal
  05/02/2026 03 PM PDT           72.29           1499         -              Normal
  05/02/2026 04 PM PDT           72.26           1468         -              Normal
  05/02/2026 05 PM PDT           72.25           1458         -              Normal
  05/02/2026 06 PM PDT           72.25           1458         0              Normal
  05/02/2026 07 PM PDT           72.25           1458         0              Normal
  05/02/2026 08 PM PDT           72.25           1458         0              Normal
  05/02/2026 09 PM PDT           72.25           1458         0              Normal
  05/02/2026 10 PM PDT           72.25           1458         0              Normal
  05/02/2026 11 PM PDT           72.25           1458         0              Normal
  05/03/2026 12 AM PDT           72.25           1458         0              Normal
  05/03/2026 01 AM PDT           72.25           1458         0              Normal
  05/03/2026 02 AM PDT           72.25           1458         0              Normal
  05/03/2026 03 AM PDT           72.25           1458         0              Normal
  05/03/2026 04 AM PDT           72.25           1458         0              Normal
  05/03/2026 05 AM PDT           72.25           1458         0              Normal
  05/03/2026 06 AM PDT           72.25           1458         0              Normal
  05/03/2026 07 AM PDT           72.25           1458         0              Normal
  05/03/2026 08 AM PDT           72.25           1458         0              Normal
  05/03/2026 09 AM PDT           72.25           1458         0              Normal
  05/03/2026 10 AM PDT           72.25           1458         0              Normal
  05/03/2026 11 AM PDT           72.25           1458         0              Normal
  05/03/2026 12 PM PDT           72.25           1458         0              Normal
  05/03/2026 01 PM PDT           72.25           1458         0              Normal
  05/03/2026 02 PM PDT           72.18           1388         -              Normal
  05/03/2026 03 PM PDT           72.09           1300         -              Normal
  05/03/2026 04 PM PDT           72.06           1271         -              Normal
  05/03/2026 05 PM PDT           72.05           1262         -              Normal
  05/03/2026 06 PM PDT           72.05           1262         0              Normal
  05/03/2026 07 PM PDT           72.05           1262         0              Normal
  05/03/2026 08 PM PDT           72.05           1262         0              Normal
  05/03/2026 09 PM PDT           72.05           1262         0              Normal
  05/03/2026 10 PM PDT           72.05           1262         0              Normal
  05/03/2026 11 PM PDT           72.05           1262         0              Normal
  05/04/2026 12 AM PDT           72.05           1262         0              Normal
  05/04/2026 01 AM PDT           72.05           1262         0              Normal
  05/04/2026 02 AM PDT           72.05           1262         0              Normal
  05/04/2026 03 AM PDT           72.05           1262         0              Normal
  05/04/2026 04 AM PDT           72.05           1262         0              Normal
  05/04/2026 05 AM PDT           72.05           1262         0              Normal
  05/04/2026 06 AM PDT           72.05           1262         0              Normal
  05/04/2026 07 AM PDT           72.05           1262         0              Normal
  05/04/2026 08 AM PDT           72.05           1262         0              Normal
  05/04/2026 09 AM PDT           72.05           1262         0              Normal
  05/04/2026 10 AM PDT           72.05           1262         0              Normal
  05/04/2026 11 AM PDT           72.05           1262         0              Normal
  05/04/2026 12 PM PDT           72.05           1262         0              Normal
  05/04/2026 01 PM PDT           72.05           1262         0              Normal
  05/04/2026 02 PM PDT           71.98           1196         -              Normal
  05/04/2026 03 PM PDT           71.88           1105         -              Normal
  05/04/2026 04 PM PDT           71.85           1078         -              Normal
  05/04/2026 05 PM PDT           71.83           1060         -              Normal
  05/04/2026 06 PM PDT           71.83           1060         0              Normal
  05/04/2026 07 PM PDT           71.83           1060         0              Normal
  05/04/2026 08 PM PDT           71.83           1060         0              Normal
  05/04/2026 09 PM PDT           71.83           1060         0              Normal
  05/04/2026 10 PM PDT           71.84           1069         +              Normal
  05/04/2026 11 PM PDT           71.84           1069         0              Normal
  05/05/2026 12 AM PDT           71.84           1069         0              Normal
  05/05/2026 01 AM PDT           71.84           1069         0              Normal
  05/05/2026 02 AM PDT           71.84           1069         0              Normal
  05/05/2026 03 AM PDT           71.84           1069         0              Normal
  05/05/2026 04 AM PDT           71.84           1069         0              Normal
  05/05/2026 05 AM PDT           71.84           1069         0              Normal
  05/05/2026 06 AM PDT           71.84           1069         0              Normal
  05/05/2026 07 AM PDT           71.83           1060         -              Normal
  05/05/2026 08 AM PDT           71.83           1060         0              Normal
  05/05/2026 09 AM PDT           71.83           1060         0              Normal
  05/05/2026 10 AM PDT           71.83           1060         0              Normal
  05/05/2026 11 AM PDT           71.83           1060         0              Normal
  05/05/2026 12 PM PDT           71.83           1060         0              Normal
  05/05/2026 01 PM PDT           71.83           1060         0              Normal
  05/05/2026 02 PM PDT           71.81           1043         -              Normal
  05/05/2026 03 PM PDT           71.79           1025         -              Normal
  05/05/2026 04 PM PDT           71.78           1016         -              Normal
  05/05/2026 05 PM PDT           71.78           1016         0              Normal
  05/05/2026 06 PM PDT           71.77           1008         -              Normal
  05/05/2026 07 PM PDT           71.77           1008         0              Normal
  05/05/2026 08 PM PDT           71.77           1008         0              Normal
  05/05/2026 09 PM PDT           71.77           1008         0              Normal
  05/05/2026 10 PM PDT           71.77           1008         0              Normal
  05/05/2026 11 PM PDT           71.77           1008         0              Normal
  05/06/2026 12 AM PDT           71.77           1008         0              Normal
  05/06/2026 01 AM PDT           71.77           1008         0              Normal
  05/06/2026 02 AM PDT           71.77           1008         0              Normal
  05/06/2026 03 AM PDT           71.77           1008         0              Normal
  05/06/2026 04 AM PDT           71.77           1008         0              Normal
  05/06/2026 05 AM PDT           71.77           1008         0              Normal
  05/06/2026 06 AM PDT           71.77           1008         0              Normal
  05/06/2026 07 AM PDT           71.77           1008         0              Normal
  05/06/2026 08 AM PDT           71.77           1008         0              Normal
  05/06/2026 09 AM PDT           71.77           1008         0              Normal
  05/06/2026 10 AM PDT           71.77           1008         0              Normal
  05/06/2026 11 AM PDT           71.77           1008         0              Normal
  05/06/2026 12 PM PDT           71.77           1008         0              Normal
  05/06/2026 01 PM PDT           71.77           1008         0              Normal
  05/06/2026 02 PM PDT           71.77           1008         0              Normal
  05/06/2026 03 PM PDT           71.77           1008         0              Normal
  05/06/2026 04 PM PDT           71.77           1008         0              Normal
  05/06/2026 05 PM PDT           71.77           1008         0              Normal
  05/06/2026 06 PM PDT           71.77           1008         0              Normal
  05/06/2026 07 PM PDT           71.77           1008         0              Normal
  05/06/2026 08 PM PDT           71.77           1008         0              Normal
  05/06/2026 09 PM PDT           71.77           1008         0              Normal
  05/06/2026 10 PM PDT           71.77           1008         0              Normal
  05/06/2026 11 PM PDT           71.77           1008         0              Normal
  05/07/2026 12 AM PDT           71.77           1008         0              Normal
  05/07/2026 01 AM PDT           71.77           1008         0              Normal
  05/07/2026 02 AM PDT           71.77           1008         0              Normal
  05/07/2026 03 AM PDT           71.77           1008         0              Normal
  05/07/2026 04 AM PDT           71.77           1008         0              Normal
  05/07/2026 05 AM PDT           71.77           1008         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.