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SACRAMENTO RIVER - HAMILTON CITY (HAMC1)
| Latitude: 39.75º N | Longitude: 122.00º W | Elevation: 125 Feet | | | |
| Location: Glenn County in California | Bulletin Group: Upper Sacramento | River Group: Upper Sacramento |
| Issuance Time: | Dec 13 2025 at 6:55 AM PST | Next Issuance: | Dec 14 2025 at 9:00 AM PST
| |
| Action/Monitor: 142.0 Feet | Minor Flood: 147.0 Feet | Moderate Flood: 149.2 Feet | Major Flood: 150.2 Feet |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Sacramento River - Hamilton City (HAMC1)
#
# File Generation Time: 12/13/2025 at 06:55 AM PST
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 12/09/2025 at 02:00 AM PST
# Maximum Observed Stage: 127.60 Feet
# Maximum Observed Flow: 4531 cfs
#
# Earliest Date & Time of Maximum Forecast: 12/18/2025 at 03:00 AM PST
# Maximum Forecast Stage: 128.56 Feet
# Maximum Forecast Flow: 6882 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
12/08/2025 06 AM PST 127.60 4531 Normal
12/08/2025 07 AM PST 127.59 4509 - Normal
12/08/2025 08 AM PST 127.59 4509 0 Normal
12/08/2025 09 AM PST 127.59 4509 0 Normal
12/08/2025 10 AM PST 127.59 4509 0 Normal
12/08/2025 11 AM PST 127.59 4509 0 Normal
12/08/2025 12 PM PST 127.59 4509 0 Normal
12/08/2025 01 PM PST 127.59 4509 0 Normal
12/08/2025 02 PM PST 127.59 4509 0 Normal
12/08/2025 03 PM PST 127.58 4486 - Normal
12/08/2025 04 PM PST 127.59 4509 + Normal
12/08/2025 05 PM PST 127.59 4509 0 Normal
12/08/2025 06 PM PST 127.59 4509 0 Normal
12/08/2025 07 PM PST 127.59 4509 0 Normal
12/08/2025 08 PM PST 127.59 4509 0 Normal
12/08/2025 09 PM PST 127.59 4509 0 Normal
12/08/2025 10 PM PST 127.59 4509 0 Normal
12/08/2025 11 PM PST 127.59 4509 0 Normal
12/09/2025 12 AM PST 127.59 4509 0 Normal
12/09/2025 01 AM PST 127.59 4509 0 Normal
12/09/2025 02 AM PST 127.60 4531 + Normal
12/09/2025 03 AM PST 127.59 4509 - Normal
12/09/2025 04 AM PST 127.59 4509 0 Normal
12/09/2025 05 AM PST 127.59 4509 0 Normal
12/09/2025 06 AM PST 127.59 4509 0 Normal
12/09/2025 07 AM PST 127.58 4486 - Normal
12/09/2025 08 AM PST 127.58 4486 0 Normal
12/09/2025 09 AM PST 127.58 4486 0 Normal
12/09/2025 10 AM PST 127.58 4486 0 Normal
12/09/2025 11 AM PST 127.58 4486 0 Normal
12/09/2025 12 PM PST 127.58 4486 0 Normal
12/09/2025 01 PM PST 127.59 4509 + Normal
12/09/2025 02 PM PST 127.59 4509 0 Normal
12/09/2025 03 PM PST 127.58 4486 - Normal
12/09/2025 04 PM PST 127.58 4486 0 Normal
12/09/2025 05 PM PST 127.58 4486 0 Normal
12/09/2025 06 PM PST 127.58 4486 0 Normal
12/09/2025 07 PM PST 127.58 4486 0 Normal
12/09/2025 08 PM PST 127.58 4486 0 Normal
12/09/2025 09 PM PST 127.58 4486 0 Normal
12/09/2025 10 PM PST 127.59 4509 + Normal
12/09/2025 11 PM PST 127.59 4509 0 Normal
12/10/2025 12 AM PST 127.58 4486 - Normal
12/10/2025 01 AM PST 127.59 4509 + Normal
12/10/2025 02 AM PST 127.58 4486 - Normal
12/10/2025 03 AM PST 127.58 4486 0 Normal
12/10/2025 04 AM PST 127.58 4486 0 Normal
12/10/2025 05 AM PST 127.58 4486 0 Normal
12/10/2025 06 AM PST 127.58 4486 0 Normal
12/10/2025 07 AM PST 127.57 4464 - Normal
12/10/2025 08 AM PST 127.57 4464 0 Normal
12/10/2025 09 AM PST 127.57 4464 0 Normal
12/10/2025 10 AM PST 127.57 4464 0 Normal
12/10/2025 11 AM PST 127.57 4464 0 Normal
12/10/2025 12 PM PST 127.57 4464 0 Normal
12/10/2025 01 PM PST 127.57 4464 0 Normal
12/10/2025 02 PM PST 127.57 4464 0 Normal
12/10/2025 03 PM PST 127.57 4464 0 Normal
12/10/2025 04 PM PST 127.57 4464 0 Normal
12/10/2025 05 PM PST 127.57 4464 0 Normal
12/10/2025 06 PM PST 127.57 4464 0 Normal
12/10/2025 07 PM PST 127.58 4486 + Normal
12/10/2025 08 PM PST 127.57 4464 - Normal
12/10/2025 09 PM PST 127.57 4464 0 Normal
12/10/2025 10 PM PST 127.58 4486 + Normal
12/10/2025 11 PM PST 127.57 4464 - Normal
12/11/2025 12 AM PST 127.57 4464 0 Normal
12/11/2025 01 AM PST 127.57 4464 0 Normal
12/11/2025 02 AM PST 127.57 4464 0 Normal
12/11/2025 03 AM PST 127.57 4464 0 Normal
12/11/2025 04 AM PST 127.57 4464 0 Normal
12/11/2025 05 AM PST 127.56 4442 - Normal
12/11/2025 06 AM PST 127.57 4464 + Normal
12/11/2025 07 AM PST 127.57 4464 0 Normal
12/11/2025 08 AM PST 127.57 4464 0 Normal
12/11/2025 09 AM PST 127.57 4464 0 Normal
12/11/2025 10 AM PST 127.57 4464 0 Normal
12/11/2025 11 AM PST 127.57 4464 0 Normal
12/11/2025 12 PM PST 127.57 4464 0 Normal
12/11/2025 01 PM PST 127.57 4464 0 Normal
12/11/2025 02 PM PST 127.57 4464 0 Normal
12/11/2025 03 PM PST 127.57 4464 0 Normal
12/11/2025 04 PM PST 127.57 4464 0 Normal
12/11/2025 05 PM PST 127.57 4464 0 Normal
12/11/2025 06 PM PST 127.57 4464 0 Normal
12/11/2025 07 PM PST 127.57 4464 0 Normal
12/11/2025 08 PM PST 127.57 4464 0 Normal
12/11/2025 09 PM PST 127.57 4464 0 Normal
12/11/2025 10 PM PST 127.57 4464 0 Normal
12/11/2025 11 PM PST 127.57 4464 0 Normal
12/12/2025 12 AM PST 127.56 4442 - Normal
12/12/2025 01 AM PST 127.56 4442 0 Normal
12/12/2025 02 AM PST 127.56 4442 0 Normal
12/12/2025 03 AM PST 127.56 4442 0 Normal
12/12/2025 04 AM PST 127.56 4442 0 Normal
12/12/2025 05 AM PST 127.56 4442 0 Normal
12/12/2025 06 AM PST 127.56 4442 0 Normal
12/12/2025 07 AM PST 127.56 4442 0 Normal
12/12/2025 08 AM PST 127.56 4442 0 Normal
12/12/2025 09 AM PST 127.56 4442 0 Normal
12/12/2025 10 AM PST 127.56 4442 0 Normal
12/12/2025 11 AM PST 127.56 4442 0 Normal
12/12/2025 12 PM PST 127.56 4442 0 Normal
12/12/2025 01 PM PST 127.54 4398 - Normal
12/12/2025 02 PM PST 127.55 4420 + Normal
12/12/2025 03 PM PST 127.55 4420 0 Normal
12/12/2025 04 PM PST 127.56 4442 + Normal
12/12/2025 05 PM PST 127.56 4442 0 Normal
12/12/2025 06 PM PST 127.56 4442 0 Normal
12/12/2025 07 PM PST 127.56 4442 0 Normal
12/12/2025 08 PM PST 127.56 4442 0 Normal
12/12/2025 09 PM PST 127.55 4420 - Normal
12/12/2025 10 PM PST 127.55 4420 0 Normal
12/12/2025 11 PM PST 127.55 4420 0 Normal
12/13/2025 12 AM PST 127.55 4420 0 Normal
12/13/2025 01 AM PST 127.55 4420 0 Normal
12/13/2025 02 AM PST 127.55 4420 0 Normal
12/13/2025 03 AM PST 127.55 4420 0 Normal
12/13/2025 04 AM PST 127.55 4420 0 Normal
12/13/2025 05 AM PST 127.55 4420 0 Normal
12/13/2025 06 AM PST 127.55 4420 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
12/13/2025 07 AM PST 127.54 4398 Normal
12/13/2025 08 AM PST 127.54 4398 0 Normal
12/13/2025 09 AM PST 127.55 4420 + Normal
12/13/2025 10 AM PST 127.55 4420 0 Normal
12/13/2025 11 AM PST 127.55 4420 0 Normal
12/13/2025 12 PM PST 127.55 4420 0 Normal
12/13/2025 01 PM PST 127.55 4420 0 Normal
12/13/2025 02 PM PST 127.55 4420 0 Normal
12/13/2025 03 PM PST 127.55 4420 0 Normal
12/13/2025 04 PM PST 127.55 4420 0 Normal
12/13/2025 05 PM PST 127.54 4398 - Normal
12/13/2025 06 PM PST 127.54 4398 0 Normal
12/13/2025 07 PM PST 127.54 4398 0 Normal
12/13/2025 08 PM PST 127.54 4398 0 Normal
12/13/2025 09 PM PST 127.54 4398 0 Normal
12/13/2025 10 PM PST 127.54 4398 0 Normal
12/13/2025 11 PM PST 127.54 4398 0 Normal
12/14/2025 12 AM PST 127.54 4398 0 Normal
12/14/2025 01 AM PST 127.54 4398 0 Normal
12/14/2025 02 AM PST 127.54 4398 0 Normal
12/14/2025 03 AM PST 127.54 4398 0 Normal
12/14/2025 04 AM PST 127.54 4398 0 Normal
12/14/2025 05 AM PST 127.54 4398 0 Normal
12/14/2025 06 AM PST 127.54 4398 0 Normal
12/14/2025 07 AM PST 127.54 4398 0 Normal
12/14/2025 08 AM PST 127.54 4398 0 Normal
12/14/2025 09 AM PST 127.54 4398 0 Normal
12/14/2025 10 AM PST 127.54 4398 0 Normal
12/14/2025 11 AM PST 127.54 4398 0 Normal
12/14/2025 12 PM PST 127.54 4398 0 Normal
12/14/2025 01 PM PST 127.54 4398 0 Normal
12/14/2025 02 PM PST 127.54 4398 0 Normal
12/14/2025 03 PM PST 127.54 4398 0 Normal
12/14/2025 04 PM PST 127.53 4376 - Normal
12/14/2025 05 PM PST 127.53 4376 0 Normal
12/14/2025 06 PM PST 127.53 4376 0 Normal
12/14/2025 07 PM PST 127.53 4376 0 Normal
12/14/2025 08 PM PST 127.53 4376 0 Normal
12/14/2025 09 PM PST 127.53 4376 0 Normal
12/14/2025 10 PM PST 127.53 4376 0 Normal
12/14/2025 11 PM PST 127.53 4376 0 Normal
12/15/2025 12 AM PST 127.53 4376 0 Normal
12/15/2025 01 AM PST 127.53 4376 0 Normal
12/15/2025 02 AM PST 127.53 4376 0 Normal
12/15/2025 03 AM PST 127.53 4376 0 Normal
12/15/2025 04 AM PST 127.53 4376 0 Normal
12/15/2025 05 AM PST 127.53 4376 0 Normal
12/15/2025 06 AM PST 127.53 4376 0 Normal
12/15/2025 07 AM PST 127.53 4376 0 Normal
12/15/2025 08 AM PST 127.53 4376 0 Normal
12/15/2025 09 AM PST 127.53 4376 0 Normal
12/15/2025 10 AM PST 127.53 4376 0 Normal
12/15/2025 11 AM PST 127.53 4376 0 Normal
12/15/2025 12 PM PST 127.53 4376 0 Normal
12/15/2025 01 PM PST 127.53 4376 0 Normal
12/15/2025 02 PM PST 127.53 4376 0 Normal
12/15/2025 03 PM PST 127.53 4376 0 Normal
12/15/2025 04 PM PST 127.53 4376 0 Normal
12/15/2025 05 PM PST 127.53 4376 0 Normal
12/15/2025 06 PM PST 127.53 4376 0 Normal
12/15/2025 07 PM PST 127.53 4376 0 Normal
12/15/2025 08 PM PST 127.53 4376 0 Normal
12/15/2025 09 PM PST 127.53 4376 0 Normal
12/15/2025 10 PM PST 127.53 4376 0 Normal
12/15/2025 11 PM PST 127.53 4376 0 Normal
12/16/2025 12 AM PST 127.53 4376 0 Normal
12/16/2025 01 AM PST 127.53 4376 0 Normal
12/16/2025 02 AM PST 127.53 4376 0 Normal
12/16/2025 03 AM PST 127.53 4376 0 Normal
12/16/2025 04 AM PST 127.53 4376 0 Normal
12/16/2025 05 AM PST 127.53 4376 0 Normal
12/16/2025 06 AM PST 127.53 4376 0 Normal
12/16/2025 07 AM PST 127.53 4376 0 Normal
12/16/2025 08 AM PST 127.53 4376 0 Normal
12/16/2025 09 AM PST 127.53 4376 0 Normal
12/16/2025 10 AM PST 127.53 4376 0 Normal
12/16/2025 11 AM PST 127.53 4376 0 Normal
12/16/2025 12 PM PST 127.53 4376 0 Normal
12/16/2025 01 PM PST 127.53 4376 0 Normal
12/16/2025 02 PM PST 127.53 4376 0 Normal
12/16/2025 03 PM PST 127.53 4376 0 Normal
12/16/2025 04 PM PST 127.54 4398 + Normal
12/16/2025 05 PM PST 127.55 4420 + Normal
12/16/2025 06 PM PST 127.56 4442 + Normal
12/16/2025 07 PM PST 127.56 4442 0 Normal
12/16/2025 08 PM PST 127.58 4486 + Normal
12/16/2025 09 PM PST 127.59 4509 + Normal
12/16/2025 10 PM PST 127.61 4553 + Normal
12/16/2025 11 PM PST 127.63 4596 + Normal
12/17/2025 12 AM PST 127.66 4662 + Normal
12/17/2025 01 AM PST 127.69 4729 + Normal
12/17/2025 02 AM PST 127.72 4795 + Normal
12/17/2025 03 AM PST 127.75 4861 + Normal
12/17/2025 04 AM PST 127.78 4928 + Normal
12/17/2025 05 AM PST 127.82 5017 + Normal
12/17/2025 06 AM PST 127.85 5083 + Normal
12/17/2025 07 AM PST 127.89 5173 + Normal
12/17/2025 08 AM PST 127.92 5240 + Normal
12/17/2025 09 AM PST 127.95 5307 + Normal
12/17/2025 10 AM PST 127.98 5374 + Normal
12/17/2025 11 AM PST 128.01 5445 + Normal
12/17/2025 12 PM PST 128.03 5496 + Normal
12/17/2025 01 PM PST 128.05 5548 + Normal
12/17/2025 02 PM PST 128.07 5600 + Normal
12/17/2025 03 PM PST 128.10 5679 + Normal
12/17/2025 04 PM PST 128.12 5730 + Normal
12/17/2025 05 PM PST 128.15 5808 + Normal
12/17/2025 06 PM PST 128.18 5886 + Normal
12/17/2025 07 PM PST 128.22 5990 + Normal
12/17/2025 08 PM PST 128.26 6094 + Normal
12/17/2025 09 PM PST 128.31 6226 + Normal
12/17/2025 10 PM PST 128.38 6409 + Normal
12/17/2025 11 PM PST 128.44 6566 + Normal
12/18/2025 12 AM PST 128.49 6698 + Normal
12/18/2025 01 AM PST 128.53 6803 + Normal
12/18/2025 02 AM PST 128.55 6856 + Normal
12/18/2025 03 AM PST 128.56 6882 + Normal
12/18/2025 04 AM PST 128.55 6856 - 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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