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 29 2026 at 7:47 AM PDTNext Issuance: Oct 30 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:  10/29/2026 at 07:47 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  10/24/2026 at 10:00 AM PDT
# Maximum Observed Stage:                       72.43 Feet
# Maximum Observed Flow:                        1647 cfs
#
# Earliest Date & Time of Maximum Forecast:     11/01/2026 at 11:00 PM PST
# Maximum Forecast Stage:                       71.74 Feet
# Maximum Forecast Flow:                        982 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  10/24/2026 07 AM PDT           72.41           1625                        Normal
  10/24/2026 08 AM PDT           72.41           1625         0              Normal
  10/24/2026 09 AM PDT           72.43           1647         +              Normal
  10/24/2026 10 AM PDT           72.43           1647         0              Normal
  10/24/2026 11 AM PDT           72.41           1625         -              Normal
  10/24/2026 12 PM PDT           72.42           1636         +              Normal
  10/24/2026 01 PM PDT           72.42           1636         0              Normal
  10/24/2026 02 PM PDT           72.41           1625         -              Normal
  10/24/2026 03 PM PDT           72.34           1551         -              Normal
  10/24/2026 04 PM PDT           72.28           1489         -              Normal
  10/24/2026 05 PM PDT           72.26           1468         -              Normal
  10/24/2026 06 PM PDT           72.24           1448         -              Normal
  10/24/2026 07 PM PDT           72.24           1448         0              Normal
  10/24/2026 08 PM PDT           72.24           1448         0              Normal
  10/24/2026 09 PM PDT           72.23           1438         -              Normal
  10/24/2026 10 PM PDT           72.22           1428         -              Normal
  10/24/2026 11 PM PDT           72.23           1438         +              Normal
  10/25/2026 12 AM PDT           72.22           1428         -              Normal
  10/25/2026 01 AM PDT           72.22           1428         0              Normal
  10/25/2026 02 AM PDT           72.23           1438         +              Normal
  10/25/2026 03 AM PDT           72.22           1428         -              Normal
  10/25/2026 04 AM PDT           72.23           1438         +              Normal
  10/25/2026 05 AM PDT           72.22           1428         -              Normal
  10/25/2026 06 AM PDT           72.22           1428         0              Normal
  10/25/2026 07 AM PDT           72.23           1438         +              Normal
  10/25/2026 08 AM PDT           72.22           1428         -              Normal
  10/25/2026 09 AM PDT           72.23           1438         +              Normal
  10/25/2026 10 AM PDT           72.22           1428         -              Normal
  10/25/2026 11 AM PDT           72.22           1428         0              Normal
  10/25/2026 12 PM PDT           72.23           1438         +              Normal
  10/25/2026 01 PM PDT           72.22           1428         -              Normal
  10/25/2026 02 PM PDT           72.22           1428         0              Normal
  10/25/2026 03 PM PDT           72.17           1378         -              Normal
  10/25/2026 04 PM PDT           72.12           1329         -              Normal
  10/25/2026 05 PM PDT           72.08           1290         -              Normal
  10/25/2026 06 PM PDT           72.07           1281         -              Normal
  10/25/2026 07 PM PDT           72.06           1271         -              Normal
  10/25/2026 08 PM PDT           72.06           1271         0              Normal
  10/25/2026 09 PM PDT           72.06           1271         0              Normal
  10/25/2026 10 PM PDT           72.05           1262         -              Normal
  10/25/2026 11 PM PDT           72.05           1262         0              Normal
  10/26/2026 12 AM PDT           72.05           1262         0              Normal
  10/26/2026 01 AM PDT           72.05           1262         0              Normal
  10/26/2026 02 AM PDT           72.05           1262         0              Normal
  10/26/2026 03 AM PDT           72.05           1262         0              Normal
  10/26/2026 04 AM PDT           72.05           1262         0              Normal
  10/26/2026 05 AM PDT           72.04           1252         -              Normal
  10/26/2026 06 AM PDT           72.05           1262         +              Normal
  10/26/2026 07 AM PDT           72.04           1252         -              Normal
  10/26/2026 08 AM PDT           72.05           1262         +              Normal
  10/26/2026 09 AM PDT           72.04           1252         -              Normal
  10/26/2026 10 AM PDT           72.05           1262         +              Normal
  10/26/2026 11 AM PDT           72.05           1262         0              Normal
  10/26/2026 12 PM PDT           72.05           1262         0              Normal
  10/26/2026 01 PM PDT           72.04           1252         -              Normal
  10/26/2026 02 PM PDT           72.04           1252         0              Normal
  10/26/2026 03 PM PDT           71.99           1205         -              Normal
  10/26/2026 04 PM PDT           71.92           1141         -              Normal
  10/26/2026 05 PM PDT           71.88           1105         -              Normal
  10/26/2026 06 PM PDT           71.85           1078         -              Normal
  10/26/2026 07 PM PDT           71.84           1069         -              Normal
  10/26/2026 08 PM PDT           71.82           1051         -              Normal
  10/26/2026 09 PM PDT           71.82           1051         0              Normal
  10/26/2026 10 PM PDT           71.81           1043         -              Normal
  10/26/2026 11 PM PDT           71.81           1043         0              Normal
  10/27/2026 12 AM PDT           71.81           1043         0              Normal
  10/27/2026 01 AM PDT           71.81           1043         0              Normal
  10/27/2026 02 AM PDT           71.80           1034         -              Normal
  10/27/2026 03 AM PDT           71.81           1043         +              Normal
  10/27/2026 04 AM PDT           71.81           1043         0              Normal
  10/27/2026 05 AM PDT           71.81           1043         0              Normal
  10/27/2026 06 AM PDT           71.80           1034         -              Normal
  10/27/2026 07 AM PDT           71.81           1043         +              Normal
  10/27/2026 08 AM PDT           71.80           1034         -              Normal
  10/27/2026 09 AM PDT           71.81           1043         +              Normal
  10/27/2026 10 AM PDT           71.80           1034         -              Normal
  10/27/2026 11 AM PDT           71.81           1043         +              Normal
  10/27/2026 12 PM PDT           71.81           1043         0              Normal
  10/27/2026 01 PM PDT           71.81           1043         0              Normal
  10/27/2026 02 PM PDT           71.81           1043         0              Normal
  10/27/2026 03 PM PDT           71.79           1025         -              Normal
  10/27/2026 04 PM PDT           71.77           1008         -              Normal
  10/27/2026 05 PM PDT           71.75            991         -              Normal
  10/27/2026 06 PM PDT           71.74            982         -              Normal
  10/27/2026 07 PM PDT           71.74            982         0              Normal
  10/27/2026 08 PM PDT           71.73            974         -              Normal
  10/27/2026 09 PM PDT           71.73            974         0              Normal
  10/27/2026 10 PM PDT           71.72            965         -              Normal
  10/27/2026 11 PM PDT           71.72            965         0              Normal
  10/28/2026 12 AM PDT           71.72            965         0              Normal
  10/28/2026 01 AM PDT           71.73            974         +              Normal
  10/28/2026 02 AM PDT           71.73            974         0              Normal
  10/28/2026 03 AM PDT           71.72            965         -              Normal
  10/28/2026 04 AM PDT           71.71            957         -              Normal
  10/28/2026 05 AM PDT           71.71            957         0              Normal
  10/28/2026 06 AM PDT           71.71            957         0              Normal
  10/28/2026 07 AM PDT           71.72            965         +              Normal
  10/28/2026 08 AM PDT           71.72            965         0              Normal
  10/28/2026 09 AM PDT           71.72            965         0              Normal
  10/28/2026 10 AM PDT           71.72            965         0              Normal
  10/28/2026 11 AM PDT           71.72            965         0              Normal
  10/28/2026 12 PM PDT           71.72            965         0              Normal
  10/28/2026 01 PM PDT           71.72            965         0              Normal
  10/28/2026 02 PM PDT           71.72            965         0              Normal
  10/28/2026 03 PM PDT           71.73            974         +              Normal
  10/28/2026 04 PM PDT           71.72            965         -              Normal
  10/28/2026 05 PM PDT           71.72            965         0              Normal
  10/28/2026 06 PM PDT           71.73            974         +              Normal
  10/28/2026 07 PM PDT           71.72            965         -              Normal
  10/28/2026 08 PM PDT           71.73            974         +              Normal
  10/28/2026 09 PM PDT           71.72            965         -              Normal
  10/28/2026 10 PM PDT           71.71            957         -              Normal
  10/28/2026 11 PM PDT           71.72            965         +              Normal
  10/29/2026 12 AM PDT           71.72            965         0              Normal
  10/29/2026 01 AM PDT           71.72            965         0              Normal
  10/29/2026 02 AM PDT           71.71            957         -              Normal
  10/29/2026 03 AM PDT           71.72            965         +              Normal
  10/29/2026 04 AM PDT           71.71            957         -              Normal
  10/29/2026 05 AM PDT           71.72            965         +              Normal
  10/29/2026 06 AM PDT           71.72            965         0              Normal
  10/29/2026 07 AM PDT           71.72            965         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  10/29/2026 08 AM PDT           71.72            965                        Normal
  10/29/2026 09 AM PDT           71.72            965         0              Normal
  10/29/2026 10 AM PDT           71.72            965         0              Normal
  10/29/2026 11 AM PDT           71.72            965         0              Normal
  10/29/2026 12 PM PDT           71.72            965         0              Normal
  10/29/2026 01 PM PDT           71.72            965         0              Normal
  10/29/2026 02 PM PDT           71.72            965         0              Normal
  10/29/2026 03 PM PDT           71.72            965         0              Normal
  10/29/2026 04 PM PDT           71.72            965         0              Normal
  10/29/2026 05 PM PDT           71.72            965         0              Normal
  10/29/2026 06 PM PDT           71.72            965         0              Normal
  10/29/2026 07 PM PDT           71.72            965         0              Normal
  10/29/2026 08 PM PDT           71.72            965         0              Normal
  10/29/2026 09 PM PDT           71.72            965         0              Normal
  10/29/2026 10 PM PDT           71.72            965         0              Normal
  10/29/2026 11 PM PDT           71.72            965         0              Normal
  10/30/2026 12 AM PDT           71.72            965         0              Normal
  10/30/2026 01 AM PDT           71.72            965         0              Normal
  10/30/2026 02 AM PDT           71.72            965         0              Normal
  10/30/2026 03 AM PDT           71.72            965         0              Normal
  10/30/2026 04 AM PDT           71.72            965         0              Normal
  10/30/2026 05 AM PDT           71.72            965         0              Normal
  10/30/2026 06 AM PDT           71.72            965         0              Normal
  10/30/2026 07 AM PDT           71.72            965         0              Normal
  10/30/2026 08 AM PDT           71.72            965         0              Normal
  10/30/2026 09 AM PDT           71.72            965         0              Normal
  10/30/2026 10 AM PDT           71.72            965         0              Normal
  10/30/2026 11 AM PDT           71.72            965         0              Normal
  10/30/2026 12 PM PDT           71.72            965         0              Normal
  10/30/2026 01 PM PDT           71.72            965         0              Normal
  10/30/2026 02 PM PDT           71.73            974         +              Normal
  10/30/2026 03 PM PDT           71.73            974         0              Normal
  10/30/2026 04 PM PDT           71.73            974         0              Normal
  10/30/2026 05 PM PDT           71.73            974         0              Normal
  10/30/2026 06 PM PDT           71.73            974         0              Normal
  10/30/2026 07 PM PDT           71.73            974         0              Normal
  10/30/2026 08 PM PDT           71.73            974         0              Normal
  10/30/2026 09 PM PDT           71.73            974         0              Normal
  10/30/2026 10 PM PDT           71.73            974         0              Normal
  10/30/2026 11 PM PDT           71.73            974         0              Normal
  10/31/2026 12 AM PDT           71.73            974         0              Normal
  10/31/2026 01 AM PDT           71.73            974         0              Normal
  10/31/2026 02 AM PDT           71.73            974         0              Normal
  10/31/2026 03 AM PDT           71.73            974         0              Normal
  10/31/2026 04 AM PDT           71.73            974         0              Normal
  10/31/2026 05 AM PDT           71.73            974         0              Normal
  10/31/2026 06 AM PDT           71.73            974         0              Normal
  10/31/2026 07 AM PDT           71.73            974         0              Normal
  10/31/2026 08 AM PDT           71.73            974         0              Normal
  10/31/2026 09 AM PDT           71.73            974         0              Normal
  10/31/2026 10 AM PDT           71.73            974         0              Normal
  10/31/2026 11 AM PDT           71.73            974         0              Normal
  10/31/2026 12 PM PDT           71.73            974         0              Normal
  10/31/2026 01 PM PDT           71.73            974         0              Normal
  10/31/2026 02 PM PDT           71.73            974         0              Normal
  10/31/2026 03 PM PDT           71.73            974         0              Normal
  10/31/2026 04 PM PDT           71.73            974         0              Normal
  10/31/2026 05 PM PDT           71.73            974         0              Normal
  10/31/2026 06 PM PDT           71.73            974         0              Normal
  10/31/2026 07 PM PDT           71.73            974         0              Normal
  10/31/2026 08 PM PDT           71.73            974         0              Normal
  10/31/2026 09 PM PDT           71.73            974         0              Normal
  10/31/2026 10 PM PDT           71.73            974         0              Normal
  10/31/2026 11 PM PDT           71.73            974         0              Normal
  11/01/2026 12 AM PDT           71.73            974         0              Normal
  11/01/2026 01 AM PDT           71.73            974         0              Normal
  11/01/2026 01 AM PST           71.73            974         0              Normal
  11/01/2026 02 AM PST           71.73            974         0              Normal
  11/01/2026 03 AM PST           71.73            974         0              Normal
  11/01/2026 04 AM PST           71.73            974         0              Normal
  11/01/2026 05 AM PST           71.73            974         0              Normal
  11/01/2026 06 AM PST           71.73            974         0              Normal
  11/01/2026 07 AM PST           71.73            974         0              Normal
  11/01/2026 08 AM PST           71.73            974         0              Normal
  11/01/2026 09 AM PST           71.73            974         0              Normal
  11/01/2026 10 AM PST           71.73            974         0              Normal
  11/01/2026 11 AM PST           71.73            974         0              Normal
  11/01/2026 12 PM PST           71.73            974         0              Normal
  11/01/2026 01 PM PST           71.73            974         0              Normal
  11/01/2026 02 PM PST           71.73            974         0              Normal
  11/01/2026 03 PM PST           71.73            974         0              Normal
  11/01/2026 04 PM PST           71.73            974         0              Normal
  11/01/2026 05 PM PST           71.73            974         0              Normal
  11/01/2026 06 PM PST           71.73            974         0              Normal
  11/01/2026 07 PM PST           71.73            974         0              Normal
  11/01/2026 08 PM PST           71.73            974         0              Normal
  11/01/2026 09 PM PST           71.73            974         0              Normal
  11/01/2026 10 PM PST           71.73            974         0              Normal
  11/01/2026 11 PM PST           71.74            982         +              Normal
  11/02/2026 12 AM PST           71.74            982         0              Normal
  11/02/2026 01 AM PST           71.74            982         0              Normal
  11/02/2026 02 AM PST           71.74            982         0              Normal
  11/02/2026 03 AM PST           71.74            982         0              Normal
  11/02/2026 04 AM PST           71.74            982         0              Normal
  11/02/2026 05 AM PST           71.74            982         0              Normal
  11/02/2026 06 AM PST           71.74            982         0              Normal
  11/02/2026 07 AM PST           71.74            982         0              Normal
  11/02/2026 08 AM PST           71.74            982         0              Normal
  11/02/2026 09 AM PST           71.74            982         0              Normal
  11/02/2026 10 AM PST           71.74            982         0              Normal
  11/02/2026 11 AM PST           71.74            982         0              Normal
  11/02/2026 12 PM PST           71.74            982         0              Normal
  11/02/2026 01 PM PST           71.74            982         0              Normal
  11/02/2026 02 PM PST           71.74            982         0              Normal
  11/02/2026 03 PM PST           71.74            982         0              Normal
  11/02/2026 04 PM PST           71.74            982         0              Normal
  11/02/2026 05 PM PST           71.74            982         0              Normal
  11/02/2026 06 PM PST           71.74            982         0              Normal
  11/02/2026 07 PM PST           71.74            982         0              Normal
  11/02/2026 08 PM PST           71.74            982         0              Normal
  11/02/2026 09 PM PST           71.74            982         0              Normal
  11/02/2026 10 PM PST           71.74            982         0              Normal
  11/02/2026 11 PM PST           71.74            982         0              Normal
  11/03/2026 12 AM PST           71.74            982         0              Normal
  11/03/2026 01 AM PST           71.74            982         0              Normal
  11/03/2026 02 AM PST           71.74            982         0              Normal
  11/03/2026 03 AM PST           71.74            982         0              Normal
  11/03/2026 04 AM PST           71.74            982         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.