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SACRAMENTO RIVER - HAMILTON CITY (HAMC1)
| Latitude: 39.75º N | Longitude: 122.00º W | Elevation: 125 Feet | | Forecast Type: Official Location |
| Location: Glenn County in California | Bulletin Group: Upper Sacramento | River Group: Upper Sacramento |
| Issuance Time: | Aug 20 2026 at 6:35 AM PDT | Next Issuance: | Aug 21 2026 at 9:00 AM PDT
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| 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: 08/20/2026 at 06:35 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 08/15/2026 at 05:00 PM PDT
# Maximum Observed Stage: 129.32 Feet
# Maximum Observed Flow: 8665 cfs
#
# Earliest Date & Time of Maximum Forecast: 08/20/2026 at 10:00 AM PDT
# Maximum Forecast Stage: 128.89 Feet
# Maximum Forecast Flow: 7593 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
08/15/2026 06 AM PDT 129.30 8615 Normal
08/15/2026 07 AM PDT 129.31 8640 + Normal
08/15/2026 08 AM PDT 129.31 8640 0 Normal
08/15/2026 09 AM PDT 129.32 8665 + Normal
08/15/2026 10 AM PDT 129.32 8665 0 Normal
08/15/2026 11 AM PDT 129.32 8665 0 Normal
08/15/2026 12 PM PDT 129.32 8665 0 Normal
08/15/2026 01 PM PDT 129.32 8665 0 Normal
08/15/2026 02 PM PDT 129.30 8615 - Normal
08/15/2026 03 PM PDT 129.32 8665 + Normal
08/15/2026 04 PM PDT 129.31 8640 - Normal
08/15/2026 05 PM PDT 129.32 8665 + Normal
08/15/2026 06 PM PDT 129.31 8640 - Normal
08/15/2026 07 PM PDT 129.30 8615 - Normal
08/15/2026 08 PM PDT 129.29 8590 - Normal
08/15/2026 09 PM PDT 129.28 8564 - Normal
08/15/2026 10 PM PDT 129.27 8539 - Normal
08/15/2026 11 PM PDT 129.25 8489 - Normal
08/16/2026 12 AM PDT 129.24 8464 - Normal
08/16/2026 01 AM PDT 129.23 8439 - Normal
08/16/2026 02 AM PDT 129.21 8390 - Normal
08/16/2026 03 AM PDT 129.20 8365 - Normal
08/16/2026 04 AM PDT 129.19 8340 - Normal
08/16/2026 05 AM PDT 129.19 8340 0 Normal
08/16/2026 06 AM PDT 129.16 8264 - Normal
08/16/2026 07 AM PDT 129.18 8314 + Normal
08/16/2026 08 AM PDT 129.18 8314 0 Normal
08/16/2026 09 AM PDT 129.17 8289 - Normal
08/16/2026 10 AM PDT 129.18 8314 + Normal
08/16/2026 11 AM PDT 129.18 8314 0 Normal
08/16/2026 12 PM PDT 129.18 8314 0 Normal
08/16/2026 01 PM PDT 129.19 8340 + Normal
08/16/2026 02 PM PDT 129.19 8340 0 Normal
08/16/2026 03 PM PDT 129.18 8314 - Normal
08/16/2026 04 PM PDT 129.17 8289 - Normal
08/16/2026 05 PM PDT 129.16 8264 - Normal
08/16/2026 06 PM PDT 129.15 8239 - Normal
08/16/2026 07 PM PDT 129.13 8189 - Normal
08/16/2026 08 PM PDT 129.12 8164 - Normal
08/16/2026 09 PM PDT 129.11 8140 - Normal
08/16/2026 10 PM PDT 129.10 8115 - Normal
08/16/2026 11 PM PDT 129.08 8065 - Normal
08/17/2026 12 AM PDT 129.06 8014 - Normal
08/17/2026 01 AM PDT 129.05 7990 - Normal
08/17/2026 02 AM PDT 129.04 7965 - Normal
08/17/2026 03 AM PDT 129.04 7965 0 Normal
08/17/2026 04 AM PDT 129.04 7965 0 Normal
08/17/2026 05 AM PDT 129.04 7965 0 Normal
08/17/2026 06 AM PDT 129.05 7990 + Normal
08/17/2026 07 AM PDT 129.06 8014 + Normal
08/17/2026 08 AM PDT 129.07 8040 + Normal
08/17/2026 09 AM PDT 129.07 8040 0 Normal
08/17/2026 10 AM PDT 129.07 8040 0 Normal
08/17/2026 11 AM PDT 129.07 8040 0 Normal
08/17/2026 12 PM PDT 129.06 8014 - Normal
08/17/2026 01 PM PDT 129.05 7990 - Normal
08/17/2026 02 PM PDT 129.04 7965 - Normal
08/17/2026 03 PM PDT 129.02 7915 - Normal
08/17/2026 04 PM PDT 129.00 7866 - Normal
08/17/2026 05 PM PDT 128.97 7791 - Normal
08/17/2026 06 PM PDT 128.96 7766 - Normal
08/17/2026 07 PM PDT 128.94 7716 - Normal
08/17/2026 08 PM PDT 128.93 7692 - Normal
08/17/2026 09 PM PDT 128.93 7692 0 Normal
08/17/2026 10 PM PDT 128.92 7667 - Normal
08/17/2026 11 PM PDT 128.93 7692 + Normal
08/18/2026 12 AM PDT 128.94 7716 + Normal
08/18/2026 01 AM PDT 128.94 7716 0 Normal
08/18/2026 02 AM PDT 128.94 7716 0 Normal
08/18/2026 03 AM PDT 128.94 7716 0 Normal
08/18/2026 04 AM PDT 128.95 7741 + Normal
08/18/2026 05 AM PDT 128.96 7766 + Normal
08/18/2026 06 AM PDT 128.97 7791 + Normal
08/18/2026 07 AM PDT 128.97 7791 0 Normal
08/18/2026 08 AM PDT 128.99 7841 + Normal
08/18/2026 09 AM PDT 129.00 7866 + Normal
08/18/2026 10 AM PDT 129.02 7915 + Normal
08/18/2026 11 AM PDT 129.02 7915 0 Normal
08/18/2026 12 PM PDT 129.02 7915 0 Normal
08/18/2026 01 PM PDT 129.01 7891 - Normal
08/18/2026 02 PM PDT 129.01 7891 0 Normal
08/18/2026 03 PM PDT 129.00 7866 - Normal
08/18/2026 04 PM PDT 128.99 7841 - Normal
08/18/2026 05 PM PDT 128.97 7791 - Normal
08/18/2026 06 PM PDT 128.96 7766 - Normal
08/18/2026 07 PM PDT 128.95 7741 - Normal
08/18/2026 08 PM PDT 128.94 7716 - Normal
08/18/2026 09 PM PDT 128.93 7692 - Normal
08/18/2026 10 PM PDT 128.94 7716 + Normal
08/18/2026 11 PM PDT 128.94 7716 0 Normal
08/19/2026 12 AM PDT 128.93 7692 - Normal
08/19/2026 01 AM PDT 128.93 7692 0 Normal
08/19/2026 02 AM PDT 128.93 7692 0 Normal
08/19/2026 03 AM PDT 128.94 7716 + Normal
08/19/2026 04 AM PDT 128.94 7716 0 Normal
08/19/2026 05 AM PDT 128.95 7741 + Normal
08/19/2026 06 AM PDT 128.96 7766 + Normal
08/19/2026 07 AM PDT 128.97 7791 + Normal
08/19/2026 08 AM PDT 128.98 7816 + Normal
08/19/2026 09 AM PDT 128.99 7841 + Normal
08/19/2026 10 AM PDT 129.00 7866 + Normal
08/19/2026 11 AM PDT 129.00 7866 0 Normal
08/19/2026 12 PM PDT 128.99 7841 - Normal
08/19/2026 01 PM PDT 128.99 7841 0 Normal
08/19/2026 02 PM PDT 128.97 7791 - Normal
08/19/2026 03 PM PDT 128.96 7766 - Normal
08/19/2026 04 PM PDT 128.94 7716 - Normal
08/19/2026 05 PM PDT 128.92 7667 - Normal
08/19/2026 06 PM PDT 128.91 7642 - Normal
08/19/2026 07 PM PDT 128.91 7642 0 Normal
08/19/2026 08 PM PDT 128.89 7593 - Normal
08/19/2026 09 PM PDT 128.89 7593 0 Normal
08/19/2026 10 PM PDT 128.88 7568 - Normal
08/19/2026 11 PM PDT 128.88 7568 0 Normal
08/20/2026 12 AM PDT 128.87 7543 - Normal
08/20/2026 01 AM PDT 128.87 7543 0 Normal
08/20/2026 02 AM PDT 128.86 7518 - Normal
08/20/2026 03 AM PDT 128.86 7518 0 Normal
08/20/2026 04 AM PDT 128.86 7518 0 Normal
08/20/2026 05 AM PDT 128.87 7543 + Normal
08/20/2026 06 AM PDT 128.87 7543 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
08/20/2026 07 AM PDT 128.87 7543 Normal
08/20/2026 08 AM PDT 128.88 7568 + Normal
08/20/2026 09 AM PDT 128.88 7568 0 Normal
08/20/2026 10 AM PDT 128.89 7593 + Normal
08/20/2026 11 AM PDT 128.89 7593 0 Normal
08/20/2026 12 PM PDT 128.89 7593 0 Normal
08/20/2026 01 PM PDT 128.88 7568 - Normal
08/20/2026 02 PM PDT 128.88 7568 0 Normal
08/20/2026 03 PM PDT 128.87 7543 - Normal
08/20/2026 04 PM PDT 128.86 7518 - Normal
08/20/2026 05 PM PDT 128.86 7518 0 Normal
08/20/2026 06 PM PDT 128.85 7493 - Normal
08/20/2026 07 PM PDT 128.84 7468 - Normal
08/20/2026 08 PM PDT 128.83 7444 - Normal
08/20/2026 09 PM PDT 128.81 7394 - Normal
08/20/2026 10 PM PDT 128.79 7345 - Normal
08/20/2026 11 PM PDT 128.78 7320 - Normal
08/21/2026 12 AM PDT 128.76 7270 - Normal
08/21/2026 01 AM PDT 128.74 7221 - Normal
08/21/2026 02 AM PDT 128.73 7196 - Normal
08/21/2026 03 AM PDT 128.72 7172 - Normal
08/21/2026 04 AM PDT 128.71 7147 - Normal
08/21/2026 05 AM PDT 128.70 7123 - Normal
08/21/2026 06 AM PDT 128.69 7098 - Normal
08/21/2026 07 AM PDT 128.69 7098 0 Normal
08/21/2026 08 AM PDT 128.69 7098 0 Normal
08/21/2026 09 AM PDT 128.68 7073 - Normal
08/21/2026 10 AM PDT 128.68 7073 0 Normal
08/21/2026 11 AM PDT 128.68 7073 0 Normal
08/21/2026 12 PM PDT 128.68 7073 0 Normal
08/21/2026 01 PM PDT 128.68 7073 0 Normal
08/21/2026 02 PM PDT 128.68 7073 0 Normal
08/21/2026 03 PM PDT 128.68 7073 0 Normal
08/21/2026 04 PM PDT 128.68 7073 0 Normal
08/21/2026 05 PM PDT 128.68 7073 0 Normal
08/21/2026 06 PM PDT 128.68 7073 0 Normal
08/21/2026 07 PM PDT 128.68 7073 0 Normal
08/21/2026 08 PM PDT 128.68 7073 0 Normal
08/21/2026 09 PM PDT 128.68 7073 0 Normal
08/21/2026 10 PM PDT 128.68 7073 0 Normal
08/21/2026 11 PM PDT 128.68 7073 0 Normal
08/22/2026 12 AM PDT 128.68 7073 0 Normal
08/22/2026 01 AM PDT 128.68 7073 0 Normal
08/22/2026 02 AM PDT 128.68 7073 0 Normal
08/22/2026 03 AM PDT 128.68 7073 0 Normal
08/22/2026 04 AM PDT 128.68 7073 0 Normal
08/22/2026 05 AM PDT 128.68 7073 0 Normal
08/22/2026 06 AM PDT 128.68 7073 0 Normal
08/22/2026 07 AM PDT 128.68 7073 0 Normal
08/22/2026 08 AM PDT 128.68 7073 0 Normal
08/22/2026 09 AM PDT 128.68 7073 0 Normal
08/22/2026 10 AM PDT 128.68 7073 0 Normal
08/22/2026 11 AM PDT 128.68 7073 0 Normal
08/22/2026 12 PM PDT 128.68 7073 0 Normal
08/22/2026 01 PM PDT 128.68 7073 0 Normal
08/22/2026 02 PM PDT 128.68 7073 0 Normal
08/22/2026 03 PM PDT 128.68 7073 0 Normal
08/22/2026 04 PM PDT 128.68 7073 0 Normal
08/22/2026 05 PM PDT 128.68 7073 0 Normal
08/22/2026 06 PM PDT 128.68 7073 0 Normal
08/22/2026 07 PM PDT 128.68 7073 0 Normal
08/22/2026 08 PM PDT 128.68 7073 0 Normal
08/22/2026 09 PM PDT 128.68 7073 0 Normal
08/22/2026 10 PM PDT 128.68 7073 0 Normal
08/22/2026 11 PM PDT 128.68 7073 0 Normal
08/23/2026 12 AM PDT 128.68 7073 0 Normal
08/23/2026 01 AM PDT 128.68 7073 0 Normal
08/23/2026 02 AM PDT 128.68 7073 0 Normal
08/23/2026 03 AM PDT 128.68 7073 0 Normal
08/23/2026 04 AM PDT 128.68 7073 0 Normal
08/23/2026 05 AM PDT 128.68 7073 0 Normal
08/23/2026 06 AM PDT 128.68 7073 0 Normal
08/23/2026 07 AM PDT 128.68 7073 0 Normal
08/23/2026 08 AM PDT 128.68 7073 0 Normal
08/23/2026 09 AM PDT 128.68 7073 0 Normal
08/23/2026 10 AM PDT 128.68 7073 0 Normal
08/23/2026 11 AM PDT 128.68 7073 0 Normal
08/23/2026 12 PM PDT 128.68 7073 0 Normal
08/23/2026 01 PM PDT 128.68 7073 0 Normal
08/23/2026 02 PM PDT 128.68 7073 0 Normal
08/23/2026 03 PM PDT 128.68 7073 0 Normal
08/23/2026 04 PM PDT 128.68 7073 0 Normal
08/23/2026 05 PM PDT 128.68 7073 0 Normal
08/23/2026 06 PM PDT 128.68 7073 0 Normal
08/23/2026 07 PM PDT 128.68 7073 0 Normal
08/23/2026 08 PM PDT 128.68 7073 0 Normal
08/23/2026 09 PM PDT 128.68 7073 0 Normal
08/23/2026 10 PM PDT 128.68 7073 0 Normal
08/23/2026 11 PM PDT 128.68 7073 0 Normal
08/24/2026 12 AM PDT 128.68 7073 0 Normal
08/24/2026 01 AM PDT 128.68 7073 0 Normal
08/24/2026 02 AM PDT 128.68 7073 0 Normal
08/24/2026 03 AM PDT 128.68 7073 0 Normal
08/24/2026 04 AM PDT 128.68 7073 0 Normal
08/24/2026 05 AM PDT 128.68 7073 0 Normal
08/24/2026 06 AM PDT 128.68 7073 0 Normal
08/24/2026 07 AM PDT 128.68 7073 0 Normal
08/24/2026 08 AM PDT 128.68 7073 0 Normal
08/24/2026 09 AM PDT 128.68 7073 0 Normal
08/24/2026 10 AM PDT 128.68 7073 0 Normal
08/24/2026 11 AM PDT 128.68 7073 0 Normal
08/24/2026 12 PM PDT 128.68 7073 0 Normal
08/24/2026 01 PM PDT 128.68 7073 0 Normal
08/24/2026 02 PM PDT 128.68 7073 0 Normal
08/24/2026 03 PM PDT 128.68 7073 0 Normal
08/24/2026 04 PM PDT 128.68 7073 0 Normal
08/24/2026 05 PM PDT 128.68 7073 0 Normal
08/24/2026 06 PM PDT 128.68 7073 0 Normal
08/24/2026 07 PM PDT 128.68 7073 0 Normal
08/24/2026 08 PM PDT 128.68 7073 0 Normal
08/24/2026 09 PM PDT 128.68 7073 0 Normal
08/24/2026 10 PM PDT 128.68 7073 0 Normal
08/24/2026 11 PM PDT 128.68 7073 0 Normal
08/25/2026 12 AM PDT 128.68 7073 0 Normal
08/25/2026 01 AM PDT 128.69 7098 + Normal
08/25/2026 02 AM PDT 128.69 7098 0 Normal
08/25/2026 03 AM PDT 128.69 7098 0 Normal
08/25/2026 04 AM PDT 128.69 7098 0 Normal
08/25/2026 05 AM PDT 128.69 7098 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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