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FEATHER RIVER - GRIDLEY (GRIC1)
| Latitude: 39.37º N | Longitude: 121.65º W | Elevation: 92 Feet | | Forecast Type: Official Location |
| Location: Butte County in California | Bulletin Group: Lower Sacramento | River Group: Feather Yuba |
| Issuance Time: | Sep 18 2026 at 8:11 AM PDT | Next Issuance: | Sep 19 2026 at 9:00 AM PDT
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| Action: 94.0 Feet | Minor Flood: 103.0 Feet | Moderate Flood: 105.6 Feet | Major Flood: 106.6 Feet |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Feather River - Gridley (GRIC1)
#
# File Generation Time: 09/18/2026 at 08:10 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 09/17/2026 at 03:00 AM PDT
# Maximum Observed Stage: 75.86 Feet
# Maximum Observed Flow: 7091 cfs
#
# Earliest Date & Time of Maximum Forecast: 09/18/2026 at 06:00 PM PDT
# Maximum Forecast Stage: 76.05 Feet
# Maximum Forecast Flow: 7491 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
09/13/2026 08 AM PDT 75.56 6480 Normal
09/13/2026 09 AM PDT 75.55 6460 - Normal
09/13/2026 10 AM PDT 75.54 6440 - Normal
09/13/2026 11 AM PDT 75.52 6401 - Normal
09/13/2026 12 PM PDT 75.48 6321 - Normal
09/13/2026 01 PM PDT 75.53 6420 + Normal
09/13/2026 02 PM PDT 75.53 6420 0 Normal
09/13/2026 03 PM PDT 75.54 6440 + Normal
09/13/2026 04 PM PDT 75.53 6420 - Normal
09/13/2026 05 PM PDT 75.52 6401 - Normal
09/13/2026 06 PM PDT 75.53 6420 + Normal
09/13/2026 07 PM PDT 75.53 6420 0 Normal
09/13/2026 08 PM PDT 75.54 6440 + Normal
09/13/2026 09 PM PDT 75.51 6381 - Normal
09/13/2026 10 PM PDT 75.52 6401 + Normal
09/13/2026 11 PM PDT 75.52 6401 0 Normal
09/14/2026 12 AM PDT 75.51 6381 - Normal
09/14/2026 01 AM PDT 75.51 6381 0 Normal
09/14/2026 02 AM PDT 75.52 6401 + Normal
09/14/2026 03 AM PDT 75.51 6381 - Normal
09/14/2026 04 AM PDT 75.51 6381 0 Normal
09/14/2026 05 AM PDT 75.52 6401 + Normal
09/14/2026 06 AM PDT 75.50 6361 - Normal
09/14/2026 07 AM PDT 75.51 6381 + Normal
09/14/2026 08 AM PDT 75.51 6381 0 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 75.81 6988 0 Normal
09/18/2026 07 AM PDT 75.81 6988 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
09/18/2026 08 AM PDT 75.81 6988 Normal
09/18/2026 09 AM PDT 75.81 6988 0 Normal
09/18/2026 10 AM PDT 75.81 6988 0 Normal
09/18/2026 11 AM PDT 75.81 6988 0 Normal
09/18/2026 12 PM PDT 75.81 6988 0 Normal
09/18/2026 01 PM PDT 75.81 6988 0 Normal
09/18/2026 02 PM PDT 75.89 7154 + Normal
09/18/2026 03 PM PDT 76.00 7385 + Normal
09/18/2026 04 PM PDT 76.03 7448 + Normal
09/18/2026 05 PM PDT 76.04 7470 + Normal
09/18/2026 06 PM PDT 76.05 7491 + Normal
09/18/2026 07 PM PDT 76.05 7491 0 Normal
09/18/2026 08 PM PDT 76.05 7491 0 Normal
09/18/2026 09 PM PDT 76.05 7491 0 Normal
09/18/2026 10 PM PDT 76.05 7491 0 Normal
09/18/2026 11 PM PDT 76.05 7491 0 Normal
09/19/2026 12 AM PDT 76.05 7491 0 Normal
09/19/2026 01 AM PDT 76.05 7491 0 Normal
09/19/2026 02 AM PDT 76.05 7491 0 Normal
09/19/2026 03 AM PDT 76.05 7491 0 Normal
09/19/2026 04 AM PDT 76.05 7491 0 Normal
09/19/2026 05 AM PDT 76.05 7491 0 Normal
09/19/2026 06 AM PDT 76.05 7491 0 Normal
09/19/2026 07 AM PDT 76.05 7491 0 Normal
09/19/2026 08 AM PDT 76.05 7491 0 Normal
09/19/2026 09 AM PDT 76.05 7491 0 Normal
09/19/2026 10 AM PDT 76.05 7491 0 Normal
09/19/2026 11 AM PDT 76.05 7491 0 Normal
09/19/2026 12 PM PDT 76.05 7491 0 Normal
09/19/2026 01 PM PDT 76.05 7491 0 Normal
09/19/2026 02 PM PDT 76.05 7491 0 Normal
09/19/2026 03 PM PDT 76.05 7491 0 Normal
09/19/2026 04 PM PDT 76.05 7491 0 Normal
09/19/2026 05 PM PDT 76.05 7491 0 Normal
09/19/2026 06 PM PDT 76.05 7491 0 Normal
09/19/2026 07 PM PDT 76.05 7491 0 Normal
09/19/2026 08 PM PDT 76.05 7491 0 Normal
09/19/2026 09 PM PDT 76.05 7491 0 Normal
09/19/2026 10 PM PDT 76.05 7491 0 Normal
09/19/2026 11 PM PDT 76.05 7491 0 Normal
09/20/2026 12 AM PDT 76.05 7491 0 Normal
09/20/2026 01 AM PDT 76.05 7491 0 Normal
09/20/2026 02 AM PDT 76.05 7491 0 Normal
09/20/2026 03 AM PDT 76.05 7491 0 Normal
09/20/2026 04 AM PDT 76.05 7491 0 Normal
09/20/2026 05 AM PDT 76.05 7491 0 Normal
09/20/2026 06 AM PDT 76.05 7491 0 Normal
09/20/2026 07 AM PDT 76.05 7491 0 Normal
09/20/2026 08 AM PDT 76.05 7491 0 Normal
09/20/2026 09 AM PDT 76.05 7491 0 Normal
09/20/2026 10 AM PDT 76.05 7491 0 Normal
09/20/2026 11 AM PDT 76.05 7491 0 Normal
09/20/2026 12 PM PDT 76.05 7491 0 Normal
09/20/2026 01 PM PDT 76.05 7491 0 Normal
09/20/2026 02 PM PDT 76.05 7491 0 Normal
09/20/2026 03 PM PDT 76.05 7491 0 Normal
09/20/2026 04 PM PDT 76.05 7491 0 Normal
09/20/2026 05 PM PDT 76.05 7491 0 Normal
09/20/2026 06 PM PDT 76.05 7491 0 Normal
09/20/2026 07 PM PDT 76.05 7491 0 Normal
09/20/2026 08 PM PDT 76.05 7491 0 Normal
09/20/2026 09 PM PDT 76.05 7491 0 Normal
09/20/2026 10 PM PDT 76.05 7491 0 Normal
09/20/2026 11 PM PDT 76.05 7491 0 Normal
09/21/2026 12 AM PDT 76.05 7491 0 Normal
09/21/2026 01 AM PDT 76.05 7491 0 Normal
09/21/2026 02 AM PDT 76.05 7491 0 Normal
09/21/2026 03 AM PDT 76.05 7491 0 Normal
09/21/2026 04 AM PDT 76.05 7491 0 Normal
09/21/2026 05 AM PDT 76.05 7491 0 Normal
09/21/2026 06 AM PDT 76.05 7491 0 Normal
09/21/2026 07 AM PDT 76.05 7491 0 Normal
09/21/2026 08 AM PDT 76.05 7491 0 Normal
09/21/2026 09 AM PDT 76.05 7491 0 Normal
09/21/2026 10 AM PDT 76.05 7491 0 Normal
09/21/2026 11 AM PDT 76.05 7491 0 Normal
09/21/2026 12 PM PDT 76.05 7491 0 Normal
09/21/2026 01 PM PDT 76.05 7491 0 Normal
09/21/2026 02 PM PDT 76.05 7491 0 Normal
09/21/2026 03 PM PDT 76.05 7491 0 Normal
09/21/2026 04 PM PDT 76.05 7491 0 Normal
09/21/2026 05 PM PDT 76.05 7491 0 Normal
09/21/2026 06 PM PDT 76.05 7491 0 Normal
09/21/2026 07 PM PDT 76.05 7491 0 Normal
09/21/2026 08 PM PDT 76.05 7491 0 Normal
09/21/2026 09 PM PDT 76.05 7491 0 Normal
09/21/2026 10 PM PDT 76.05 7491 0 Normal
09/21/2026 11 PM PDT 76.05 7491 0 Normal
09/22/2026 12 AM PDT 76.05 7491 0 Normal
09/22/2026 01 AM PDT 76.05 7491 0 Normal
09/22/2026 02 AM PDT 76.05 7491 0 Normal
09/22/2026 03 AM PDT 76.05 7491 0 Normal
09/22/2026 04 AM PDT 76.05 7491 0 Normal
09/22/2026 05 AM PDT 76.05 7491 0 Normal
09/22/2026 06 AM PDT 76.05 7491 0 Normal
09/22/2026 07 AM PDT 76.05 7491 0 Normal
09/22/2026 08 AM PDT 76.05 7491 0 Normal
09/22/2026 09 AM PDT 76.05 7491 0 Normal
09/22/2026 10 AM PDT 76.05 7491 0 Normal
09/22/2026 11 AM PDT 76.05 7491 0 Normal
09/22/2026 12 PM PDT 76.05 7491 0 Normal
09/22/2026 01 PM PDT 76.05 7491 0 Normal
09/22/2026 02 PM PDT 76.05 7491 0 Normal
09/22/2026 03 PM PDT 76.05 7491 0 Normal
09/22/2026 04 PM PDT 76.05 7491 0 Normal
09/22/2026 05 PM PDT 76.05 7491 0 Normal
09/22/2026 06 PM PDT 76.05 7491 0 Normal
09/22/2026 07 PM PDT 76.05 7491 0 Normal
09/22/2026 08 PM PDT 76.05 7491 0 Normal
09/22/2026 09 PM PDT 76.05 7491 0 Normal
09/22/2026 10 PM PDT 76.05 7491 0 Normal
09/22/2026 11 PM PDT 76.05 7491 0 Normal
09/23/2026 12 AM PDT 76.05 7491 0 Normal
09/23/2026 01 AM PDT 76.05 7491 0 Normal
09/23/2026 02 AM PDT 76.05 7491 0 Normal
09/23/2026 03 AM PDT 76.05 7491 0 Normal
09/23/2026 04 AM PDT 76.05 7491 0 Normal
09/23/2026 05 AM PDT 76.05 7491 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.
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